Crystal Depths
Email [email protected] and you will get a reply. Please mention your iOS version and the layer number if the problem is with a particular level.
Open the Store from the depth map and tap Restore purchases at the bottom. That re-applies everything this Apple Account owns. Coin packs are consumables and are credited the moment the purchase completes; if a purchase was interrupted, the App Store retries it the next time you open the app.
Progress is stored only on the device and is not backed up to a server, so deleting the app deletes it. Purchases of skins, themes and the supporter pack are tied to your Apple Account and always come back with Restore purchases.
Every attempt is a fixed deal, so a restart gives you a fresh one — restarts are free and unlimited. The Hint button names the pattern first and shows the exact cells on a second press. Boosters are earned from the daily puzzle, star chests and a free daily gift.
Settings has colour-vision presets that recolour the crystals themselves, optional letters on crystals, reduce motion, tap-to-swap instead of swipes, and a haptics switch. Everything is labelled for VoiceOver.