The digital museum of your collection
Everything you need to cover Numismatrix — on a single page.
A vault, not a cloud
Numismatrix is a mobile app for managing numismatic collections — coins, banknotes, medals, bullion, tokens, exonumia, €2 coins and mint sets. It catalogues every item with the rigour of a conservation inventory, values it against live metal rates, and protects the whole behind local encryption.
What sets it apart: nothing ever leaves the device. No account to create, no synchronisation, no data collection. The user is not the product: no advertising, no trackers, no data resold — licence sales are the only source of revenue. A deliberate choice for holdings whose discretion is part of their value. And no subscription: the app is a free download and stays free up to 99 items; beyond that, the user buys a licence once, and it is theirs for life.
The app in pictures
Click any image to download it at full resolution. All are free to reproduce in articles about Numismatrix.
The Crystal Mode
A new translucent theme reserved for Pro licences — frosted glass, reflections and depth. Six screens at mobile resolution.
A guided video tour
A filmed walkthrough of the app — adding an item, automatic valuation, statistics and export — is currently in preparation.
Three licences, no subscription
Every licence is a one-time payment granting lifetime access. 14-day money-back guarantee.
- Full cataloguing — 8 categories, 54 sub-categories
- Complete security: AES-256, PIN, biometrics, stealth mode
- Metal rates & CSV export
- Automatic backup + .nmx archive
- Collector rank — 7 tiers
- Everything in Free, 5× the capacity
- PDF export — museum catalogue & inventory
- Advanced statistics
- Day / night mode
- Item duplication & JPG sharing
- Everything in Premium, with no limits
- Certificate bundle export
- Sales tab & "sold" marking
- Crystal Pro mode · custom login background
- Licence valid on 2 devices
Direct download
The app has been available free of charge on the Google Play Store since October 2026, and is still offered as a direct download with no account to create, for anyone who would rather not use a Google account. The iOS and tablet port is planned for 2027. As the direct-channel file is distributed outside a store, Android shows a provenance warning during installation: the step-by-step procedure is covered in the guide below.
Everything you need, ready to use
Logos, icons, screenshots, promotional visuals and copy — download the full bundle or pick what you need.
✎ Copy & descriptions
Press kit — FrenchTXT Press kit — EnglishTXT Short & long descriptionsee above Technical specificationssee belowSpecifications
⬗ Architecture
Local-first100 % offline EncryptionAES-256-GCM AuthenticationPIN + biometrics Data collectednone⬗ Contenu
Categories8 + 54 sub-cat. Fields per record14 Objectives to unlock36 badges Collector ranks7 tiers🎁 Try the app for free
Journalists, content creators, numismatic societies, clubs and shops: we provide free Pro licences so you can explore the app in depth, plus promo codes to share with your community or colleagues.