| Best fit | Large physical book collections on shelves | Mixed-media collections (books, games, movies) | Dedicated collectors wanting custom fields & valuations | Detailed bibliographic data & book community | Reading tracking, reviews, and discovery |
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| Adding books | Continuous shelf sweep, barcode, or search | Barcode/ISBN scan, search, or CSV import | Barcode scan, ISBN OCR, or title search | Barcode scan, title search, or CSV import | Barcode scan or manual search |
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| Full-shelf scanning | Primary continuous workflow | Not supported | Not supported (single barcode only) | Not supported | Not supported |
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| Physical location | Bookcase and shelf structure mapped visually | Tags, collections, and custom groups | Custom location, room, and box fields | Collections and tags | Digital shelves only (no room/shelf location) |
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| Key strengths | Shelf-first speed, shelf context, link sharing, lending | Mixed media, loan circulation on Pro plans | Collector fields, condition tracking, cover art sync | Deep MARC records, member reviews, active forums | Reading goals, social friend feeds, massive review database |
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| Platforms | iOS (Android waitlist open) | Web, iOS, Android | Web, iOS, Android | Web, iOS, Android | Web, iOS, Android |
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| Pricing | Free iOS app | Free Basic (5,000 items) / Paid Pro | $1.99/mo or $19.99/yr (no permanent free tier) | Free | Free |
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