Here's the links to the store pages:
- BattleScribe Mobile (free, ad supported)
- BattleScribe Mobile Pro (£1.99, no adds, additional dice statistics tool)
I'll add these links to the BattleScribe website when I get a chance.
Note: Due to the time it takes for Amazon to approve the app, it's actually a version behind (v1.12.11). I've submitted the latest version, which has to be approved yet again, so it might be a couple of days before the update becomes available.