Collection vs Specimen Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Collection
Catalog and track your diverse collections with customizable fields and AI assistance. Organize items, monitor value, and manage your inventory with ease. Your data remains private and synced across devices.
- Customizable item fields
- AI-powered item descriptions and insights
- Barcode scanning and catalog search
- Photo background removal
- Value tracking and goal setting
- Private iCloud sync and backups
- Multiple display layouts
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Collection catalogs everything you collect, especially what no other app was built for: action figures, vintage toys, diecast cars, miniatures, model kits, minerals, fossils, militaria, knives, lighters, dolls, and also vinyl, cards, stamps or coins. You choose the fields, the app adapts to your collection. NEW: ARCHIE, THE CURATOR OF YOUR COLLECTIONS • Ask about your items: your most valuable pieces, what you bought this year, what is missing from a set • Ask for an item's story or a value estimate, with its sources • Describe an item: Archie drafts the entry, you check it before you add it • Archie asks for your consent before the first question CATALOG IN DETAIL • 14 ready-made templates, or a fully custom collection • Your own fields: text, number, date, list, rating, link and more • Scan a barcode or search 14 catalogs (books, music, movies, video games, comics, LEGO, coins, sneakers, Pokémon, Magic, Yu-Gi-Oh! and Lorcana cards) • Photos from the camera or your library, background removed in one tap • Value, purchase price, condition, favorites and wishlist ORGANIZE YOUR WAY • Folders to group your collections • Saved views that gather items from several collections • Gallery, list, showcase, mosaic: one layout per collection • Choose any item photo as a cover • Tags and search across all your fields TRACK THE VALUE • Total value and breakdown by collection • Price paid versus current value • Collection goal and progress YOUR DATA STAYS YOURS • Your collections live on your device and in your private iCloud, synced across your devices • Automatic restore points, full backup and CSV export • No ads Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://collection.rocketcode.app/en/privacy
Specimen Log
Organize and showcase your mineral collection with detailed records, photos, and custom tags. Track purchase history, storage locations, and analyze your collection's growth. Features include wishlist management and data export.
- Record specimen details (name, locality, price, notes)
- Attach multiple photos per specimen
- Organize with custom tags
- Track storage location (Pro)
- Analyze collection spending and counts (Pro)
- Print specimen labels (Pro)
- Manage wishlist for future finds
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Enjoy your own mineral showcase. Line up every specimen in a photo gallery and browse your collection anytime — with locality, source, and storage location just a tap away. Where did you buy that piece? What locality is it from? Which case is it in now? Specimen Log (標本帳) is a mineral collection management app. Record and organize every specimen — photos, locality, purchase source, price, storage location, and more. ------------------ WHAT YOU CAN DO ------------------ ▷ Record your specimens Save mineral name, locality, origin details, size, hardness, crystal system, purchase source, price, purchase date, condition, and free-form notes — all stored per specimen. ▷ Attach photos Add photos from your library or shoot directly in-app. Register multiple photos per specimen and swipe through them on the detail screen. ▷ Organize with tags Create custom tags for color, locality, show name, price range, or storage notes. Filter by multiple tags at once to narrow down exactly what you need. ▷ Switch your view Toggle between list view and gallery view. Browse by photo or scan purchase info and pricing at a glance. ▷ Manage shelves & cases (Pro) Register shelves and cases to track exactly where each specimen lives. No more forgetting which cabinet holds which piece. ▷ Analyze your collection (Pro) View spending by year and by purchase source, plus counts by locality and tag — all in charts. See exactly how your collection has grown over time. ▷ Print specimen labels (Pro) Turn your specimens into labels — number, mineral name, locality, size, hardness, crystal system, purchase date, and source — laid out 10 per A4 page as a PDF (91 × 55 mm each, fits business card sheets). Print or save it right from the share sheet. ▷ Wishlist for your next show Note the specimens you're hunting for at your next mineral show or shop. Convert wishlist items to full specimen records after purchase. Up to 10 items free; unlimited with Pro. ▷ Share your specimens Create a share card combining the photo and details from any specimen — easy to post on social media or share with fellow collectors. ▷ Export & import your data Export as CSV (data only) or as a ZIP with photos — free for everyone. You can also import files previously exported from this app to restore your collection. Useful for valuations, insurance records, selling reference, or moving to a new device. ------------------ WHO IT'S FOR ------------------ • Collectors who pick up multiple pieces at mineral shows (Tucson, Denver, local fairs) • Anyone who has lost locality or source info when a label fell off • Collectors tracking things in spreadsheets who want something purpose-built • Anyone whose collection has grown too large to manage mentally • Collectors who want photos, purchase history, and storage location in one place • Anyone building a wishlist before the next show ------------------ NOT AN AI IDENTIFIER ------------------ This is not an app that identifies rocks from photos. It is a collection log — a place to record specimens you have purchased or collected, in your own words. Works for rare localities, personally collected pieces, and anything AI would never know. ------------------ YOUR DATA STAYS LOCAL ------------------ All specimen data and photos are stored on your iPhone or iPad. Nothing is sent to external servers. No account registration required. ------------------ PRICING ------------------ • Free: up to 10 specimens, up to 10 wishlist items. Data export & import included • Pro (one-time purchase): unlimited specimens, unlimited wishlist, shelf/case management, collection analysis, label PDF No subscription. No recurring fees. Ever. ------------------ Developer: Kore Apps Contact: support@kore-apps.com ------------------
Screenshots
Verdict
The clearest difference is rating: Specimen Log at 4.7 against Collection's 4.5. Specimen Log also leads on iOS requirement (15.0 vs 17.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Collection sells 4 in-app purchases, starting at $1.99 per month and Specimen Log sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Specimen Log holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Collection ships an update every 6 days, Specimen Log every 5 days. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.
| Parameter | Collection | Specimen Log |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 6 days | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Antoine Conan | kazuki korenori |
Customer experience
Collection
Specimen Log
In-app purchases
Collection
- Premium$1.991 Month
- Premium + Assistant$3.991 Month
- Premium Yearly$17.991 Year
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- Premium + Assistant Yearly$24.991 Year
Specimen Log
- Specimen Log Pro$9.99









