Support
Write to support@numizmat.cc. Say which iPhone and which version of iOS you have, and what you were doing when something went wrong.
Questions
What is free, and what does Pro add?
The whole catalogue, collecting, the map, stats, badges, iCloud sync and CSV export are free. Numizmat Pro adds what your collection is worth by face value and metal content, five photographs per coin instead of two, and six alternate app icons.
Do I need an account?
No. There is nothing to sign up for. If iCloud is on, your collection syncs through your own iCloud account.
How does sync work?
Through iCloud. Use the same Apple Account on each iPhone and keep iCloud on for Numizmat, and your collection follows.
Is the value Pro shows what my coins would sell for?
No. Face value and metal content only — not what a collector would pay.
How do I restore a purchase?
Open Numizmat Pro in the app and tap Restore purchases. Purchases belong to your Apple Account.
How do I cancel a subscription?
Apple manages subscriptions. Open the Settings app, tap your name, then Subscriptions, then Numizmat.
How do I export my collection?
In Settings, tap Export as CSV. It is free, always.
How do I free up space?
Coin photographs download separately from the app. You can remove them in Settings → Storage.
How do I delete everything?
Delete the app. To remove the copy in iCloud as well, open the Settings app, tap your name, then iCloud → Manage Storage → Numizmat. Export a CSV first if you want to keep a record.
Which devices does it run on?
iPhone, with iOS 26.4 or later.
A coin is missing, or something is wrong.
Write to support@numizmat.cc with the coin, the set and what looks wrong. New catalogues and corrections arrive without an app update.