How do most AI SaaS tools charge (credits vs monthly subscriptions)?

Most modern AI SaaS tools use hybrid pricing: an entry-level monthly subscription that includes a fixed monthly credit quota, paired with pay-as-you-go top-ups for high-volume LLM inference and generation.

Can I find free and open-source AI tools on SaaSearch?

Yes. You can filter listings by pricing model (Free, Freemium, or Paid) and tech stack. Many makers provide 100% free open-source tiers with self-hosting instructions and MIT licenses.

How are MRR and user counts verified for AI startups?

SaaSearch integrates directly with Stripe and Paddle telemetry to verify recurring monthly revenue, growth velocity, and active users, ensuring figures are authentic rather than estimated.

How can AI developers launch their product on SaaSearch?

Founders can submit their AI application for free. Once you add the verified SaaSearch launch badge to your homepage, your listing is published immediately to today's launch leaderboard with zero queue delay.

SaaSearch - The Search Engine for SaaS and AI products

32 products for Open source Email Assistant (0.09 seconds)

SagelingAd

https://sageling.ai›ai & automation›Sageling

Sageling: The free, local AI assistant for real work on your Mac.

Sageling is a free, private, and local AI assistant designed exclusively for Apple Silicon Macs to help users get real work done. It processes... Read more

1upvote

AI Assistant Local AI Mac App

Visit site

Pen

https://pen.dev›design & creative›Pen

Pen: An agentic canvas for building bold software. - result 1

Sep 17, 2026 - Pen is an innovative agentic canvas designed for rapidly building and prototyping software. It allows users to import components from any app,... Read more

1upvote

AI Design UI/UX Design Prototyping

0pen

Stan

https://stan.store›other›Stan

Stan enables people to make living and work for themselves. - result 2

May 15, 2026 - Stan enables people to make living and work for themselves. Built with Next.js, TypeScript and Tailwind CSS.

5.0(101)809upvotes$2.8M MRR−7.6% MoM

Micro-SaaS

101stan

Open Caffeine

https://github.com›developer tools›Open Caffeine

Open Caffeine: Keep your Mac awake - result 3

Jun 1, 2026 - Open Caffeine is a native macOS menu bar app for keeping your Mac awake for a chosen duration. Pick presets, set a custom timer, toggle screen... Read more

5.0(17)164upvotes

Open Source

17github

OpenTweet

https://opentweet.com›ai & automation›OpenTweet

OpenTweet: AI-powered super simple X posts scheduler with MCP & OpenClaw integration. - result 4

May 15, 2026 - AI-powered super simple X posts scheduler with MCP & OpenClaw integration. Built with Next.js, TypeScript and Tailwind CSS.

5.0(14)112upvotes$3.3k MRR+0.3% MoM

AI & Automation Micro-SaaS

14opentweet

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Datanem
Instantly convert your documents into structured data
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Mowgli

https://mowgli.ai›design & creative›Mowgli

Mowgli: AI design canvas and tool for mobile, web and desktop apps - result 5

Sep 30, 2026 - Mowgli is an AI-powered design canvas built to help product teams design, experiment, and prototype 10x faster with rich context. It keeps your... Read more

5.0(1)1upvote

AI Design Prototyping UX/UI

1mowgli

OpenInbox.io

https://openinbox.io›ai & automation›OpenInbox.io

OpenInbox.io: Disposable email inboxes via API. Create inboxes in seconds, receive emails programmatically, and keep your real addr... - result 6

May 15, 2026 - Disposable email inboxes via API. Create inboxes in seconds, receive emails programmatically, and keep your real address private. Built for... Read more

5.0(3)28upvotes$440 MRR+10.5% MoM

AI & Automation Micro-SaaS

3openinbox

Moneypenny

https://moneypennyagent.com›ai & automation›Moneypenny

Moneypenny: Your AI team for coding and product review, on your machine, in your pocket. - result 7

Sep 20, 2026 - Moneypenny provides an AI-powered team of Claude and Codex bots that integrate directly with your local codebase. It offers product thinking,... Read more

1upvote

AI Assistant Developer Tools Code Review

0moneypennyagent

Sageling: The free, local AI assistant for real work on your Mac.

Sageling is a free, private, and local AI assistant designed exclusively for Apple Silicon Macs to help users get real work done. It processes all tasks directly on your computer, ensuring sensitive data remains private and never leaves your device unless explicitly requested. Ideal for professionals in fields like therapy, education, or general productivity, Sageling assists with tasks such as transcribing sessions, writing notes, or grading student work. This desktop application provides an ac...

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