Credits
Built on open data.
Polly Track's maps come from free data and open-source software. Thanks to everyone who looks after them.
© OpenStreetMap contributors. Map data is available under the Open Database License (ODbL 1.0): openstreetmap.org/copyright. The attribution is always visible on the map in the app.
Data sources
The same ones listed in the app under "Info and credits" and in each package's manifest.
| Source | Used for | Licence | Attribution |
|---|---|---|---|
| OpenStreetMap (Geofabrik extracts) | Roads, tracks, surface, closures, places, points of interest, speed cameras | ODbL 1.0 | © OpenStreetMap contributors |
| OpenMapTiles schema (Planetiler) | Map tile structure | CC BY 4.0 | © OpenMapTiles |
| TINITALY 1.1, 10 m DEM (INGV) | Elevation, gradients, hillshade and contour lines | CC BY 4.0 | Tarquini S. et al. (2023), TINITALY/1.1, INGV, doi:10.13127/tinitaly/1.1 |
| Copernicus DEM GLO-30 | Elevation where TINITALY does not reach | Copernicus DEM GLO-30 licence | © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA |
| EUAP – Official list of protected areas (ISPRA/MASE) | Protected areas on the map and in closure reasons | CC BY 4.0 | ISPRA – Network Nazionale Biodiversità |
| Natura 2000 sites SIC/ZPS/ZSC (ISPRA) | Protected areas | CC BY 4.0 | ISPRA – Network Nazionale Biodiversità |
| MIMIT fuel prices (Osservaprezzi) | Fuel stations | IODL 2.0 | Ministero delle Imprese e del Made in Italy |
| Wikidata | Popularity and badges of points of interest (Borghi più belli, Bandiera arancione, UNESCO) | CC0 1.0 | Wikidata (CC0) |
| MET Norway – Locationforecast 2.0 | Weather along the route (downloaded by the app, only when enabled) | NLOD 2.0 and CC BY 4.0 | Data from MET Norway (Norwegian Meteorological Institute) |
The map style is derived from OSM Bright (OpenMapTiles). Data may contain errors or be incomplete: road signs and traffic law always come first.
Open-source software in the app
| Component | Used for | Licence |
|---|---|---|
| Valhalla (via valhalla-mobile) | On-device routing | MIT |
| MapLibre Native | Map rendering | BSD 2-Clause |
| Zstandard (zstd) | Package decompression | BSD |
| Flutter and Dart packages | App interface | BSD and other permissive licences |
The full list, with licence texts, is in the app: "Info and credits" › licences.
Polly
Polly the biker cat and the Polly Racing Team mark belong to Polly Track's author. Please do not use them without permission.