GeoNames: Free gazetteer of over 11 million place names. what3words: Every 3m square in the world has a unique three-word address.
| GeoNames | what3words | |
|---|---|---|
| Category | Open Geodata Sources | Geocoding, Routing & Location APIs |
| Pricing model | Freemium | Freemium |
| Starts at | Free | See website |
| Free tier | — | Free app; API plans |
| Open source | No | No |
| Software licence | — | — |
| API | — | Yes |
| Platforms | Data download, API | Web, iOS, Android, API |
| Made by | — | what3words |
| Commercial use | Allowed | Check terms |
| Export / print images | Allowed | Check terms |
| Offline / caching | Check terms | Check terms |
| Visits from MapTools | 2 | 1 |
| Visit | Visit |
GeoNames features
- Place names worldwide
- Postal codes
- Free downloads
- Web services
what3words features
- Three-word addresses
- Apps and API
- AutoSuggest
- Offline SDK
Summary based on public information. Check each provider's current pricing and terms.