UPDATE: There is now a way to limit the image cache size. Go to iOS Settings>iGIS>Map Display and specify the number of tiles the application will cache.
In order to maintain high performance when panning around your map, iGIS creates a cache of the maptiles.
This cache grows over time, and while it is limited to 1000 maptiles (it will probably only ever reach 450MB), you may find that you need to regain some of that space for various reasons.
Currently, we do not have a feature within the app itself to clear the cache, however, you can do this manually by using the iExplore software.
Please follow these instructions in order to clear the cache.
Download iExplorer http://www.macroplant.com/iexplorer/ (or similar)
- Using iExplore, with your iPhone/iPad connected to your computer, navigate to: <*Your Device Name*>\Apps\iGIS\Library\Caches
2. Delete the RMTileCache.db file
3. Disconnect your device
4. Run the application – the RMTileCache.db file will be recreated, and will gradually increase as you use iGIS. You may need to repeat these steps again.