01
Focus on the collection you choose
The Alpha 0.2.19 preview remembers a card game or collectible category and shows its subtotal and valued-copy count. This test library has Magic selected; the overall library count stays visible.
VALKAERION / Collections
Collector’s Keep
Every find. One place.
Collector’s Keep brings cards, comics, Funko Pops and custom collectibles into one Android library. Keep track of the copies you own, what you paid and where they belong, with photos, binder layouts and a portfolio overview. Formerly Sleevekeep.
Android · Cards, comics, Funko Pops & custom collectibles
Invite-only Android alpha · Development preview 0.2.19
Invite-only Android alpha. A new installation needs a one-use activation code and an initial online activation; your collection then works offline.
Follow developmentINSIDE COLLECTOR’S KEEP
Your library, your portfolio, your way.
Alpha 0.2.19 development preview, captured on 22 October 2026 using test data. These screens show the upcoming portfolio selector and simplified Settings. The download page currently offers Alpha 0.2.18; check it for the latest published build. Sample amounts are not live valuations.
02
See the breakdown by category
Choose all collectibles or a category present in your library. This test collection shows Pokémon, Magic, Comics and Funko Pops, with currencies and unvalued items identified separately.
03
Find the setting you need
The Alpha 0.2.19 preview brings everyday preferences, import and backup, account and sync, and help into a short menu. Advanced tools have their own screen.
Find
Review
Organise
Keep
A home for the whole collection
Keep different kinds of collectibles together without losing the details that make each copy yours.
- Add cards, comics, Funko Pops and custom collectibles with photos, edition details and condition notes.
- Review card matches from camera or gallery images, or browse the catalogue by name.
- Record quantities, purchase costs, currencies and personal values; track sales, trades and gifts.
Understand your portfolio
See what contributes to the total, with pricing details available when you need them.
- Portfolio, collection and deck values use your custom value first, then available provider references.
- Review pricing coverage and refresh status, with purchase costs and explanations under Value details.
- The 0.2.19 preview adds a remembered selection by card game or collectible category, with matching subtotals.
- Live comic and Funko market pricing is not connected. Provider estimates are not adjusted for condition or grading.
Organise it your way
Connect your digital library to the collection on your shelf.
- Group collectibles into collections and arrange cards in digital binders.
- See missing-card positions and assign owned cards to physical binder slots.
- Keep copies and ownership separate from the lists and layouts in which they appear.
Keep your collection with you
Use your collection offline and choose how to back it up or connect your devices.
- Export collection records and photos, then review changes before restoring a backup.
- Optional account-based sync starts when you choose Sync now; it requires a separate cloud-account invitation.
- The 0.2.19 preview groups Settings into focused screens for games, prices, backup, sync and help.
THE IDEA BEHIND THE PROJECT
Your collection, together.
A useful record of the things you enjoy collecting: what you own, where it belongs and the history behind each find. Collector’s Keep keeps the physical collection at the centre of the experience.
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