App Builder Agent's free plan costs $0 and needs no card: you sign in with Google, the AI agent builds your first app from your description, it runs in the emulator preview, and you get a free Android APK download. Asking the agent for more changes after that first build, starting more projects, unlimited APK builds, signed Play Store builds and source export come with the paid plans, which start with Member at $1.49 per 30 days (2.5M AI tokens, no automatic renewal). Among AI app builders, it is one of the few free plans that ends in an installable APK rather than a web preview.
Free plans compared (checked October 22, 2026)
What each builder's free plan lets you do, and where its paid plans start. Prices are the lowest publicly listed paid plan at the time of writing, in US dollars; "billed yearly" is the monthly equivalent of an annual plan. Check each vendor's pricing page before you pay.
| Tool | What it builds | Android APK | iOS | Free plan | Paid plans start around | Best for |
|---|---|---|---|---|---|---|
| App Builder Agent | React Native or Flutter Android apps, websites, games | Yes, a free APK download; unlimited and signed builds on paid plans | No (export the source on a paid plan, build with Xcode) | First app built by the agent, a free APK download, no card | $1.49 per 30 days (Member) | An Android app from a description, for non-developers |
| Lovable | React web apps | No | No | 5 build credits a day, up to 30 a month | $25/month (Pro) | Polished web apps and SaaS prototypes |
| Bolt.new | Web apps; Expo mobile projects | Only by running Expo's EAS build yourself | Only through EAS yourself | 1M tokens a month (300K a day), Bolt badge on published sites | $25/month, or $18 billed yearly (Pro) | Fast web prototypes |
| Replit | Full-stack web apps; Expo mobile apps | No built-in Google Play publishing yet | App Store and TestFlight publishing built in | Daily Agent credits; 1 published app that stops after 30 days | $20/month, or $18 billed yearly (Core) | Web plus iPhone from one workspace |
| Base44 | Web apps with a built-in backend | Store AAB that wraps the web app, from the Builder plan | IPA that wraps the web app, from the Builder plan | 25 message credits a month (5 a day), up to 5 apps | $20/month, or $16 billed yearly (Starter) | Internal tools and small web apps |
| Emergent | Full-stack web apps and Expo mobile apps | APK and AAB on paid plans only | TestFlight builds on paid plans only | A small credit grant; no publishing or native builds | $20/month, or $17 billed yearly (Standard) | Full-stack web apps with a Python backend |
| Rork | Native iPhone, Android and web apps | Download APK on paid plans | App Store publishing on paid plans | Design mode only (5 design credits a day); no working app | $20/month (Pro) | iPhone-first founders |
| FlutterFlow | Visual editor that generates Flutter | From the Basic plan | From the Basic plan | 2 projects, 5 AI generations in total, web publishing only | $39/month, or $29.25 billed yearly (Basic) | Visual building with real Flutter code |
| Thunkable | Native mobile and web apps with blocks and AI | APK and AAB builds; store publishing from the Builder plan | Store publishing from the Builder plan | 3 public projects, 5 screens each, 2,000 AI tokens | $19/month (Accelerator) | Students and classrooms |
| MIT App Inventor | Android and iOS apps with blocks | Yes, free | Yes, with an Apple developer account | Everything is free and open source | No paid plan | Learning to build apps with blocks |
- Best free plan for an Android APK from a description: App Builder Agent. The free plan ends with an APK on your phone, not only a preview.
- Best free plans for web prototypes: Bolt.new (1M tokens a month) and Lovable (up to 30 build credits a month).
- Completely free, if you build it yourself: MIT App Inventor, with blocks instead of prompts. Kodular's free plan also builds APKs, with limits; see Kodular alternatives.
- Free iPhone apps: no AI builder publishes to the App Store on a free plan, and Apple's Developer Program costs US$99 a year whichever tool you use.
What App Builder Agent's free plan includes
- Your first app, built by the agent. Describe it in plain English; the agent writes the code (React Native by default, or Flutter) and the app runs in the emulator preview next to the chat, where you can tap through every screen.
- A free APK download. Install the app on your own Android phone and show it to people. It is one download, so make it when the first version looks right in the preview.
- No card and nothing to cancel. Sign in with a Google account and start. Nothing renews.
- The allowance listed on the pricing page is 500K AI tokens a month; in practice it is sized for building and trying that first app.
What needs a paid plan: asking the agent for more changes after the first build, starting a second project, more APK builds, signed APK and AAB builds for Google Play, exporting the source code, publishing a website to a live link, and making an app's backend API public. When you reach one of these, the builder says so and shows the plans; your first app stays in your account and keeps running in the emulator preview. The free first app is one per person: a second free account on the same browser does not get another.
App Builder Agent's plans side by side
Prices are in US dollars per 30 days, as shown on the site on October 22, 2026; they can change, and the pricing page always has the current numbers. Payment is by card internationally or by UPI in India, and paid plans are one-time payments for 30 days with no automatic renewal.
| Plan | Price per 30 days | AI tokens | Android APK builds | Signed store builds | Source export | Best for |
|---|---|---|---|---|---|---|
| Free | $0, no card | 500K a month, sized for your first app | A free APK download | No | No | Trying the agent on your first app |
| Member | $1.49 | 2.5M | Unlimited | Yes | Yes | Finishing one small app, publishing it, owning the code |
| Pro | $5.72 | 20M | Unlimited | Yes | Yes | Building regularly, or a larger app with a backend |
| Max | $11.01 | 100M | Unlimited | Yes | Yes | Heavy daily use across many projects |
Two things worth noticing. First, the step from Free to a paid plan is what turns a first version into a finished app: the agent keeps working on it, builds are unlimited, and you can make the signed store build and take the code away. Second, the paid tiers differ only in AI allowance; every paid plan includes the same features.
What a token buys in practice
An AI token is a unit of model usage. Everything the agent reads and writes counts: your message, the parts of the project it reads to understand it, and the code it writes. Numbers below are typical rather than guaranteed, because a long conversation about a big project costs more per message than a short one about a small project.
- A first version of a small app (three to five screens from one prompt): usually well under the free allowance.
- A small change ("make the total bold and add a currency selector"): a few thousand tokens.
- A bigger feature (add accounts and a hosted backend to an existing app): tens of thousands.
- A small app built and adjusted until it is finished: a few hundred thousand tokens, which is why Member's 2.5M finishes most small apps.
- A bigger app with a backend, over its life: a few million, which is what the bigger plans are for.
Tokens go faster when the agent has to read a large project to make a change, so keep projects focused: one app per project. Short, precise messages also cost less than long rambling ones.
Who each plan is for
- Free: you want to see whether describing an app in English produces the app you have in mind. Build it, install it on your phone, show a friend.
- Member ($1.49): you are going to finish and publish one app. Store builds, testers, version bumps and fixes need build after build, and export matters if you want a backup of the code or plan to build for iOS yourself.
- Pro ($5.72): you are building something with accounts, a hosted backend, many screens and a lot of iteration, or several apps at once.
- Max ($11.01): you build every day across many projects.
For context on what the same app would cost by other routes, the app cost guide compares agencies, freelancers and no-code tools, and the app cost calculator adds up store fees, hosting and your own time. A wider comparison of builders is in best AI app builders in 2026.
How to get the most out of the free plan
- Write five bullet points before your first message. Screens, data, the look. The free plan builds one first version, so a clear first prompt matters more than anything else.
- Put everything important in that first message. Name the screens, what each one shows, what is saved and where, and the colors. "A budget app" leaves the agent guessing; the example below does not.
- Tap through every screen in the emulator preview before you download, so the one free APK download is a version you are happy to show.
- Sign up for Google Play early if you plan to publish; the US$25 fee and identity checks are separate from any plan here, and the signed APK and AAB guide shows what the store build needs.
An expense tracker is a good first free-plan app: it has real logic, a chart and settings, and it fits a single first build. The expense tracker guide walks through it, the expense apps in the gallery show what a finished one looks like, and the AI app builder is where you start. Start free, and pay $1.49 on the day you want the agent to keep going.
Frequently asked
Is App Builder Agent really free?
Yes. The Free plan costs $0 and needs no card: you sign in with Google, describe your app, and the AI agent builds a first version that runs in the emulator preview, with a free Android APK download. Asking the agent for more changes after that, starting more projects, unlimited APK builds, signed Play Store builds and source export are part of the paid plans, which start with Member at $1.49 per 30 days (prices checked October 22, 2026).
What is the best free AI app builder for Android?
For an installable Android APK from a plain-English description, App Builder Agent's free plan builds a first app and includes a free APK download, with no card. Most other AI builders' free plans end in a web preview: Lovable, Bolt.new and Base44 make web apps, and Rork, FlutterFlow and Emergent put APK or store builds on paid plans. If you are happy to build with blocks instead of prompts, MIT App Inventor makes APKs entirely free.
What does the $1.49 Member plan add?
2.5M AI tokens for 30 days to keep building with the agent, more projects, unlimited Android APK builds, signed APK and AAB builds for Google Play with your own package id, and export of the complete project source as a zip. Every bigger plan includes the same features with a larger AI allowance.
Do the paid plans renew automatically, and can I get a refund?
Plans do not renew automatically: each payment covers 30 days, and when the period ends your projects stay in your account and you return to the Free plan until you pay again. Payments are final and non-refundable except where the law requires otherwise, so try the free plan first to see whether the builder suits your app.
Which plan do I need to publish on Google Play?
Any paid plan. Signed APK and AAB store builds are included in every paid plan from $1.49 per 30 days. Google's own one-time US$25 developer registration is paid to Google, and new personal developer accounts must run a closed test with at least 12 testers for 14 days before production.
What is an AI token?
A unit of AI model usage. Everything the agent reads and writes, including your message, the current code and its answer, is measured in tokens. A small app with a few screens typically takes a few hundred thousand tokens to build and adjust, and a bigger app with a backend takes a few million over its life.
Can I build an iPhone app on the free plan?
No plan builds iPhone apps; App Builder Agent builds Android apps, websites and games. On a paid plan you can export the React Native or Flutter source and build the iOS version with Xcode on a Mac, which also needs Apple's Developer Program at US$99 a year.
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