Every team shipping software eventually hits the same wall: not how do I build this screen, but how should this screen work at all? What does a good onboarding feel like? Where does the upgrade prompt go? How do the apps people actually love handle permissions, empty states, and paywalls? Mobbin is the tool we reach for to answer exactly those questions, and it has earned a permanent spot in our recommendations for both developers and designers.
What Mobbin actually is
Mobbin is a curated, searchable library of real, production UI. It covers individual screens, complete multi-step user flows, and website sections captured from thousands of shipping iOS and web apps. It isn't mockups or dribbble concepts. It's how real, well-funded teams actually solved a problem in a live product. Everything is tagged and organized so you can find, say, twelve different subscription paywalls or a dozen onboarding flows in seconds.
Why developers and designers lean on it
For designers, it collapses hours of "how do others handle this?" research into a few searches, with real examples to pull from and react to instead of a blank canvas.
For front-end and mobile engineers, it's a reference for interaction and layout patterns. You can see how a flow is actually sequenced before you wire it up, so you're not inventing UX from scratch inside a component.
For founders and PMs, it's the fastest way to benchmark competitors and communicate intent. "Make it feel like this flow" beats a paragraph of description every time.
The common thread is that Mobbin turns design research from an afternoon of screenshotting apps into a few minutes of searching, and the reference is grounded in what real products ship.
The part worth getting excited about: the Mobbin MCP
Mobbin now offers an MCP server, which means you can search its entire library from inside AI-native tools and editors using plain language, without breaking flow to open a browser. It exposes three tools:
- Search screens: describe a single screen ("checkout page with a promo code field and Apple Pay") and get matching real screens back.
- Search flows: describe a journey ("onboarding with personalization steps") and get complete, ordered multi-screen flows.
- Search sections: describe a website section ("pricing page with a plan comparison table") and get matching marketing sections.
It covers both iOS and web, has a "deep" AI-powered search mode that interprets intent rather than matching keywords, and, importantly, returns the actual screenshots inline plus a canonical Mobbin link for every result.
To see it work, we asked for "onboarding with personalization steps and account setup" on iOS. It came back with the real thing: Rocket Money's 10-screen onboarding, YNAB's 20-screen account setup, and Fabric's setup flow, all actual screens, in order, each one linkable. For anyone building with an AI coding agent, this is the missing piece. You can feed the agent real, visual UI references as context without ever leaving your editor.
Pricing, and how to save on Pro
Mobbin has a free tier that's genuinely useful for browsing, and a Pro plan that unlocks unlimited access, full flows, and the heavier MCP usage that makes it worth building into your workflow. If you decide it belongs in your toolkit, a few things keep the cost down. Annual billing is the biggest standing saving, students and educators at accredited schools can get 50% off Pro for up to two years, and the easiest option is subscribing through a referral link, which takes 10% off your first billing cycle automatically.
That last one is the closest thing to a "Mobbin discount" or coupon code that actually works. Mobbin doesn't hand out public promo codes, so if you see a "Mobbin coupon" floating around, the referral link is the real version of it.
→ Start Mobbin Pro with 10% off your first cycle
There's no code to paste. The discount is tied to the link, and it applies to new Pro subscribers per Mobbin's referral terms.
Bottom line
If you build software, Mobbin is one of the easiest tools to recommend. It makes design decisions faster and better grounded, and the MCP brings that library directly into the AI workflow most of us now build in. Try the free tier, and if it clicks, the referral link keeps your first Pro cycle 10% lighter.