The developers are aware of this and now have added the following to the top of the store description: Try and play it on an iPad 2 and it’s almost impossible – it’s laggy, buggy and crashes frequently.
Unfortunately, the app wasn’t limited to only compatible devices it seems when it was released. For those on older devices, the game will often crash mid-mission, on saving and on trying to open the map. The App Store reviews for GTA Liberty City Stories on iOS are flooded with complaints about the game crashing. Update: for the ‘Calm Before The Storm’ crash, read our workaround here.