The best affiliate programs like OtO in 2025

TMetric is a time tracking and productivity software designed to help individuals, freelancers, and businesses of all sizes manage their time effectively, optimize workflows, and increase overall efficiency.

Key features include:

• Time tracking
• Task and project management
• Billing and invoicing
• Team management
• Productivity tracking
• Time off management
• 50+ integrations

TMetric is widely praised for its user-friendly interface, ease of use, and comprehensive feature set, making it a valuable tool for freelancers, small businesses, and larger teams across various industries like software development, marketing, consulting, and law.

Notion is an all-in-one workspace that blends the functionality of note-taking, project management, and collaboration into a single, cohesive platform. Designed for both individuals and teams, Notion allows users to create customized and interconnected databases, wikis, and task lists, making it a versatile solution for organizing and streamlining workflows. Its intuitive drag-and-drop interface and robust suite of templates enable seamless integration and easy adaptation to various personal and professional needs, from managing daily to-dos to overseeing complex projects.

Ideal for students, professionals, entrepreneurs, and organizations of all sizes, Notion simplifies the challenge of juggling multiple tools by consolidating them into one powerful application. Whether you're planning a project, brainstorming ideas, tracking progress, or collaborating with team members in real-time, Notion offers a flexible yet structured environment to enhance productivity and ensure that all relevant information is accessible in one place.

Grammarly is a leading AI-powered writing assistant that helps users improve their writing by providing real-time grammar, spelling, punctuation, and style suggestions. It's designed to enhance communication for a wide range of users, from students and professionals to content creators and casual writers. With Grammarly, users can refine their writing in emails, social media posts, essays, and even business documents, ensuring clarity, correctness, and engagement.

Grammarly's advanced features include tone detection, vocabulary enhancement, and plagiarism detection, making it a valuable tool for anyone looking to communicate more effectively. The platform is available as a browser extension, desktop app, and mobile keyboard, ensuring that users can write with confidence wherever they are.

Ideal for promoting to a broad audience, Grammarly appeals to individuals looking to improve their writing skills, businesses aiming to maintain professional communication standards, educators, and students. By joining Grammarly’s affiliate program, publishers can tap into a product that is highly relevant, widely used, and trusted by millions worldwide.

StoryFlint offers a comprehensive suite of Notion-based templates and resources specifically designed to help writers plan, organize, and finish their stories with confidence. The flagship product, Storyteller OS, provides an all-in-one writing system that enables users to manage plots, characters, world-building, and more within Notion, eliminating the confusion and overwhelm that often come with creative writing projects. In addition to the core system, StoryFlint features a variety of tools such as a Writing Habit Tracker and an AI Character Builder, along with a library of guides and articles that support writers at every stage of their journey.

This service is ideal for writers of all experience levels who want to streamline their creative process, overcome writer’s block, and bring structure to their storytelling. Affiliates will find StoryFlint to be an appealing choice to promote due to its practical, easy-to-use templates, proven track record of helping thousands of writers, and strong value proposition for anyone looking to boost their productivity and finally finish their writing projects.

Simple Signature is a minimalist email signature editor designed to create clean, professional signatures that are compatible across all email platforms. By focusing on simplicity, it avoids font inconsistencies and unnecessary elements, using just one image to ensure your signature always looks polished and cohesive. The tool allows users to generate a signature quickly and easily, eliminating the hassle of complicated formatting or technical issues.

This service is ideal for professionals, freelancers, and businesses seeking a reliable, straightforward way to present their contact information in emails without distractions or formatting problems. Affiliates will find Simple Signature appealing to promote because it solves a common pain point, offering a free, user-friendly solution that delivers consistent results and enhances users' professional image with every email they send.

Shakespeare Toolbar is a versatile AI-powered Chrome extension designed to elevate your writing and reading experience across any website, including Google Docs and social platforms like LinkedIn and Twitter. With a one-time purchase, users can access features such as instant rephrasing for improved readability, text summarization, grammar and spelling correction, and the ability to simplify content into easy-to-digest bullet points. The toolbar also streamlines communication by enabling quick, friendly, and polite responses for emails or customer support, all without the need to switch between tabs or external tools. Supporting a wide array of languages, Shakespeare Toolbar makes AI assistance accessible and efficient for users worldwide.

This tool is ideal for content creators, professionals, students, and anyone who wants to write smarter, faster, and more efficiently online. Affiliates will find Shakespeare Toolbar an attractive product to promote due to its broad appeal, lifetime value at a competitive one-time price, and practical benefits that enhance productivity and communication for users in any industry or language.

Saylo is a comprehensive platform designed to help product teams, founders, and indie hackers collect, organize, and act on customer feedback. It streamlines the entire feedback process by offering embeddable in-app widgets for gathering suggestions, bug reports, and feature requests directly from users. With tools for categorizing feedback, allowing users to vote on priorities, and building a feedback community, Saylo empowers teams to make data-driven decisions about their product roadmaps. Additionally, the platform enables teams to keep users engaged and informed through beautifully crafted changelogs and automated update notifications across email, RSS, and social media channels.

Ideal for SaaS businesses, startups, and digital product teams looking to build better products with their users, Saylo makes it easy to close the feedback loop and foster transparency. Affiliates will find Saylo an attractive choice to promote thanks to its competitive pricing, user-friendly features, and strong appeal to organizations aiming to enhance customer trust, improve retention, and streamline their product development workflows.

ResumeDive is an AI-powered platform designed to help job seekers create and optimize resumes that stand out to recruiters and meet specific job requirements. By leveraging advanced artificial intelligence, ResumeDive offers tools such as an AI resume builder, keyword analysis tailored to job descriptions, ATS-friendly templates, and the ability to generate unique resumes and cover letters for each application. The process is streamlined and efficient—users simply upload their existing resume and job description to receive personalized recommendations, enabling them to quickly produce targeted, hirable resumes in just minutes.

This service is ideal for professionals at any stage of their career who want to gain a competitive edge in the job market, from entry-level applicants to experienced industry veterans. ResumeDive is also a strong choice for affiliates to promote because it addresses common pain points in the job application process, saves users significant time, and increases their chances of landing interviews by delivering high-quality, tailored resume solutions.

Releases is a straightforward changelog software designed to help businesses, developers, and product teams efficiently communicate product updates, new features, and bug fixes to their customers and stakeholders. With a clean, intuitive interface and a powerful editor supporting images, code examples, and an AI assistant, Releases makes it easy to create and publish detailed release notes. Users can customize their changelog to match their brand, utilize custom domains, and notify subscribers through email or an on-page widget. The platform offers features like unlimited entries, team members, subscribers, post scheduling, GitHub sync, API access, regular backups, and a 99.9% uptime guarantee—all for a one-time, affordable payment with no recurring fees.

This tool is ideal for SaaS companies, software developers, IT teams, and any organization seeking a reliable way to keep their user base informed and engaged with ongoing product development. Affiliates will find Releases a compelling product to promote due to its simplicity, transparent pricing, lifetime access, and its value in building user trust through consistent, transparent communication. Its focus on ease of use, brand customization, and strong customer support make it an appealing choice for teams looking to maintain professional and effective changelogs without unnecessary complexity.

Recurrr is an email automation tool designed to help users effortlessly send recurring emails from their existing Gmail, Outlook, or other email accounts. With an intuitive interface and quick five-minute setup, Recurrr allows you to schedule emails to be sent automatically at intervals you define, turning repetitive communications into a streamlined, hands-off process. Its powerful natural language processing feature makes setting up complex schedules easy, while a calendar view offers clear visibility into your upcoming automated messages. All emails are sent securely using AES-256 encryption, with a privacy-first approach that ensures no access to your inbox or contacts.

This service is ideal for managers, entrepreneurs, sales professionals, team leaders, and anyone looking to replace routine meetings or reminders with automated emails. It's also perfect for individuals seeking accountability for recurring tasks. Affiliates will find Recurrr appealing to a broad user base thanks to its simplicity, privacy focus, affordable pricing, and compatibility with any modern browser—making it a valuable, easy-to-promote solution for boosting productivity and saving time.