Exotool vs Betty Blocks
Betty Blocks makes the same promise as Exotool, in its own words: generate apps with prompts and own the code. It is an enterprise platform, priced for organisations with many apps and many users, with on-premises and sovereign-cloud options. Exotool makes the promise to one person as readily as to a company: design the app as a diagram, let Claude help, and take the generated code wherever you want, from a free plan.
Side by side
| Betty Blocks | Exotool | |
|---|---|---|
| What describes the app | Pages, models and logic in the Betty Blocks builders, with AI generators for UI and logic. | One diagram: the screens, how they connect, and the activities behind them. |
| How it is built | Generated on React and WebAssembly, run in containers on the platform. | A patented engine generates the device side, the server side and the APIs between them, the same way every time. |
| Where it runs | On Betty Blocks' cloud, a private or sovereign cloud, or on premises (Custom tier). | In Exotool's sandbox while you build; then on any web-capable hosting platform you choose. |
| The source code | Described as portable (open standards); no export process is described. | Yours. Exotool gives you the generated code; deploy it where you want. |
| Users | Unlimited internal, external and anonymous users, unlimited builders: no per-user charge. | No per-user charge either; priced per builder's plan. |
| AI | AI app generation and an AI agent builder, with no per-prompt charge. | Claude builds and changes the app through the Exotool connector; you see every change in the diagram. |
| Phones and tablets | Web apps. | A progressive web app that runs on iOS and Android alike, installed from the browser; no app-store build. Native iOS apps: in beta. |
| Pricing (published October 2026) | Create €1,500 a month; Scale €3,500 a month; Custom by quote. No free plan listed. | Free (one app); Basic $19 a month (three apps); Pro $49 a month (unlimited). Per builder, nothing metered. |
Betty Blocks's facts and prices are as published on its own site on October 17, 2026, and may have changed since; check there before deciding. Betty Blocks is a trademark of its owner. Exotool is not affiliated with it.
Where Betty Blocks is the better choice
- You are an enterprise that needs governance, sovereignty options and on-premises hosting with a vendor behind them.
- You are building a portfolio of apps for many departments with a team of builders.
- You want a done-for-you first project from the vendor's team.
Where Exotool is the better choice
- You are one person or a small team: Exotool starts free and the first paid plan is $19 a month.
- You want Claude as the builder, through a connector in your own Claude account.
- You want the finished app on a host of your choice, with no platform to run.
Try it
Exotool is free to start: one app, the editor, the preview, and the Claude connector. Sign up on the pricing section of the home page, or read how to build an app with Claude: connect Exotool, describe the app you have in mind, and Claude builds a first version you can open on your phone within minutes.
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