Yomu vs Deckle
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Yomu
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Yomu is a reader for iPhone and iPad built for heavy scanned and self-scanned PDFs. Convert self-scanned books, scanned handouts, and technical or class-material PDFs into .yom, a reading-optimized format, and page through them fast โ a reader built to focus on reading. [Key Features] โข Blazing-fast page rendering Smooth, stress-free reading even with heavy scanned PDFs and large documents. โข Full-text search, even for scans Build an index and jump straight to matching pages. Image-only scanned PDFs are made searchable with on-device OCR. โข Two-page spreads and reading direction Choose left-to-right or right-to-left, with full two-page spread support. โข Comfortable reading adjustments Shadow reduction at page edges and color inversion for dark reading. โข Everything runs on device Conversion, search, and reading all run on device โ your content is never sent to a server. Read offline anytime. โข Simple one-time purchase Add up to 2 books for free. Adding a 3rd requires a single one-time purchase โ no subscription, no recurring charges. Terms of Use: https://yomu.juntaki.com/terms/ Privacy Policy: https://yomu.juntaki.com/privacy-policy/
Deckle
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Meet Deckle, the beautifully designed reading tracker and personal library built for book lovers who want more out of their reading. Whether you are trying to read more this year, organizing a massive physical library, or just want to see your reading stats, Deckle is the only app you need. BUILD YOUR LIBRARY INSTANTLY Quickly add physical books to your digital shelves using our lightning-fast barcode scanner, or search millions of titles manually. BEAUTIFUL, SMART ORGANIZATION Ditch the messy lists. Organize your collection using custom shelves, filter by reading status, and keep track of your "Up Next" queue and Wishlist. UNLOCK YOUR TROPHY ROOM Augment your reading into a rewarding game. Unlock beautifully designed trophies and achievements as you log pages, finish books, and maintain your reading streak. DEEP READING INSIGHTS Get to know your reading habits. Deckle tracks your reading velocity (your personal "Speedometer") and helps you estimate exactly how long it will take to finish your current read. INCREDIBLE CUSTOMIZATION & PRIVACY Make the app yours. Choose from custom app themes (including true OLED dark modes) and lock your private library behind Face ID / Touch ID for ultimate peace of mind. Say goodbye to clunky, outdated reading logs. Download Deckle and fall in love with reading all over again.
Screenshots
Verdict
The clearest difference is in-app purchases: Deckle at none against Yomu's 1. Deckle also leads on update cadence (every 4 weeks vs every 4 months). Yomu's advantage is iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Yomu sells 1 one-off in-app purchase. Deckle asks for nothing beyond the download.
Yomu ships an update every 4 months, Deckle every 4 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | Yomu | Deckle |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 4 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 17.0 โ better | 26.2 |
| Further details โ not scored | ||
| Size | 12 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Jumpei Takiyasu | Michael Luce |
In-app purchases
Yomu
- Yomu Unlimited$9.99
Deckle
No in-app purchases









