About the service
I make mobile applications for collectors of coins, stamps, and vinyl records — those who are tired of keeping their collection in notebooks, spreadsheets, and phone photo folders. Each collection item gets its own card: photo, condition description (wear, scratches, stamping or envelope defects), release year, print run, and any notes about the specimen's origin. These cards form not just a list, but a complete archive of the entire collection.
The main value of such an app lies in two things it does automatically: it estimates the approximate market value of the collection as a whole based on item condition and comparable market offers, and tracks which series, release, or album items are still missing — so the next purchase is a conscious decision, not random luck. I develop both the mobile app and a small server backend for it, so photos, condition assessments, and price history sync between devices rather than storing on a single phone.
I work through the entire cycle: from a brief task discussion and card structure to finished screens, testing on real devices, and app store publication. I customize the condition rating scale and cost calculation logic for the specific collection type.
What's usually included in the project:
— item card with photo, condition, and notes
— entire collection value estimation with updates when items are added
— tracking of missing series items
— catalog export, search, and filters
The main value of such an app lies in two things it does automatically: it estimates the approximate market value of the collection as a whole based on item condition and comparable market offers, and tracks which series, release, or album items are still missing — so the next purchase is a conscious decision, not random luck. I develop both the mobile app and a small server backend for it, so photos, condition assessments, and price history sync between devices rather than storing on a single phone.
I work through the entire cycle: from a brief task discussion and card structure to finished screens, testing on real devices, and app store publication. I customize the condition rating scale and cost calculation logic for the specific collection type.
What's usually included in the project:
— item card with photo, condition, and notes
— entire collection value estimation with updates when items are added
— tracking of missing series items
— catalog export, search, and filters
