FreeMilk vs. Bolt.new: A Browser IDE or a Free Coding Agent in Your Pocket?

Bolt.new builds web and Expo apps in a browser tab on token-based plans, while FreeMilk builds websites, backends and native Swift apps from your iPhone, free.

The FreeMilk and Bolt.new logos standing side by side in a sunset meadow, with vs. between them.

Bolt.new put an AI agent inside a full development environment in your browser tab: prompt it, watch it scaffold a project and see the result in a preview pane. It's fast, impressive and firmly rooted in the JavaScript ecosystem. FreeMilk starts from a different place, the phone in your hand, and builds websites, backends and truly native iOS apps there, for free.

The short answer.

Bolt.new is a browser IDE that builds web apps and, through Expo, React Native mobile apps, on token-based plans with a free tier. FreeMilk is a free iPhone app with a coding agent that builds websites and backends in built-in JavaScript and Python environments, and native Swift apps on remote Macs, streamed back to your phone as a live simulator. If you want a desktop browser IDE, Bolt is excellent. If you want to build anywhere, including native iOS, without a bill, FreeMilk is.

A split scene. On the left, a laptop on a desk shows a browser development environment with a chat, code and a preview. On the right, an iPhone stands in a sunset meadow showing the FreeMilk app.
Bolt.new runs in a desktop browser tab; FreeMilk's whole loop runs from your iPhone.

At a glance.

Compared FreeMilk Bolt.new
Where you build An app on your iPhone A desktop browser tab
Websites Yes, previewed on your phone Yes, previewed in a browser pane
Mobile apps Native Swift and SwiftUI React Native through Expo
iOS preview The real iOS simulator, streamed to your phone A companion runtime
Backends JavaScript and Python environments JavaScript in the browser
Price Free, with an ad-supported daily model allowance Token-based plans with a free tier

What Bolt.new is great at.

For web apps, Bolt is a legitimately fast way to go from idea to deployed URL, with the code visible and editable the whole time. For mobile, it leans on Expo and React Native: you preview through a companion runtime and ship through the React Native pipeline. If you live in the JavaScript world and want one workflow for web and mobile at a desk, that coherence is the draw.

Where FreeMilk is different.

  • It's free. A daily allowance of coding models, covering GLM, ChatGPT and DeepSeek, refills every day and is paid for by ads. You never watch a token meter run down.
  • Native output for iPhone. FreeMilk writes Swift and SwiftUI compiled by Apple's toolchain, the same kind of project a professional iOS developer would hand-write, instead of JavaScript running on a bridge.
  • A real simulator, not a shim. FreeMilk builds on a remote Mac and streams the actual iOS simulator to your phone, live and tappable.
  • More than JavaScript. Built-in execution environments run JavaScript and Python, so websites, APIs and scripts all work in the same app.
  • Where you work. Bolt assumes a desktop browser. FreeMilk's whole loop runs from your iPhone, and the agent lives in your Dynamic Island, showing exactly what it's doing while it works.
  • Your code is yours. Projects live on your phone, every file is yours to read and change, and Swift projects export as a complete Xcode project.
Two iPhones in a meadow: one showing a bakery website in Safari, the other a native SwiftUI app with a Today list and a tab bar.
Both from the same app: a website previewed on your phone, and a native SwiftUI app in the real iOS simulator.

A browser tab is a fine place to build a website. An iPhone app deserves to be built, previewed and felt on an iPhone, and FreeMilk does both from the same pocket.

What does it cost?

Bolt meters AI usage in tokens, with a free tier and paid plans for regular use. FreeMilk is free: ads fund a daily model allowance, and you can connect your own ChatGPT subscription to use your plan. You can compare yearly costs across popular tools in the cost chart on our homepage. Publishing an iPhone app to the App Store still requires an Apple Developer Program membership.

Which should you choose?

If your target is the web, you work at a desk, and you specifically want the Expo workflow and its cross-platform trade, Bolt is a capable environment. If your target includes the App Store, you care that the result feels native, and you'd rather not pay for tokens, FreeMilk removes the reasons to settle: native Swift, a real simulator in your hand, websites and backends alongside, and no Mac or bill anywhere in the loop.

Frequently asked questions.

Can Bolt.new build iOS apps?

Bolt can scaffold React Native apps through Expo, which run on iOS through a JavaScript bridge. FreeMilk builds truly native Swift apps with Apple's toolchain instead.

Do I need a computer for either tool?

Bolt is designed for a desktop browser. FreeMilk needs no computer to build: prompting, previewing and iterating all happen on your iPhone, and Swift projects compile on remote Macs.

Can FreeMilk run Python?

Yes. FreeMilk has built-in execution environments for Python and JavaScript, so you can build and run backends, APIs and scripts as well as websites and iPhone apps.

Is FreeMilk really free?

Yes. Ads pay for a daily allowance of coding models. There's no subscription and no per-token bill.

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