FlutterLocalisation vs POEditor: Specialized vs Multi-Format Localization
POEditor is a popular translation management platform supporting dozens of file formats. FlutterLocalisation is built specifically for Flutter. Which approach is better for your Flutter app?
Quick Comparison
| Feature | FlutterLocalisation | POEditor |
|---|---|---|
| Built for Flutter | Yes (Flutter-first) | No (multi-format) |
| Free tier | Yes | Yes (1,000 strings) |
| Starting price | $9/month | $14.99/month |
| AI translation | Yes (Flutter-aware) | Yes (OpenAI, Gemini, Claude) |
| Git integration | GitHub, GitLab, Bitbucket | GitHub, GitLab, Bitbucket, Azure |
| ARB support | Native primary format | One of 25+ formats |
| File formats | ARB only | 25+ formats |
| Contributors | Role-based | Unlimited (all paid plans) |
What Is FlutterLocalisation?
FlutterLocalisation is a localization tool built exclusively for Flutter developers. It focuses on one thing: making Flutter ARB localization effortless.
Key strengths:
- Flutter ARB as the native format
- AI translations that understand Flutter syntax
- Visual side-by-side editor
- Automatic placeholder validation
- Git-based workflow
What Is POEditor?
POEditor is a translation management system supporting 25+ localization file formats. It's used by companies like Bosch, UNICEF, IKEA, and Adidas.
Key strengths:
- Multi-format support (JSON, XLIFF, PO, ARB, etc.)
- AI translation via OpenAI, Gemini, Claude
- Unlimited contributors on all plans
- Workflow automation
- Open source project support
Pricing Breakdown
FlutterLocalisation Pricing
| Plan | Price | Highlights |
|---|---|---|
| Free | $0 | Core features, limited projects |
| Pro | $9/month | Unlimited AI translations |
| Team | $29/month | Full collaboration |
POEditor Pricing
| Plan | Monthly | Yearly | String Limit |
|---|---|---|---|
| Free | $0 | $0 | 1,000 |
| Start | $14.99 | $12.74 | 3,000 |
| Plus | $44.99 | $38.24 | 10,000 |
| Premium | $119.99 | $101.99 | 30,000 |
| Enterprise | $199.99 | $169.99 | 100,000 |
POEditor's advantage: All features included in all paid plans—no feature gating.
FlutterLocalisation's advantage: Lower price point, Flutter-optimized workflow.
Detailed Feature Comparison
1. Flutter ARB Support
FlutterLocalisation was designed around ARB:
{
"@@locale": "en",
"greeting": "Hello, {name}!",
"@greeting": {
"description": "Welcome greeting",
"placeholders": {
"name": {
"type": "String",
"example": "John"
}
}
}
}
Features built for ARB:
- Placeholder validation across all locales
- ICU message format support (plurals, gender, select)
- Metadata preservation
- Direct
flutter gen-l10ncompatibility
POEditor supports ARB as one of 25+ formats:
- JSON, XLIFF, PO/POT, iOS Strings, Android XML
- ARB import/export works, but isn't the focus
- May require configuration for optimal Flutter output
- Generic UI not optimized for ARB workflows
Winner: FlutterLocalisation — Native ARB support beats generic.
2. AI Translation
POEditor offers impressive AI options:
- OpenAI (GPT models)
- Google Gemini
- Anthropic Claude
- Available on free tier!
FlutterLocalisation provides:
- Context-aware AI trained for Flutter
- Understands
{placeholder}syntax - Preserves ICU message format
- Learns from your project
Analysis: POEditor gives you choice of AI providers. FlutterLocalisation gives you Flutter-optimized AI. If you're building Flutter apps, specialized AI often produces better results than generic AI with more options.
Winner: Tie — Different approaches, both effective.
3. Multi-Platform Support
POEditor shines here:
Supported Formats:
├── Mobile: ARB, iOS Strings, Android XML
├── Web: JSON, i18next, Angular
├── Desktop: Qt TS, .NET RESX
├── Standard: XLIFF, PO/POT, CSV
└── And more...
If you build iOS native + Android native + Flutter + Web, POEditor handles all your projects in one place.
FlutterLocalisation focuses exclusively on Flutter ARB. This is a limitation if you have multi-platform needs, but an advantage if you only build Flutter apps.
Winner: POEditor — If you need multiple formats. Winner: FlutterLocalisation — If you only use Flutter.
4. Team Collaboration
POEditor:
- Unlimited contributors on all paid plans
- No per-seat pricing
- 5 contributors on free tier
- Tags, comments, screenshots
- Workflow automation
FlutterLocalisation:
- Role-based access (Developer, Translator, Reviewer)
- Real-time collaborative editing
- Comment threads
- Activity tracking
Winner: POEditor — Unlimited contributors is generous.
5. Git Integration
Both platforms offer solid Git integration:
FlutterLocalisation:
- GitHub, GitLab, Bitbucket
- Two-way sync
- Automatic ARB updates
- PR-based workflows
POEditor:
- GitHub, GitLab, Bitbucket, Azure DevOps
- Webhooks and callbacks
- PR presets
- API automation
Winner: Tie — Both handle Git workflows well.
6. Quality Assurance
POEditor provides:
- Automated QA checks
- Proofreading options
- Translation memory
- Glossary management
- Project statistics
FlutterLocalisation offers:
- Placeholder validation
- Missing translation detection
- ICU syntax validation
- Character length warnings
Winner: POEditor — More comprehensive QA tools.
7. Open Source Support
POEditor offers free unlimited access for open source projects with OSI-approved licenses. This is a significant benefit for the community.
FlutterLocalisation offers free tier for small projects but no specific open source program.
Winner: POEditor — Great for open source maintainers.
Use Case Scenarios
Scenario 1: Flutter-Only Startup
Recommendation: FlutterLocalisation Pro ($9/month)
You're building a Flutter app with 15 languages. You need:
- AI translations
- Git sync
- Team collaboration
FlutterLocalisation's Flutter-optimized workflow saves time. POEditor would work, but you'd pay more ($14.99+) for features you don't need.
Scenario 2: Cross-Platform Agency
Recommendation: POEditor Plus ($44.99/month)
You build Flutter apps, React Native apps, and websites. You need one platform for all projects. POEditor's multi-format support is essential.
Scenario 3: Open Source Flutter Package
Recommendation: POEditor (Free for OSS)
You maintain a popular Flutter package and need translations. POEditor's open source program gives you unlimited free access.
Scenario 4: Solo Developer with Side Project
Recommendation: FlutterLocalisation Free
You're building a personal Flutter app. Start free, get AI translations, export ARB files. Upgrade only when needed.
Migration Guide
From POEditor to FlutterLocalisation
- Export translations from POEditor as ARB format
- Create project in FlutterLocalisation
- Import ARB files
- Connect Git repository
- Continue workflow
From FlutterLocalisation to POEditor
- Export ARB files (or pull from Git)
- Create project in POEditor
- Import ARB files
- Configure Flutter ARB export settings
- Set up Git integration
Both use standard ARB format—migration is straightforward.
Cost Comparison: Annual Spend
Small Project (3,000 strings, 10 languages)
| Platform | Annual Cost |
|---|---|
| FlutterLocalisation Pro | $108 |
| POEditor Start | $152.88 (yearly) |
Savings with FlutterLocalisation: $45/year
Medium Project (10,000 strings, 20 languages)
| Platform | Annual Cost |
|---|---|
| FlutterLocalisation Team | $348 |
| POEditor Plus | $458.88 (yearly) |
Savings with FlutterLocalisation: $111/year
Large Project (30,000+ strings)
| Platform | Annual Cost |
|---|---|
| FlutterLocalisation Team | $348 |
| POEditor Premium | $1,223.88 (yearly) |
Savings with FlutterLocalisation: $876/year
The Verdict
Choose FlutterLocalisation if:
- You build Flutter apps exclusively
- You want Flutter-optimized AI translations
- You prefer simpler, focused tooling
- You want lower costs
- You don't need 25+ file formats
Choose POEditor if:
- You work with multiple platforms/formats
- You maintain open source projects
- You need unlimited contributors on a budget
- You want choice of AI providers (GPT, Gemini, Claude)
- You're already using POEditor for other projects
The Bottom Line
POEditor is a solid, feature-rich TMS that happens to support Flutter ARB.
FlutterLocalisation is a Flutter localization tool that does one thing exceptionally well.
If Flutter is your focus, the specialized tool usually wins. If you need platform flexibility, the multi-format tool makes sense.
Ready to try Flutter-first localization? Start free with FlutterLocalisation — AI translations, Git sync, and ARB workflow optimized for Flutter developers.