The best affiliate programs like GuestLab in 2025

Kopage is an AI-powered, white-label website builder designed to help users create fully featured websites for clients in just 30 seconds. With over a decade of development behind it, Kopage offers an intuitive drag-and-drop interface, allowing anyone to build and customize professional websites without any coding or technical expertise. The platform provides a comprehensive suite of features out of the box, including SEO tools, blogs, e-commerce capabilities, contact forms, photo galleries, and analytics. Users can start with an AI-generated site or choose from pre-made templates and content blocks, ensuring both speed and flexibility in the website creation process.

Kopage is ideal for agencies, freelancers, entrepreneurs, and anyone looking to build websites quickly and efficiently for themselves or clients. Its white-label functionality and ease of use make it a compelling choice for those who want to offer website creation as a service without being bogged down by technical complexity. Affiliates will find it attractive to promote due to its broad appeal, generous feature set, and proven track record of user satisfaction, making it a valuable solution for non-technical users and professionals alike.

KAppMaker is a powerful boilerplate solution designed to help developers rapidly create and launch high-performance native mobile apps for both Android and iOS using a single Kotlin Multiplatform codebase. The platform comes packed with pre-built features such as authentication (Google and Apple), push notifications, in-app purchases and subscriptions, onboarding, in-app reviews, customizable UI themes, and robust navigation—all configured and ready to use. KAppMaker also supports fast AI integration, enabling developers to add advanced AI features like OpenAI GPT models and image generation with DALL-E, as well as secure backend management with Firebase Functions. Automated CI/CD workflows make publishing to the App Store and Google Play seamless, while comprehensive documentation and lifetime updates ensure a smooth development process for all skill levels.

KAppMaker is ideal for indie developers, small teams, and agencies looking to dramatically reduce the time and complexity of building cross-platform mobile apps. It’s especially valuable for those wanting to monetize quickly, integrate modern AI tools, and customize the user experience without reinventing the wheel. Affiliates will find KAppMaker an attractive product to promote thanks to its one-time purchase model, broad appeal among mobile developers, and strong value proposition for anyone seeking to turn app ideas into reality faster and more efficiently.

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.

InvoiceAhoy is a streamlined invoicing solution designed for developers and businesses that need to create, store, and deliver professional invoices directly from any web platform. Featuring an easy-to-use API, pre-built invoice templates, and integration options like Zapier, InvoiceAhoy takes the hassle out of invoice generation. With built-in compliance for global jurisdictions, automatic translation for localized customer communication, and secure encrypted document storage, users can quickly generate and send invoices that look great and meet all regulatory requirements.

This service is ideal for SaaS companies, online marketplaces, freelancers, and any business that needs reliable, automated invoicing integrated into their workflows. Affiliates will find InvoiceAhoy an attractive option to promote due to its developer-friendly approach, flexible pricing plans, and broad appeal for businesses seeking an efficient, compliant, and modern invoicing solution.

InPrivy is a secure platform designed for safely sharing sensitive information such as passwords, API keys, confidential notes, and files online. Unlike traditional methods like email or chat, where private data remains visible and vulnerable, InPrivy provides one-time encrypted links that ensure your information is accessible only to the intended recipient and is automatically voided after use. The platform is GDPR compliant, hosted in Germany with robust AES-256 encryption, and offers additional privacy features like customizable branding, domain options, password protection, team management, API access, and detailed usage notifications—all with a simple, intuitive interface.

InPrivy is an excellent solution for professionals and teams—such as law firms, accountants, IT companies, and agencies—who regularly need to exchange confidential data securely. Affiliates will find InPrivy appealing to promote due to its strong privacy credentials, lifetime pricing with no subscriptions, and broad appeal to businesses prioritizing data protection and compliance. Its ease of use and commitment to privacy make it a valuable tool for anyone needing to share sensitive information online without compromise.

Immoklar is a user-friendly real estate analysis tool designed for property investors in the DACH region, making it easy to evaluate the profitability and cash flow of any residential investment. In just a few minutes, users can input key figures such as purchase price, rental income, and operating costs, and receive precise calculations on returns, cash flow, and value development. The platform streamlines complex financial planning by offering automated analyses, financing simulations, and customizable checklists for property viewings. Immoklar also enables users to generate professional PDF exports for bank meetings, eliminating the need for error-prone spreadsheets and manual calculations.

This solution is ideal for new and experienced property investors, home buyers, and anyone looking to make confident, data-driven decisions in real estate. Its intuitive interface and comprehensive features remove barriers for those without financial or Excel expertise, while the web-based platform ensures flexibility and accessibility on any device. Affiliates will find Immoklar an appealing program to promote, as it addresses widespread pain points in property investment and empowers users to make smarter, more profitable decisions with minimal effort.

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.

IELTS Writing Pro is an advanced online platform designed to help users prepare for the IELTS exam by providing detailed, personalized feedback on their writing. Leveraging cutting-edge AI technology, the service offers realistic band estimations based on official IELTS grading criteria—including Grammar, Task Response, Coherence and Cohesion, and Lexical Resource—and delivers comprehensive correction reports with in-depth insights. Users can choose from over 250 practice questions or submit their own, track their progress with unlimited submissions, and receive actionable suggestions to boost their scores. The platform supports both Academic and General Training tasks and provides instant, 24/7 access to professional-level writing assessment at a fraction of the cost of traditional correction services.

IELTS Writing Pro is particularly beneficial for students, professionals, and anyone aiming to achieve a higher band score on the IELTS exam through efficient, targeted practice. Affiliates will find this product appealing to promote as it offers a valuable, cost-effective, and user-friendly solution for test-takers seeking to improve their writing skills quickly and reliably. With its generous free trial, affordable pricing, and proven ability to help users understand and meet IELTS standards, it stands out as a smart choice in the test preparation space.

HiveOtter is a referral marketing platform designed to help businesses transform their happy customers into active brand advocates. With an emphasis on automation, HiveOtter enables users to create, manage, and scale referral programs that distribute discount coupons and rewards through unique referral links. The platform features automated discount code generation, double-sided rewards to incentivize both referrers and new customers, seamless integrations with popular tools like WooCommerce, Lemonsqueezy, and Stripe, and extensive customization options to ensure brand consistency. HiveOtter also simplifies communication with customizable emails, making it easy to keep both referrers and invitees engaged throughout the referral process.

HiveOtter is an ideal solution for e-commerce businesses, startups, and online merchants looking for a cost-effective way to acquire high-quality customers through trust-based recommendations. Affiliates will find HiveOtter appealing to promote because it offers a practical, easy-to-implement system that drives organic growth, reduces customer acquisition costs, and provides flexible pricing plans to suit various business needs. This makes it a valuable tool for any business seeking to boost sales and loyalty by leveraging the power of word-of-mouth marketing.

How to Prompts Uno is a comprehensive platform designed to help users master the art of prompt engineering for AI tools such as ChatGPT, Midjourney, and more. The service offers a curated library of high-quality prompts, detailed guides, and practical examples to empower users to generate better results from AI models. Whether you're a beginner or an experienced AI enthusiast, How to Prompts Uno provides step-by-step tutorials, prompt templates, and insights into the latest advancements in generative AI, making it easier to harness the full potential of modern AI tools.

This platform is ideal for content creators, marketers, educators, developers, and anyone interested in leveraging AI for creative or professional tasks. Affiliates will find How to Prompts Uno an attractive product to promote due to its broad appeal, actionable resources, and growing demand for AI literacy. It offers tangible value to users seeking to improve their productivity and creativity with AI, making it a compelling choice for those looking to monetize audiences interested in technology, innovation, and digital transformation.