Finance & Payments
Fintech tools for payments, banking, invoicing, expense tracking, and financial automation.
🏆 See the best finance & payments tools, ranked by the community →CalculatorFox
CalculatorFox is a library of 1,336 free online calculators spanning 23 subject areas, from mortgage payments and profit margins to BMI, unit conversion, grading, and date math. It is built for people who need a number they can trust and a way to see how that number was produced. Instead of returning a bare result, each calculator displays the live output next to step-by-step workings and cited sources, such as HUD Mortgagee Letter 2023-05 for a mortgage payment or published tax guidance for payroll figures. The results recalculate as you change the inputs, and no account is needed to use any of the calculators.The same calculation engine can also be embedded on other websites. Businesses can set the values a calculator opens with, such as an interest rate, a tax band, or their own prices, and store those figures in an account rather than in page code. When a rate changes, it is updated in one place and every page showing that calculator follows on its next load.What Makes CalculatorFox Stand OutA large, organized library: 1,336 calculators grouped into 23 categories, including Loans, Credit and Banking, Tax, Payroll and Benefits, Fitness and Nutrition, Construction and Trades, and Business, Pricing and Commerce, so most common calculations already exist.Visible working and cited sources: Every calculator shows the steps behind the result and links the guidance or data it relies on, which makes the answer auditable rather than a black box.Embeddable calculators with hosted figures: Three lines of code place a calculator on a site, and the starting values live in your account, so a rate or price can be changed once and picked up across every embed. Embedded calculators carry no ads and do not track readers.Scenario saving and comparison: On paid plans, users can save scenarios, compare them side by side, and export or share the results, which suits recurring decisions like loan versus loan or product pricing options.Per-website embeds for partners: Advisor plans issue each website its own token, colours, and figures, so a partner site can present different rates from your own while still using the same calculator.Who Should Use CalculatorFoxIndividuals handling everyday decisions: A free, ad-light way to work out a mortgage payment, a salary conversion, a BMI, a percentage change, or a calorie target without creating an account.Finance, marketing, and operations teams: Calculators for margin, markup, break-even, ROAS, ROI, commission, shipping, and working-day planning cover the routine numbers behind pricing and growth decisions.Advisers and publishers who want calculators on their own site: Mortgage advisers, accountants, and content publishers can embed calculators under their own branding with pre-set figures, which keeps client-facing and public pages current without editing HTML.Frequently Asked QuestionsWhat is CalculatorFox?CalculatorFox is a website offering 1,336 free calculators across 23 categories, with each page showing live results, the steps used to reach them, and the sources behind the method. It also provides an embed builder so the same calculators can run on other websites.Is CalculatorFox free to use?Every calculator is free to use without an account. Embedding a calculator on a website is also free. Paid plans add a workspace for saving and comparing scenarios, report and client pages for advisers, and per-website embeds with custom branding and figures.Can I embed a CalculatorFox calculator on my own website?Yes. The embed builder generates a short code snippet. You choose the starting values, optionally lock any field readers should not change, and the figures are stored with your account, so updating a rate in one place updates every page that uses that calculator.
PrivateTechShares
PrivateTechShares is an information and tools resource for people who hold equity in private companies. It is built for founders, co-founders, current and former employees with vested options or ESOP grants, and early angels who want a clear picture of what their shares are worth before a liquidity event. The core problem it addresses is that most knowledge about private-company equity sits with venture capitalists, angel investors and professional advisers, while the people who earned the equity are left with an opaque process, no easy valuation, and large secondary platforms that rarely handle smaller transactions. PrivateTechShares closes that gap with plain-English guides, free browser-based calculators and a paid preparation toolkit covering the United States and seven European countries.What Makes PrivateTechShares Stand OutFree valuation and exercise tools: A share value estimator, an exit waterfall calculator, an option exercise calculator and an AMT-aware version for US taxpayers run in the browser with no sign-up and no data stored.Sourced, dated country tax guides: Transfer and tax playbooks for the United States, Germany, the United Kingdom, France, Spain, Italy, the Netherlands and Poland, each showing where the figures come from and the year they apply to.Preparation over advice: The paid Equity Toolkit is an eight-phase, A to Z deal map with explicit STOP points that mark exactly when a lawyer, tax adviser or notary should take over, plus editable documents and ready-to-send messages.Coverage of 250+ private companies: Guides for individual names such as OpenAI, Anthropic, SpaceX, Stripe, Databricks, Revolut, Monzo, Helsing and Mistral AI, alongside US pre-IPO and EU unicorn indexes.No brokerage in the middle: PrivateTechShares does not hold shares, introduce buyers or take a cut of any transaction. It prepares the shareholder to act on their own terms.Who Should Use PrivateTechSharesFounders and early shareholders who need a realistic value range for common shares, adjusted for preference stacks, dilution and tax, and who want a clear paperwork path for a small secondary sale.Employees and leavers holding ESOP options who need to understand exercise cost, the US alternative minimum tax trap, the roughly 90-day post-departure exercise window, and whether vesting, a right of first refusal or board approval will block a transfer.Early angels and small private shareholders in the US or Europe whose stake size falls below the minimums of institutional secondary platforms such as Forge, EquityZen or Nasdaq Private Market.Frequently Asked QuestionsIs my startup equity worth anything before an exit?Often yes, but usually less than the headline price from the last funding round. Most founders and employees hold common shares, which carry less value than the preferred shares investors bought, and the position is illiquid. A discount is typically applied to reflect company stage and buyer demand. PrivateTechShares offers a free estimator that returns a realistic range rather than a single figure.What does it cost to exercise stock options?You pay the strike price set in your grant for each share you exercise. On top of that, exercise can trigger a tax charge: in the United States the alternative minimum tax may apply to incentive stock options. Because options are not shares until exercised, that cost must be funded before any sale can happen. Free calculators give a rough figure, and the toolkit lists the exact tax questions to bring to an adviser.Do I need the company's permission to sell my shares?Usually there are transfer restrictions. A right of first refusal, board approval or company consent clause is common in shareholder agreements. These are procedural hurdles rather than hard blocks: the seller clears them with the company or board before completing the transfer, which is why the toolkit includes draft waiver requests, a document checklist and a readiness audit.
Checkout Saver
Checkout Saver is an independent savings platform that helps online shoppers cut costs through cashback, discount gift cards, one-time use coupons, free promo codes, and referral rewards. Unlike conventional coupon sites that hide codes behind clicks or extensions, it gives you direct access to deals. Built for budget-conscious consumers, it partners with over 5,000 retailers so you can save on everyday purchases from Amazon to Zappos.What Makes Checkout Saver Stand OutTen ways to save in one place: Stack cashback, discount gift cards, coupon codes, and referral bonuses for maximum discounts at checkout.No hidden coupon codes: All free coupon codes are displayed openly, with no click-to-reveal tricks or mandatory sign-up walls.Top cashback and gift card rates: The platform passes more of its retailer commission back to members, leading to higher cashback percentages and better buy/sell rates for gift cards compared to many competitors.One-time use coupon marketplace: Buy and sell exclusive single-use coupon codes that can be applied to an order, a feature few other platforms offer.Smart shopping tools: Includes a price drop tracker, receipt and warranty tracker, an eBay bid sniper, and Credit Lab to monitor your credit score, giving you more control over your spending.Who Should Use Checkout SaverEveryday online shoppers looking to automatically earn cashback and apply the best coupon codes at checkout across thousands of popular stores.Deal hunters and couponers who want access to exclusive one-time use coupons, early sale alerts, and higher cashback payout formulas than traditional coupon sites.Gift card holders who want to sell unwanted cards for the highest rates or buy discounted cards from brands like Amazon, Target, and Best Buy to save immediately.Frequently Asked QuestionsWhat is Checkout Saver?Checkout Saver is a free, independent savings platform that combines cashback, discount gift cards, coupons, and other money-saving tools. You join with an email or social account, browse supported stores, and start saving at checkout.How does Checkout Saver work?When you shop through Checkout Saver links, retailers pay the platform a commission for sending customers. Checkout Saver shares most of that commission with you as cashback. You can also buy discounted gift cards, use exclusive one-time use coupon codes, or participate in the referral community to earn additional rewards.Is Checkout Saver really free to use?Yes. There are no subscription fees, hidden charges, or costs to access coupons or cashback. The platform generates revenue by taking a small cut of retailer commissions and buy/sell spreads, so members can save without paying any membership fees.
Spontaneous.travel
Spontaneous.travel is a budget-first travel discovery tool that helps travelers find affordable destinations based on their actual budget, origin city, and travel dates. By analyzing recently observed flight fares, hotel estimates, and daily spending power, it shows users exactly where they can afford to go. Unlike generic travel search engines, Spontaneous.travel puts your budget front and center, making it easy to plan spontaneous trips without overspending.What Makes Spontaneous.travel Stand OutBudget-first approach: Enter your total trip budget, and the tool calculates how much you can spend on flights, accommodation, and daily expenses for over 200 destinations worldwide.Recently observed fares: Flight prices are based on recently observed data, giving you a realistic picture of current costs. Always confirm before booking.Daily spending estimates: See how much money you'll have left for food, transport, and activities after covering flights and hotels.Flexible filters: Customize your search by month, trip duration, number of travelers, and accommodation type (hostel, hotel, or luxury).Multi-currency support: View prices in EUR, USD, GBP, CHF, and many other currencies.Who Should Use Spontaneous.travelBudget-conscious travelers who want to maximize their trip experience without exceeding their spending limit.Spontaneous adventurers looking for last-minute getaway ideas based on real affordability.Travel planners who want to compare multiple destinations side by side using a single budget metric.Frequently Asked QuestionsWhat is Spontaneous.travel?Spontaneous.travel is a web-based tool that helps you discover travel destinations matching your budget. It uses recently observed flight fares, hotel estimates, and local spending averages to tell you where you can afford to go.How does Spontaneous.travel work?Enter your departure city, total budget, trip duration, and travel month. The tool then calculates affordable destinations by subtracting flight and accommodation costs from your budget, leaving a daily spending amount. Results show you which destinations fit within your budget.Are the prices guaranteed?No, prices shown are based on recently observed fares and estimates. Always confirm final prices directly with airlines and hotels before booking.
witn
witn is an outcome-based billing infrastructure designed for AI agent builders. It enables companies to define what a successful outcome looks like—such as a resolved support ticket or a merged pull request—send events from their existing systems, and automatically verify and bill only confirmed results. This approach replaces traditional usage-based or subscription models with billing that aligns with the actual value delivered by AI agents.What Makes witn Stand OutOutcome-native billing: Charges are based on verified results rather than activity metrics like tokens, API calls, or time spent, ensuring customers pay only for outcomes they trust.Real-time outcome resolution: Signals are evaluated as they arrive, with a configurable settlement window (default 72 hours) that prevents billing until outcomes are confirmed and reverses if conditions change.Per-customer contracts: Customize products, prices, and outcome definitions for each customer without branching billing logic or code forks.Simulation capabilities: Preview how changes to billing conditions would affect outcomes and revenue by replaying historical events before deploying.Seamless integration: Works with existing event tracking stacks (Segment, Rudderstack, PostHog) and payment processors (Stripe), requiring no new systems or major rebuilds.Who Should Use witnAI agent startups and scale-ups looking to monetize their agents with a pricing model that reflects the actual value created, moving away from per-seat or per-call billing.Product and engineering teams building autonomous agents (coding, customer support, SRE, voice) who need a flexible billing system that can handle complex, time-dependent success criteria.Finance and revenue operations teams seeking auditable billing with clear event trails for revenue recognition (ASC 606) and dispute resolution without manual reconciliation.Frequently Asked QuestionsWhat is witn?witn is outcome-based billing infrastructure for AI agent builders. You define what a successful outcome looks like, send events from your system, and witn confirms or rejects the outcome automatically so you bill only verified results.How does witn verify that an outcome happened?You send events from your product. Each outcome has a billable condition—a boolean rule evaluated against the event log after every event. When the condition is satisfied, the outcome becomes pending. After a settlement window expires with the condition still holding, the outcome confirms and becomes billable.How is witn different from usage-based billing platforms like Metronome or Orb?Usage platforms meter activity such as tokens, minutes, and API calls. witn bills verified outcomes. Activity signals feed the billable condition instead of landing directly on the invoice, allowing for reversals and time-based verification.
Shark Invoice
Shark Invoice is a WhatsApp-first GST invoicing platform designed for Indian small and medium businesses (SMBs), freelancers, and sole proprietors. It solves the problem of slow payment collection by integrating invoicing directly into WhatsApp, allowing users to create, send, and manage GST-compliant invoices and quotes through a simple chat interface. Each invoice includes a UPI payment link, enabling customers to pay instantly without downloading any additional app.What Makes Shark Invoice Stand OutWhatsApp-first workflow: Create invoices and quotes entirely through WhatsApp chat prompts. No need to switch between apps or log into a dashboard to generate documents.Built-in GST compliance: Automatically handles HSN/SAC codes, CGST/SGST/IGST splits, and place-of-supply logic based on your business details and GSTIN.UPI on every invoice: Every invoice includes a UPI payment link and QR code. Customers can tap to pay using any UPI app like Google Pay, PhonePe, or Paytm.Instant quote-to-invoice conversion: Send quotes via WhatsApp, and when a client approves, convert the quote to an invoice with a single tap.Professional PDFs with public links: Invoices are delivered as clean PDFs and shareable public links that customers can view without signing up.Who Should Use Shark InvoiceIndian freelancers and solopreneurs who frequently send invoices and quotes via WhatsApp and need a simple way to remain GST-compliant without heavy accounting software.Small business owners looking to reduce payment cycles by embedding UPI payment links directly into invoices, making it easy for customers to pay instantly.Service providers and consultants who rely on quick quote approvals and want a seamless WhatsApp-based workflow to convert quotes into invoices.Frequently Asked QuestionsWhat is Shark Invoice?Shark Invoice is a WhatsApp-first invoicing tool for Indian businesses that creates GST-compliant invoices and quotes. Users interact with a WhatsApp chatbot to add clients, items, and tax details, and get a professional PDF with a UPI payment link.How does Shark Invoice work?After signing up and adding your business details, you start a chat with Shark Invoice on WhatsApp. You select options to create an invoice or quote, choose a client, enter item descriptions, quantities, rates, and GST%. The system generates a GST-compliant PDF and a public link, which you can share directly with your customer.Is Shark Invoice free?Yes, Shark Invoice offers a free plan that includes 5 invoices per month forever. For unlimited invoices and additional features like no 'Powered by' footer, the Pro plan costs ₹499 per month or ₹4,500 per year.
AlphaVue
AlphaVue is a multi-agent AI stock analysis and investment research platform designed for individual investors. It solves the problem of fragmented information by providing automated, institution-grade research reports with clear judgment, evidence traceability, and ongoing monitoring. The platform uses 20+ AI agents to analyze stocks across global markets, covering price, earnings, news, and sentiment.What Makes AlphaVue Stand OutMulti-agent collaboration: 20+ specialized agents work in parallel to collect data, cross-debate, and validate risks, delivering a comprehensive analysis in minutes.BUY/HOLD/SELL with confidence and risk level: Each judgment includes a confidence score and risk rating, so you know how much to trust the recommendation.Bull and bear debates: The platform presents both sides of the argument, ensuring you see not only the positives but also the risks and counterpoints.Continuous monitoring with change alerts: When the investment thesis changes, you receive automatic notifications, eliminating the need to constantly check the market.Full evidence chain: Every conclusion is traceable back to its source, including analyst reports, news, and financial data.Who Should Use AlphaVueIndividual investors seeking professional-grade stock analysis without the high cost of traditional research services.Active traders who need quick, data-driven judgments to support their trading decisions and want to monitor multiple positions.Long-term investors who value continuous monitoring of their holdings and want to stay informed about changes in investment theses.Frequently Asked QuestionsWhat is AlphaVue?AlphaVue is a web-based AI-powered stock research platform that uses multiple AI agents to analyze stocks and provide investment judgments. It covers 50,000+ stocks across 70+ global markets.How does AlphaVue work?Simply enter a stock ticker, and 20+ agents immediately start gathering intelligence, cross-debating, and validating risks. Within minutes, you receive a BUY/HOLD/SELL judgment with confidence level, risk assessment, and detailed reports from each agent.Is AlphaVue free to use?Yes, AlphaVue offers a free plan with limited analysis credits and basic features. For higher usage limits, email alerts, and extended history, you can upgrade to a Pro subscription starting at ¥79/month.
Variabl
Variabl is a sales commission software platform built for finance, revenue operations, and sales leadership teams that manage complex incentive compensation programs. It replaces spreadsheets, brittle rules engines, and consultant-built logic with a no-code plan builder, a scalable calculation engine, and AI-native seller insights. The product targets organizations where commission plans change frequently, where data volumes and organizational hierarchies are large, and where payout errors or slow processing cycles create friction between sellers and finance. It connects to CRM, ERP, payroll, and data sources such as Salesforce, HubSpot, NetSuite, PostgreSQL, Zoho, and Namely so payment data stays in sync.What Makes Variabl Stand OutNo-code commission plan builder: Finance and RevOps teams create, launch, and manage compensation structures using a library of reusable, pre-tested plan components, with effective-date versioning for plans, rules, and roles.High-volume calculation engine: In-memory processing handles large datasets, complex hierarchies, multiple payout calendars, currencies, and business units without slow batch runs.Commission workflow automation: Approvals, adjustments, exceptions, routing, and statement generation and distribution run through a no-code automation engine instead of manual handoffs and email threads.Seller transparency and AI assistance: Reps get modern dashboards, detailed commission statements, earnings simulation and preview tools, plus an AI-powered assistant that explains payouts in plain language.Governance and auditability: Full audit trails across data, rules, and processing events, along with role-based access controls, sandbox environments, historical data versioning, and SOC I and SOC II Type II compliance.Who Should Use VariablRevenue operations and finance teams managing incentive compensation across multiple business units, currencies, and payout calendars who need accurate, auditable results without heavy reliance on third-party consultants.Sales leaders and account executives who want clear, real-time visibility into quota attainment and payouts, including simulation tools for planning and forecasting.Growing companies moving off spreadsheets that have outgrown manual commission tracking but find legacy incentive compensation management suites too costly or rigid to implement quickly.Frequently Asked QuestionsWhat is Variabl?Variabl is a cloud-based sales commission and incentive compensation management platform. It covers plan design, commission automation, calculations, seller statements, and governance in one system, and syncs with CRM, ERP, and payroll tools so payouts remain accurate as the business changes.How does Variabl handle complex commission plans?Plans are assembled from pre-tested components in a no-code builder that supports advanced logic and conditions. Effective-date versioning lets teams change rules without rebuilding prior periods, and the calculation engine processes high data volumes with in-memory performance across multiple calendars and currencies.What are the limitations of Variabl?Variabl is aimed at organizations with meaningful commission complexity and volume, so very small teams may find a spreadsheet or a simpler tool sufficient. Pricing is quote-based and starts with a demo, and full value depends on integrating your CRM, ERP, and payroll systems.
Wandurance
Wandurance is a free, browser-based digital nomad budget calculator that helps long-term travelers estimate how many days their money will last in any country. Instead of simply quoting exchange rates, it prices everyday expenses at local cost of living using purchasing power parity (PPP), giving a realistic daily cost for accommodation, food, local transport, and basic medical care. Designed for digital nomads, backpackers, expats, and slow travelers, Wandurance runs entirely on your device with no account and no backend, so your budget data never leaves your browser.What Makes Wandurance Stand OutPPP-based cost estimates: Unlike a currency converter that only shows the exchange rate, Wandurance scales daily costs to each country's local price level, so you see how far your dollars actually stretch on the ground.Multi-stop trip planner: Stack destinations in the order you'd visit, set days per stop, and see whether the entire route fits inside one travel budget.Destination comparison tool: Compare two or more countries side by side to see how many days your budget buys in Lisbon versus Chiang Mai versus Mexico City before committing to a base.Adjustable daily costs: Override any cost category with your own numbers, or pick a lifestyle tier from Frugal to Lavish, to match your actual spending habits.Works offline with shareable links: Once loaded, the calculator keeps running with no internet connection, and you can copy a link that restores your exact budget, destination, and lifestyle settings for sharing or saving.Who Should Use WanduranceDigital nomads planning their runway: Treat your savings like startup runway: compare how many working-free days a fixed pot of money buys in different cities before you book a flight or lease an apartment.Backpackers and gap-year travelers: Switch to the Frugal tier, check daily numbers for each stop, and see how many weeks your trip actually has left across a multi-country route.Expats, slow travelers, and remote retirees: For long stays, small daily differences compound fast; the daily-cost breakdown helps sanity-check a monthly budget before applying for a long-stay visa.Frequently Asked QuestionsHow is Wandurance different from a currency converter?A currency converter only tells you the exchange rate, which says nothing about what things actually cost once you're there. Wandurance scales daily costs to each country's local price level, so it answers a different question: how many days will my money actually cover here?Which countries are cheapest for digital nomads right now?Among popular nomad hubs, South and Southeast Asia consistently stretch a budget furthest: India, Nepal, Indonesia, and Vietnam all come in under $40 per day at a normal lifestyle in Wandurance's model. The app includes 190+ countries and a ranked table of budget-friendly destinations to get you started.What costs does the estimate include?The default estimate covers accommodation, food, local transport, and a small basic-medical-care buffer, plus an optional coworking and connectivity add-on. It does not include flights, visas, or travel insurance, and the medical reserve is not a substitute for a real insurance policy.


