Card artwork and card names are blurred in these captures. The app itself shows them
normally — see Trademarks & fair use for why.
No ads. No paywall. No subscription. No account. Every competitor meters something —
the scanner, price history, the export button. The Tin doesn't, and the code is here so
you can check.
The Tin is an iOS app for tracking a trading card collection: scan cards with the
camera (entirely on-device), organize them into groups, follow their market value
over time, and know what your collection is worth — without ads, subscriptions,
or your collection leaving your phone.
⬇︎ Download on the App Store · iOS 17+, iPhone and iPad
Why "The Tin"?
Every kid who collected had one: the tin. The binder held the bulk, but the tin held
the loved cards — the holos, the reverse holos, the EXes, the ones that got
played with and traded and looked at a hundred times. Above the binder in the
hierarchy of the heart.
This app is that tin, digitized.
Goal
Collection trackers keep drifting toward paywalls: the scanner is metered, price
history is premium, the export button costs a subscription. The Tin's goal is a
collector-grade tracker where everything works, free, forever:
- Free, with no feature gates. No ads, no premium tier, no scan limits.
- Private and offline-first. Your collection lives on your device, backed up
to your own iCloud so a new phone can restore it — never to a server of ours.
Card recognition runs entirely on-device; camera frames never leave the phone.
- Community funded, in the open. Running costs are covered by
GitHub Sponsors; what they pay for is
itemized in SPONSORS.md. Money and code are both welcome;
neither buys influence.
- Open source. The app and its backend are AGPL-3.0 — inspect it, fork it,
self-host it.
Status & roadmap
The Tin is live on the App Store — iPhone and iPad, iOS 17+. v1.0 shipped
2026-07-31; 1.0.3 is the current public release.
Download it here.
Next up: multi-device sync, trading tools, and an Android translation of the app
on Google Play. (Sync was prototyped over CloudKit and abandoned — see
#97 — so the shipping design is end-to-end-encrypted blobs the
app uploads itself, which is also what makes an Android client possible.) Bugs
and feature requests are welcome in issues — early reports get
acted on fast.
Features
Collection
- Your tin, organized — group cards however you collect (sets, decks, boxes,
binders), with per-group stats and totals.
- Wishlist — track the cards you're hunting, separate from what you own.
- Variants and conditions — normal, holo, reverse holo; condition per copy;
price paid vs. market value.
- CSV import and export — your data is yours; get it in and out in plain CSV.
Scanning
- On-device card scanner — point the camera at a card and it's recognized in
seconds, including holos and cards in binder pockets.
- No cloud, no limits — recognition combines on-device OCR with a downloadable
visual fingerprint pack, so scanning works offline and no image ever leaves
your phone.
- Batch-friendly flow — scans land in a staging tray to review, adjust
variant/condition, and route to a group in bulk.
Prices & portfolio
- Market prices — USD prices for every card, from open TCG data
sources, refreshed daily.
- Price history — sparkline trends per card and portfolio value history for
your whole collection.
- Condition & graded pricing — per-condition prices and PSA graded prices
(funded by community donations), plus population data.
- Grading ROI — see whether grading a card is worth it before you send it in.
- Sealed products — see market prices for tins, ETBs, and booster boxes
alongside each set.
Browse & discover
- Full card catalog — browse and search every set, with a Dex view to
explore by creature.
- Discover streams — For You, chase cards, and full-art streams, recommended
by on-device affinity (your taste data stays local).
Reports & extras
- Insurance report — generate a printable PDF of your collection with values,
for insurance or records.
- Print sheets — binder-style sheets of your cards for printing.
- Home screen widget — collection value at a glance.
- Light / dark / system appearance.
What's in this repository
| Directory | What it is |
|---|
ios/ | The SwiftUI app (Xcode project generated with XcodeGen from ios/project.yml) |
catalog-server/ | Self-hostable catalog server — a thin, App Attest–gated static file server (Docker) that serves the card catalog and scanner fingerprint pack (setup) |
functions/ | The catalog data pipeline (Docker, Dockerfile.pipeline) — nightly build of the card-catalog SQLite from open data feeds, price enrichment, and 3-tier packaging/publishing (configuration in .env.example) |
fingerprint/ | The scanner's fingerprint pipeline — builds the visual recognition pack (ORB descriptors + vector-quantized codebook) from catalog card images |
test_images/ | Real card photos used by the scanner's accuracy evaluation (test_images/images.csv holds the ground-truth labels) |
site/ | thetinapp.com — the static marketing, privacy and support pages, plus the Cloudflare Pages Functions behind share links (/c/, /l) |
workers/ | tin-backup, a Cloudflare Worker that serves the catalog and fingerprint pack from R2 as a second origin when the primary server is down |
This is the beginning of the README. Read the rest at the original. Read the full README ↗
