# Migrating Sizze to Code: The Complete Playbook (2026)

- Tool: No-Code to Code Migrations
- Last updated: July 2026

## TL;DR

Sizze pivoted from a Figma-to-React Native code exporter to an AI-hosted product ('Sizze 3.0'). If you're on the original Figma plugin, a React Native export likely exists. If you're on Sizze 3.0, no API is documented and data export is unclear. Your migration strategy depends entirely on which product era you're on — determine this first before planning anything else. Timeline is 6–10 weeks with an agency.

## Platform status

- Status: active — Sizze is operating but has significantly pivoted. Originally a Figma-plugin that exported React Native code; now rebranded 'Sizze — AI App Builder' with built-in frontend, backend, and database ('Sizze 3.0,' app.sizze.io). SoftwareWorld (Apr 2026) notes no free version and no documented API. The pivot creates genuine uncertainty about whether the original code-export value proposition still exists in the current product.
- Migration urgency: medium
- Typical timeline: 6–10 weeks
- Typical cost: $13K–$25K (agency, fixed)

## Why migrate

Sizze's migration story is unusual: the platform's core value was always its exit path (Figma → React Native code). The pivot to an AI-hosted product may have eliminated that advantage for new users.

- **Pivot erases the original export value proposition** — Sizze's core appeal was clean Figma → React Native code generation. The new AI-hosted product (Sizze 3.0) may not offer the same export; SoftwareWorld (Apr 2026) notes no documented API, suggesting data portability has regressed.
- **No API documented for Sizze 3.0** — SoftwareWorld (Apr 2026) confirms Sizze 'does not offer an API.' For the hosted version, this means data in the built-in database may be fully locked to the platform with no programmatic export path.
- **No free tier increases switching cost** — Sizze has no free version — ongoing cost commitment with no free experimentation tier. Teams that want to evaluate a migration without canceling their subscription have no low-cost option.
- **Export ambiguity post-pivot** — Whether Sizze 3.0 permits clean React Native export is not clearly documented as of July 2026. Users on the original Figma plugin have a different exit path than users on the new hosted product — and many may not know which they're on.
- **Sparse external validation of the new product** — Limited recent reviews and minimal community discussion of Sizze 3.0 make it difficult to verify quality, stability, and the actual export mechanics of the current product.

## What you can export

Export depends entirely on product era. Original Figma-plugin users likely have React Native code to work with; Sizze 3.0 AI-hosted users face no documented API and unclear data export — the worst exit of the two paths.

| Asset | Exportable | How |
| --- | --- | --- |
| Data | no | Sizze 3.0 has a built-in backend and database with no documented API (SoftwareWorld Apr 2026). No self-service data export path is known. |
| Code | partial | Original Figma plugin exported Figma/Sizze designs to React Native code — this was the core product value. Whether Sizze 3.0 AI-hosted model still exports clean React Native is not clearly documented post-pivot. |
| Design/UI | yes | Figma file is the source of truth for original-product users. Keep your own Figma file — it is the most portable artifact regardless of product era. |
| Logic/Workflows | no | Not documented for export in either product version. |
| Users & Auth | no | Not documented for either version. Password hashes are not exported by any known mechanism. |

## Stack mapping

The migration target is React Native + Expo for mobile and Supabase PostgreSQL for the backend — whether starting from exported React Native code or rebuilding from scratch.

| Platform concept | Code equivalent |
| --- | --- |
| Sizze Figma designs (original product) | Figma file as source of truth; re-export via Anima or hand-code React Native components |
| Sizze React Native code export (original) | Expo project — run npx expo install to modernize dependencies, then extend as standard React Native |
| Sizze 3.0 AI-hosted app screens | Rebuild in React Native + Expo using Figma and screenshots as UI reference |
| Sizze 3.0 built-in database | Supabase PostgreSQL — extract via any available UI export or API access first |
| Sizze 3.0 auth | Supabase Auth with forced password reset for all users |
| App hosting and publishing | Expo Application Services (mobile) + Vercel (web components) |

## Migration roadmap

The first step in any Sizze migration is a diagnostic: which product era are you on? The answer determines whether you're doing a structured port or a full rebuild.

### Phase 1: Phase 1: Product Diagnostic and Asset Extraction (Week 1)

- Determine product era: open exports and check for .tsx/.js (React Native, original plugin) vs hosted app (Sizze 3.0)
- If original plugin: download all React Native exports and Figma source files immediately
- If Sizze 3.0: attempt any available data export (CSV, screenshot, copy-paste) from the built-in database
- Verify whether the Figma plugin is still functional post-pivot by testing an export today
- Document all screens via screenshots and Figma files — these are primary migration artifacts

> Watch out: Do not skip the diagnostic step. Choosing the wrong strategy wastes weeks of rebuild effort.

### Phase 2: Phase 2: Code Quality Assessment (Week 1–2)

- If original export exists: run npm install + expo start on the exported code — does it boot cleanly?
- Assess code quality: is it production-ready or does it need significant cleanup?
- Make port vs rebuild decision based on code quality assessment
- Inventory all screens, navigation flows, and data bindings for rebuild planning

### Phase 3: Phase 3: Backend and Auth Setup (Weeks 2–4)

- Set up Supabase project; design schema from extracted data or screen walkthroughs
- Migrate any extracted data to Supabase PostgreSQL
- Implement Supabase Auth; design password reset flow for existing users
- Set up Next.js or Supabase Edge Functions for any backend logic

### Phase 4: Phase 4: Mobile App Build (Weeks 4–9)

- Port or rebuild React Native screens in priority order
- Connect screens to Supabase backend
- Replace any Sizze-specific dependencies with standard React Native libraries
- Test on iOS and Android via Expo Go and EAS Build

### Phase 5: Phase 5: Launch and Cutover (Weeks 9–10)

- Submit to App Store and Google Play under same bundle ID if possible
- Notify users of the new app version and password reset requirement
- Decommission Sizze subscription after confirming full parity on new stack
- Monitor post-launch for 2 weeks before closing the Sizze account

## Cost paths

| Path | Cost | Timeline | Fits |
| --- | --- | --- | --- |
| DIY (with AI tools) | $0–$500 + time | 2–5 months part-time | Founders with React Native experience who are on the original Figma-plugin product and have clean exported code to start from |
| Freelancer | $4K–$10K | 1–3 months | Apps with fewer than 15 screens and an existing React Native export to work from; teams that can manage freelancer closely |
| Agency (RapidDev) | $13K–$25K fixed | 6–10 weeks | Production apps where the export path is ambiguous or Sizze 3.0 means a full rebuild is required; teams that need a fixed price and defined handoff |

## Risks and mitigations

- **Data locked in Sizze 3.0 with no documented export** — Attempt any available manual export (CSV, screenshot, copy-paste) from the built-in database now. Document data structure from the UI even if you cannot extract raw data.
- **Figma plugin deprecated or non-functional post-pivot** — Test an export from the Figma plugin today. If it no longer works, your Figma file is the only usable design artifact — keep it current and independent of Sizze.
- **React Native export code quality insufficient for production** — Run the exported code locally before committing to a port strategy. If code quality is poor, treat as a rebuild using the export as a logic reference, not a production baseline.
- **Sunk cost trap from no free tier** — Evaluate rebuild cost now — it may be less than the ongoing subscription cost plus accumulated tech debt. A fixed-price rebuild quote gives you a concrete comparison.
- **No community migration guides for Sizze** — Rely on Figma files, screen recordings, and any available exports as your primary artifacts. There is limited precedent from other teams who have migrated off Sizze.

## Stay or go

Stay if:

- You are on the original Figma-plugin product and the React Native export meets your needs and produces maintainable code
- Your Figma file is kept current, independent of Sizze, and serves as a complete backup for all design work
- App is a simple prototype or MVP where the AI-hosted Sizze 3.0 is still generating value and no production data portability is required

Go if:

- You need a guaranteed code or data export path and Sizze 3.0 cannot confirm one — no API documented means lock-in
- App is production-critical with real users and the no-API, no-export-documented situation is an unacceptable business risk
- The original Figma-export workflow is no longer available after the pivot and you're now effectively on a no-export platform
- Ongoing subscription cost without a free tier is not sustainable at current app scale

Sizze's migration story depends entirely on which product era you're on. Original Figma-plugin users have a real exit via React Native code; Sizze 3.0 AI-hosted users may face a full rebuild. Determine your product era before any other planning — it changes everything.

## Migration checklist

- Determine your product: are you on the original Figma plugin or the new Sizze 3.0 AI-hosted app? — The migration strategy is completely different for each product era. This is the single most important diagnostic step.
- If original plugin: download all React Native exports and Figma source files immediately — These are your primary migration assets. Download them now regardless of migration timeline.
- If Sizze 3.0: attempt any available data export (CSV, screenshot, copy-paste) from the built-in database — With no documented API, manual extraction may be your only data recovery option.
- Verify whether the Figma plugin is still functional post-pivot by testing an export today — If the plugin no longer works, Figma files and screenshots become your only design artifacts.
- Run the exported React Native project locally: npm install + expo start — Code quality assessment determines port vs rebuild. Do not commit to a strategy before confirming the export runs.
- Document all screens via screenshots and Figma files — These are the primary migration artifacts regardless of which product version you're on.
- Verify App Store Connect and Google Play Console account ownership — Confirm you control the store listings before the rebuild is complete — store account issues can delay launch.

## Frequently asked questions

### Can I export my Sizze app code?

It depends on which version you're using. The original Figma plugin exported React Native code — this was Sizze's core value proposition. Whether the new Sizze 3.0 AI-hosted product still provides a clean React Native export is not clearly documented post-pivot. Test an export in the Figma plugin today to check if it still works, and verify which product era your project is on.

### Does Sizze have an API for data export?

No. SoftwareWorld (April 2026) confirms that Sizze 'does not offer an API.' For Sizze 3.0 users with data in the built-in database, this means no programmatic export path is documented. Attempt any available manual export (CSV download, copy-paste) from the platform UI before starting migration planning.

### What is Sizze 3.0 and how is it different from the original product?

The original Sizze was a Figma plugin that converted designs to React Native code — a clean code-export tool. Sizze 3.0 is a rebranded AI app builder with built-in frontend, backend, and database (app.sizze.io). The two products have very different exit paths: original users likely have React Native code they can export; Sizze 3.0 users may face data and code lock-in.

### How long does migrating from Sizze take?

Expect 6–10 weeks with an agency. If you're starting from a clean React Native export from the original Figma plugin, the timeline is closer to 6 weeks. If you're on Sizze 3.0 and facing a full rebuild with manual data extraction, plan for 8–10 weeks. DIY timelines are typically 2–5 months part-time.

### What happens to my users' passwords when I migrate?

Password hashes are not documented for export from either Sizze product version. Plan a forced password reset for all users when migrating authentication to Supabase Auth. Build a reset notification email and in-app prompt into your migration launch plan — this is standard for any no-code to code migration.

### Is Sizze shutting down?

Sizze is not confirmed to be shutting down as of July 2026 — the platform is active. However, the significant product pivot from Figma-export to AI-hosted creates uncertainty about the product's direction. There is no free tier and no documented API, which means your ongoing investment carries higher lock-in risk than alternatives with cleaner export paths.

### What is the best replacement for Sizze's original Figma-to-React Native workflow?

Anima and Builder.io are documented Figma-to-code alternatives. Draftbit offers a visual mobile builder with a clean React Native code export. If you want to own the full codebase from day one, a direct Figma + React Native + Expo workflow with manual component development is the most sustainable long-term approach.

### Can RapidDev help with a Sizze migration?

Yes. RapidDev handles both scenarios: ports from original Sizze React Native exports and full rebuilds for Sizze 3.0 users. Fixed-price engagements run $13K–$25K with a 6–10 week timeline. The scoping call starts with a product era diagnostic to determine the right strategy before any work begins. Book at rapidevelopers.com.

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Source: https://www.rapidevelopers.com/no-code-to-code/how-to-migrate-sizze-project-to-code
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