Betty Blocks
A governed route for business teams working with IT.[1]
Five platforms. Different trade-offs.
Compare the cost model, the controls and the path out. The right shortlist starts with what your organisation cannot compromise on.
Last reviewed 14 October 2026 · App Build Index research
Mendix
A structured environment for a mixed development team.[1]
OutSystems
A route for complex applications owned by a delivery team.[1]
Power Apps
A practical shortlist candidate in a Microsoft estate.[1]
Lovable
A fast starting point with a conventional code handover.[1]
| Decision dimension | Betty Blocks | Mendix | OutSystems | Power Apps | Lovable |
|---|---|---|---|---|---|
| Cost model | Strong Platform fee; scope matters[1] | Partial Platform licence + delivery[1] | Weak Platform licence + delivery[1] | Strong Seats and capacity[1] | Strong Subscription + usage[1] |
| AI metering | Strong Included scope to confirm[1] | Partial Plan-dependent[1] | Weak Plan-dependent[1] | Strong Credits / capacity[1] | Strong Usage credits[1] |
| Exit & lock-in | Strong Self-serve code export (React + Wasm), June 2026[1] | Partial Specialist migration work[1] | Partial Review runtime dependencies[1] | Weak Microsoft ecosystem coupling[1] | Strong Code handover to verify[1] |
| Leave without a rebuild? | Yes. Download the full app code (React frontend, Wasm backend) self-serve, no support ticket. Standard code fits Git and CI/CD, so a team can continue it in tools such as Codex or Claude Code. Source: Betty Blocks release notes, June 2026; Betty Blocks announcement, December 2025 | Unknown. Not yet sourced; the sample model scores Mendix Partial on exit, so test an export before relying on it. Source: App Build Index sample model, October 2026 | Partly. Data and schema can be extracted, but a third-party guide reports no runnable, maintainable source export, so leaving means a rebuild. Source: RapidDev OutSystems migration guide, July 2026 | Unknown. Solutions sync to Git for Dataverse environments; no standalone runtime export is described. The sample model scores Power Apps Weak on exit. Source: Microsoft Learn, Git integration in Power Platform, October 2026; App Build Index sample model, October 2026 | Yes. Two-way GitHub sync and, on paid plans, a full codebase download; the code can be deployed outside Lovable. Source: Lovable docs, GitHub Git sync, October 2026 |
| Governance | Strong Review SSO, audit and controls[1] | Strong Structured delivery controls[1] | Strong Enterprise delivery controls[1] | Strong Microsoft tenant controls[1] | Weak Validate controls per plan[1] |
| Hosting & data | Strong Confirm EU contract scope[1] | Strong Residency and processors to verify[1] | Strong Residency and processors to verify[1] | Strong Tenant region and connectors[1] | Weak Check app and AI processors[1] |
| Deployment options |
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| Best for | A governed route for business teams working with IT.[1] | A structured environment for a mixed development team.[1] | A route for complex applications owned by a delivery team.[1] | A practical shortlist candidate in a Microsoft estate.[1] | A fast starting point with a conventional code handover.[1] |
| Not for | Your developers want to hand-write every line of code from day one.[1] | You want to avoid specialist platform skills.[1] | Your first priority is a small initial licence commitment.[1] | You need a portable runtime outside that ecosystem.[1] | You expect platform-managed enterprise controls by default.[1] |
Exit / Betty Blocks vs OutSystems
Two ways out: exported code or a rebuild.
Betty Blocks apps export as standard React and WebAssembly code. Since June 2026 the full app code downloads self-serve, with no support ticket, so a team can keep running and extending it on its own infrastructure.
Source: Betty Blocks release notes, June 2026OutSystems keeps the logic on its runtime.
A third-party migration guide reports that OutSystems apps compile to a proprietary runtime with no runnable source export. There is no maintainable code to take away, so leaving means a rebuild. Data and schema can be extracted.
Source: RapidDev OutSystems migration guide, July 2026The same guide says OutSystems itself treats the move from OutSystems 11 to ODC as a rebuild of app logic. Read how to plan the OutSystems 11 to ODC rebuild →
Score your own exit with the exit scan →Questions, answered
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Sources & assumptions
- App Build Index sample research model, 14 October 2026. Prices and scores illustrate the interface and are not verified vendor offers.
- European Commission · AI Act framework. Reviewed 14 October 2026. Apply the rules to your exact use case with qualified advice.
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