Mobile app · Free

Best AI builder for a mobile app on a free plan

Ranked for a beginner who can follow a change, then split by where they want to work. The same weights run the homepage quiz.

No tool in this set is a strong match for a mobile app. The closest browser pick is Replit. The closest editor pick is Google Antigravity.

Honest limit: none of these tools strongly fit a mobile app. The names below are the closest paths, and each card says what they will not do. A native store build or a real game engine is still outside this set.

Browser builder, I can follow a change

Best fit

Replit

A browser IDE and agent, closest thing here to an all-in-one starter.

fit / 100

Start on Starter · Free Verified

Honest limit: You can build a mobile-style web app. Replit does not ship native store binaries.

Daily Agent credits and Free Mode with a daily cap, a built-in database, and one published project. The pricing page does not state one universal credit number.
The sweet spot: an IDE you do not have to install, with an agent when you get stuck.
The IDE is in the browser, which matches this preference.

Pricing and limits Official site

Also consider · 2

Bolt.new

A browser builder with a generous free token pool and a $25 Pro plan.

fit / 100

Start on Free · Free Verified

Honest limit: Bolt hosts websites and web apps. It does not produce store binaries.

1 million tokens per month and a 300,000 token daily cap. Public and private projects, Bolt branding, and a 10MB upload limit. Direct edits in Code view do not spend tokens.
A good middle: generate in the browser, then hand-edit in Code view without spending tokens.
This is a browser builder, which is the preference you picked.

Pricing and limits Official site

Editor or CLI, I can follow a change

Best fit

Google Antigravity

A free agent IDE, with higher quotas on Google AI Pro and Ultra.

fit / 100

Start on Individual · Free Verified

Honest limit: It can work in a mobile repo. Store submission is not part of the product.

Free. Unlimited Tab completions and Command requests, Gemini models, and a weekly agent quota. The quota is not a published prompt count. It refreshes weekly, not every five hours.
A practical free editor if you can follow the agent's changes.
It matches an editor preference, and the free tier is actually usable.

Pricing and limits Official site

Also consider · 2

GitHub Copilot

An IDE assistant at $10 a month, if you already live in GitHub.

fit / 100

Start on Free · Free Verify

Honest limit: Helpful inside an IDE once a mobile project exists. It does not publish to the stores.

Free is real, with a tight cap. The plans FAQ still says 2,000 completions and 50 chats. A later billing post describes limited completions plus limited chat and agent usage. Confirm the live counter. The price is marked verify, so confirm the live card before you pay.
Approachable in VS Code if you can accept and reject suggestions.
It matches an editor workflow, and completions on paid plans do not spend credits.

Pricing and limits Official site

If you do not want to read code

The order changes. Editor tools drop, even when they are famous.

1. Bolt.new · fit 72 — Bolt hosts websites and web apps. It does not produce store binaries.
2. Replit · fit 69 — You can build a mobile-style web app. Replit does not ship native store binaries.
3. Lovable · fit 67 — It builds websites and web apps, not App Store or Play Store binaries.

If you already develop

Editor and CLI tools move up. Browser builders stay useful for a first UI pass.

1. Google Antigravity · fit 78
2. GitHub Copilot · fit 73
3. Jules · fit 68

Compare Replit and Google Antigravity