The best affiliate programs like piSys in 2025

InvoicingAPI is a versatile and developer-friendly invoicing platform designed to make creating, customizing, and managing invoices seamless for businesses of all sizes. With support for global tax regulations, a robust library of customizable templates, and the ability to generate beautifully formatted PDF invoices via a simple API call, InvoicingAPI streamlines the entire invoicing process. Users can invoice clients in any currency, integrate payment links for faster transactions, and manage payments, refunds, and payouts from an intuitive dashboard—all while enjoying a generous free tier and no fees on payments. The platform is platform-independent, supports unlimited app integrations with a single API key, and offers built-in safeguards to prevent accidental request overloads.

InvoicingAPI is a perfect solution for SaaS providers, e-commerce businesses, marketplaces, consultants, POS systems, and CRM developers looking to add dynamic, tax-compliant invoicing without heavy development overhead. Its ease of integration, high degree of customization, and focus on security and scalability make it an excellent choice for affiliates to promote, appealing to a broad audience of businesses seeking efficient and reliable invoicing solutions.

Immokalkulation.de is a professional real estate calculation tool designed to streamline property analysis for investors, agents, and anyone involved in real estate transactions. The platform offers comprehensive features for evaluating real estate investments, enabling users to make informed decisions based on detailed financial projections, cost breakdowns, and profitability assessments. Its user-friendly interface and robust calculation capabilities cater to both seasoned professionals and newcomers seeking accuracy and efficiency in their real estate evaluations.

This service is especially beneficial for real estate investors, brokers, and consultants who require reliable tools to assess property opportunities and present clear analyses to clients or partners. Affiliates promoting Immokalkulation.de can target a growing market of property professionals and private investors looking for powerful yet accessible solutions to optimize their investment decisions, making it an appealing choice for those in the real estate niche.

Tickerdata is an innovative investment automation tool that brings real-time and historical stock market data directly into your spreadsheet. Designed to streamline investment analysis, Tickerdata offers over 30 years of comprehensive financial statement data, live price updates, and access to more than 70,000 stocks across 70+ international exchanges. Users can effortlessly retrieve critical financial metrics and computed data without coding or manual data entry, making portfolio management and research more efficient and accessible.

Ideal for individual investors, financial analysts, and anyone who prefers to work within spreadsheets, Tickerdata eliminates the need for web scraping and manual updates. Its automation features, pre-built spreadsheet templates, and active investor community make it a compelling choice for those seeking to elevate their investment tracking. Affiliates can confidently promote Tickerdata as a time-saving, value-packed solution that empowers users to make smarter investment decisions with ease.

Tradelogz is an intuitive portfolio tracking and tax management platform designed specifically for cryptocurrency investors and traders. The service enables users to seamlessly import transactions from multiple exchanges and wallets, automatically categorize trades, and monitor real-time portfolio performance. Tradelogz simplifies the complex process of crypto tax reporting by generating accurate, ready-to-file tax reports compliant with local regulations, helping users stay organized and avoid costly mistakes.

This solution is ideal for both casual and professional crypto investors who want a hassle-free way to manage their digital asset portfolios and tax obligations. Affiliates will find Tradelogz appealing to promote due to its user-friendly features, time-saving automation, and the growing demand for reliable crypto tax solutions as the digital asset market expands.

StockIntent is a comprehensive investment research platform designed to help investors make smarter, data-driven decisions in the stock market. By combining trustworthy financial data with advanced backtesting capabilities, StockIntent empowers users to analyze companies quickly, test investment strategies, and uncover new opportunities without relying on market rumors or manual spreadsheets. Key features include a powerful stock screener with over 4,000 metrics, a proprietary company ranking system, detailed company reports, intuitive valuation models, robust backtesting tools, and customizable watchlists. The platform is tailored for various investment styles—value, growth, dividend, and momentum investing—offering pre-built models and visual analytics to simplify and accelerate investment research.

StockIntent is ideal for individual investors, financial enthusiasts, and professionals seeking to optimize their portfolios and reduce the noise in their decision-making process. Affiliates will find it an attractive product to promote thanks to its modern, user-friendly interface, extensive feature set, and broad appeal to anyone looking for an edge in the stock market. Its free 7-day trial and accessible pricing further lower the barrier for new users, making StockIntent a compelling choice for those serious about elevating their investment strategies.

Ranger is a user-friendly budgeting app designed to empower individuals to take control of their finances without the stress and complexity often associated with money management. Built by a small, independent team, Ranger offers zero-based budgeting that works with your actual account balances, ensuring you adjust your spending in real time based on your current financial situation. The app centralizes all your financial accounts, making it easy to track spending across multiple banks and credit cards, while leveraging secure technology through Plaid to protect your data. One standout feature is its ability to enrich transaction information, transforming cryptic statements into clear product names, so you always know exactly where your money goes.

Ranger is ideal for anyone seeking a straightforward, accurate, and supportive budgeting tool, from beginners to experienced budgeters frustrated by clunky alternatives. With an extended 35-day free trial, fast setup, and affordable pricing, it’s a compelling choice for users aiming to build healthier financial habits. Affiliates will find Ranger an attractive program to promote thanks to its unique blend of simplicity, transparency, and community-driven development, appealing to audiences looking for an honest, independent solution to budgeting.

Plark is a user-friendly cryptocurrency wallet and exchange platform designed to make digital asset management simple, secure, and accessible. Supporting a wide range of cryptocurrencies, Plark allows users to buy, sell, exchange, and store their crypto assets all in one place, without the need for complex technical knowledge. The platform emphasizes security and privacy, offering non-custodial wallet solutions where users retain full control over their funds, and integrates seamlessly with bank cards to facilitate easy fiat-to-crypto transactions. With an intuitive mobile app available for both iOS and Android, Plark provides a streamlined experience for managing crypto on the go, along with 24/7 support to assist users at any time.

Plark is an excellent choice for both beginners entering the cryptocurrency space and experienced users seeking a hassle-free way to manage their digital assets. Affiliates will find Plark attractive to promote due to its broad appeal, robust security measures, and commitment to simplifying crypto transactions, making it ideal for audiences interested in convenient and trustworthy crypto solutions.

Notion Hive offers a comprehensive, ready-to-use suite of Notion templates designed to help individuals effortlessly manage their finances. With tools to track income, expenses, savings goals, and subscriptions, users get an all-in-one dashboard that provides clear, actionable insights into their financial habits. The templates are built specifically for creators, freelancers, and anyone seeking greater control over their money, featuring customizable layouts, smart budgeting tools, visual reports, and instant reminders to never miss a payment. The setup is instant, with pre-filled examples and direct support access, making it both beginner-friendly and powerful enough for advanced users.

This solution is ideal for creators, freelancers, and finance-conscious individuals who want to eliminate the overwhelm of spreadsheets and complex finance apps. Affiliates will find Notion Hive an appealing product to promote thanks to its simplicity, broad appeal, and the value of a one-time purchase for lifetime access. Its focus on clarity, customization, and actionable insights makes it a standout choice for anyone aiming to build smarter money habits and take full control of their personal finances.

Unravel.Markets offers advanced, market-neutral factor portfolios tailored specifically for the digital asset and cryptocurrency markets. Utilizing both traditional and proprietary risk and alpha factors, their institutional-grade solutions are designed to deliver high-performance results while minimizing exposure to broad market movements. The platform features unique datasets and alpha sources, including liquidity, orderbook-derived, flow, on-chain, and sentiment factors, empowering users to access and deploy sophisticated investment strategies previously limited to traditional finance.

This service is ideal for institutional investors, quantitative traders, and crypto asset managers seeking robust, data-driven portfolio management tools that emphasize risk-adjusted returns and diversification. Affiliates will find Unravel.Markets an attractive program to promote due to its cutting-edge technology, strong performance metrics, and appeal to a growing audience of professional and advanced crypto investors looking for innovative ways to gain an edge in the digital asset space.

SQLAI.ai is an AI-powered platform designed to simplify and accelerate working with both SQL and NoSQL databases. It enables users to effortlessly generate, optimize, validate, simplify, format, and explain queries in seconds using natural language instructions. Supporting a vast range of database engines and capable of handling very large and complex schemas, SQLAI.ai offers features like step-by-step optimization, syntax validation with detailed explanations, query conversion between engines, and instant streaming results. Users can add data sources easily, set rules for increased accuracy, and benefit from powerful tools such as schema autosuggest, query comparison, and a full-featured query editor—all within an intuitive, affordable interface.

SQLAI.ai is ideal for developers, data analysts, business professionals, and learners who want to save time, reduce errors, and gain immediate data insights without waiting for technical teams. Affiliates will find SQLAI.ai an attractive product to promote due to its broad appeal, ease of use, and proven benefits for both beginners and experts seeking to streamline database tasks, optimize workflows, and enhance productivity.