The best affiliate programs like Spell.so in 2025

GPTExcel is an AI-powered spreadsheet assistant designed to automate and simplify complex tasks in Excel, Google Sheets, LibreOffice Calc, and Airtable. It offers a comprehensive suite of tools including formula generation and explanation, SQL query creation, automation script generation (VBA, Apps Script, Airtable Script), regex pattern building, and table template creation. Users can also leverage features like chatting directly with their Excel files, converting image-based tables to editable spreadsheets, generating charts and graphs, and performing advanced data analysis to gain actionable insights and concise reports.

This service is ideal for professionals, businesses, analysts, and anyone who regularly works with spreadsheets and wants to save time, reduce errors, and boost productivity. Affiliates will find GPTExcel an attractive solution to promote due to its broad applicability, robust free tier, competitive pro plan, and proven track record with over 900,000 users and 30 million formulas generated, making it a trusted choice for streamlining spreadsheet workflows.

Saner.ai is an AI-powered platform designed to help individuals and teams boost productivity, creativity, and organization. By leveraging advanced artificial intelligence, Saner.ai enables users to capture, manage, and recall information effortlessly. Its core features include smart note-taking, seamless knowledge organization, and powerful search capabilities, allowing users to find insights and connections across their notes and documents with ease. The platform also offers integrations with popular tools, ensuring a smooth workflow and enhanced collaboration.

Saner.ai is an excellent choice for knowledge workers, students, researchers, and professionals who need to organize large amounts of information and streamline their workflows. Affiliates will find it appealing to promote due to its innovative approach to information management, practical benefits for productivity, and wide relevance across various industries and user types seeking smarter ways to manage and utilize knowledge.

Podwise is an AI-powered platform designed to revolutionize the way podcast enthusiasts consume and manage audio content. By leveraging advanced artificial intelligence, Podwise automatically extracts structured knowledge from podcast episodes, allowing users to access concise summaries, outlines, mindmaps, and notable quotes within minutes. The platform supports multiple languages and offers accurate transcriptions, making it easy to search, reference, and retain information from a vast array of podcasts. Seamless integration with popular knowledge management tools such as Notion, Obsidian, Readwise, and Logseq further enhances users’ ability to organize and utilize podcast insights efficiently.

Podwise is ideal for podcast lovers, knowledge seekers, professionals, and students who want to maximize the value of their listening time and streamline their learning process. Affiliates will find Podwise an appealing product to promote due to its innovative approach to podcast consumption, robust feature set, and flexible pricing plans—including a free tier—making it accessible and attractive to a wide audience eager to learn faster and smarter from podcasts.

PDF-API.io is an intuitive and powerful PDF generation platform designed to simplify the creation, customization, and automation of professional PDFs. It features a user-friendly drag-and-drop designer as well as an advanced HTML editor, catering to both non-technical users and developers. With dynamic data integration, customizable templates, fillable form fields, and support for images, QR codes, and barcodes, users can create pixel-perfect, branded documents in minutes. The platform also offers robust workflow optimization tools, flexible page management, advanced table controls, and seamless integration through a REST API or no-code tools like Zapier, making it easy to automate document processes across various business systems.

PDF-API.io is ideal for freelancers, small businesses, enterprises, and developers who need efficient and scalable PDF generation for invoices, reports, contracts, and more. Affiliates will find this service attractive to promote due to its wide market appeal, affordable pricing plans, and accessibility for users of all skill levels. Its combination of powerful features, ease of integration, and focus on workflow automation makes it a compelling solution for any business seeking to streamline document management and delivery.

PaletteBrain is a powerful macOS app that brings the capabilities of ChatGPT and other leading AI models directly into every application and website on your Mac. By allowing users to invoke AI commands via simple keyboard shortcuts, PaletteBrain eliminates the hassle of switching between windows or copy-pasting text, streamlining tasks like grammar correction, translation, summarization, content creation, and more. Users can bring their own OpenAI or Azure API keys, ensuring unlimited usage with minimal ongoing costs, and enjoy a lifetime license with no recurring fees. The app offers full customization of AI commands, seamless integration with all macOS apps, private and secure data handling, and is actively maintained for reliability and up-to-date model access.

PaletteBrain is ideal for founders, creators, marketers, educators, writers, developers, and productivity enthusiasts who want to supercharge their workflow and save time on repetitive tasks. With its unique pay-once, use-forever model and compatibility across any macOS app, it offers affiliates a compelling value proposition for anyone looking to enhance their productivity with AI, without the burden of ongoing subscription costs or limited app integrations.

OtO is a professional-grade, all-in-one presentation and teleprompter solution designed for Windows and macOS, catering to the needs of presenters, performers, and event managers. Unlike traditional teleprompters, OtO goes beyond simple script display, offering seamless control over slides, media, lighting, and more from a single platform. Its hardware-agnostic approach ensures compatibility with any teleprompter hardware and supports every language and script, making it suitable for global audiences. Key features include fail-safe peer-to-peer networking, multi-screen and multi-device synchronization, integration with PowerPoint and Keynote, MIDI and ShuttleXpress controller compatibility, real-time collaboration, AI-powered text summarization and translation, customizable themes, and mobile companion apps for on-the-go control.

OtO is ideal for professionals running live shows, delivering keynotes, filming content, or orchestrating complex events where flawless synchronization and adaptability are crucial. Its robust feature set, privacy-focused local AI processing, and flexible licensing make it an attractive tool for anyone looking to streamline their presentation workflow. Affiliates will find OtO a compelling offer for their audiences, as it addresses a wide range of use cases and provides practical, innovative solutions for both individuals and teams in the presentation and performance industry.

Novelcrafter is an all-in-one writing platform built to support authors through every stage of the creative process, from dreaming up ideas to delivering polished stories. Designed by writers for writers, it offers a comprehensive set of tools such as the Codex—a robust wiki that seamlessly tracks characters, places, and lore across projects—along with flexible planning modes to identify plot holes and inconsistencies early on. Novelcrafter’s ecosystem is highly adaptable, supporting a wide range of writing genres and formats, from novels and poetry to screenplays, articles, and even social media content. Its AI integration empowers users to brainstorm, draft, and review with customizable assistance, while collaboration features make it ideal for writing partners, groups, or editors.

This platform is perfect for both aspiring and established writers seeking a streamlined, distraction-free environment that adapts to their unique workflow. Affiliates will find Novelcrafter appealing to promote thanks to its broad usability, competitive pricing, and positive testimonials from published authors who appreciate its ease of use, powerful AI capabilities, and commitment to user freedom and privacy. Writers looking for a flexible, community-driven tool that keeps them organized and inspired will find Novelcrafter an invaluable asset.

MultiChat AI is an advanced conversational platform that brings together the power of top large language models (LLMs) such as GPT-5, Mixtral, Llama-3, Claude-3, Gemini 1.5 Pro, Perplexity, and more, all within a single, unified dashboard. Users gain seamless access to both premium and open-source LLMs, as well as uncensored models designed for unfiltered conversations, roleplay, and NSFW interactions. In addition to text-based AI chat, MultiChat AI offers pre-built assistants crafted for a variety of needs, from standard dialogue and business automation to specialized character and NSFW chats. The platform also features AI image generation with DALL-E 3 and Stable Diffusion, along with robust image editing tools such as background removal, image extension, and upscaling.

With its user-friendly interface, customizable settings, and scalable infrastructure, MultiChat AI is suitable for anyone seeking to enhance their digital interactions—whether for personal companionship, creative roleplay, business productivity, or content creation. Affiliates will find this product highly appealing to a broad and growing audience, thanks to its unique blend of cutting-edge AI technologies, wide range of features, and strong user satisfaction. Its all-in-one convenience and versatility make it a strong choice for affiliates targeting tech-savvy users, professionals, and digital enthusiasts looking for the next evolution in AI-powered communication.

Minform is an AI-powered form builder designed to help users create professional forms, quizzes, and calculators with ease. The platform offers a minimal yet feature-rich editor, allowing you to build everything from lead capture forms and payment forms to interactive quizzes and dynamic calculators. With AI-assisted generation, real-time previews, and a distraction-free interface, users can effortlessly design single or multi-page forms, customize layouts, add conditional logic, and utilize variables for complex calculations. Minform also supports multi-column layouts, file uploads, custom branding, and a host of integrations including Google Sheets, Google Analytics, Zapier, Stripe payments, and more.

Ideal for businesses, educators, marketers, and creators looking to collect data, process payments, or engage audiences interactively, Minform streamlines the form-building process without overwhelming users with complexity. Its free forever plan, generous response limits, and advanced features make it an attractive choice for organizations of all sizes. Affiliates will find Minform appealing to a wide audience, thanks to its versatility, ease of use, and integration capabilities, making it a valuable tool to promote for those seeking modern, flexible form solutions.

MemoAI is a powerful tool designed to simplify the process of transcribing, translating, and summarizing audio and video content. Whether you're working with YouTube videos, podcasts, or local media files, MemoAI quickly converts audio into text with support for over 90 languages. Its advanced features include real-time subtitles, AI-powered summarization, floating notes, speaker diarization for identifying different voices, and customizable AI prompts. MemoAI leverages GPU acceleration for rapid processing on both Windows and macOS devices and operates entirely offline to ensure user privacy and data security.

This solution is ideal for content creators, educators, journalists, and professionals who need accurate, efficient transcription and translation workflows. Affiliates promoting MemoAI will find it appealing to a wide audience seeking to streamline their media processing tasks, thanks to its robust feature set, cross-platform compatibility, privacy focus, and ease of use, making it a valuable addition to any productivity or content-creation toolkit.