Yondazo vs どこまで読んだ?
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Yondazo
Track your reading progress with detailed charts and insights. Log books, add notes, and visualize your reading journey over time. Offers on-device AI analysis for private habit discovery.
- Monthly, yearly, and all-time reading charts
- On-device AI reading habit analysis
- Book notes, ratings, and genre tagging
- Visual bookshelf with cover grid or list view
- Barcode scanning for quick book entry
- Data backup and transfer
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Yondazo is a reading log app that helps you track every book you finish and reflect on your reading journey from three different angles: monthly totals, year-over-year comparisons, and all-time growth. On Apple Intelligence-compatible devices, you can also get on-device AI insights into your reading habits — fully private, fully local. ■ THREE CHARTS TO VISUALIZE YOUR READING See how much you've read this month with the monthly bar chart, compare this year against last year with the year-over-year view, and watch your reading habit build over time with the cumulative line chart. Switch between the three views to look back on your reading journey from every angle. ■ AI READING INSIGHTS, PROCESSED ON-DEVICE On Apple Intelligence-compatible devices, on-device AI analyzes your reading habits and surfaces patterns you might not have noticed on your own — favorite genres, go-to authors, and your natural reading rhythm. Everything runs locally on your iPhone. Your reading data never leaves the device and is never sent to any server. It's private AI reading analysis — with nothing ever sent to the cloud. * On devices that don't support Apple Intelligence, you can still explore your reading trends through detailed statistics. ■ NOTES, RATINGS & GENRES FOR EVERY BOOK Jot down your thoughts after finishing a book, give it a 5-star rating, and tag it with a genre. Each entry becomes part of your personal reading journal, so you can revisit what you read and how you felt about it. Bookmark your favorites to find them again with a single tap. ■ A BEAUTIFUL BOOKSHELF, ALL YOURS Every book you add appears in a beautiful cover grid — a bookshelf that's entirely yours, ready to browse anytime. Prefer a cleaner view? Switch to list mode with a single tap. ■ ADD BOOKS IN SECONDS WITH BARCODE SCAN Just point your camera at a book's barcode. The title, author, publisher, and cover are added automatically — no tedious typing required. For older titles without a barcode, you can search and add them by title. ■ YOUR DATA, SAFE AND PORTABLE Your reading history matters. That's why Yondazo gives you the tools to keep it safe. • Full backup and restore (JSON format) • Seamless data transfer when you switch devices • Automatic migration from older versions ■ WHO IT'S FOR • Readers who want a simple way to log the books they finish • Anyone curious about how many books they read each month • People who like comparing this year's reading with last year's • Readers who enjoy reflecting on their habits through data • Anyone who wants AI to help them spot patterns in their reading • Readers who like keeping notes and impressions of each book
どこまで読んだ?
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本を読む際に、前回「どこまで読んだ?」のかが分からずに、困ってしまったことはありませんか? 本アプリは、「前回どこまで読んだか?」を様々な単位で記録することにより、スムーズに本を続きから読むことができるようになる読書管理アプリとなります。 書籍名はもちろん、詳細なページ数までも記録することができるため、読書記録を確実に残し、スムーズな読書体験が可能となります。 また、漫画や小説、雑誌等様々な媒体の書籍について記録することができるため、あらゆる書籍の「しおり」として代用可能です。 記載可能な情報としては下記となります。 ・タイトル名 ・書籍の種類 ・巻数 ・話数 ・ページ数 ・メモ情報 有料アプリとなりますので、広告は一切表示されません。
Screenshots
Verdict
The clearest difference is price: Yondazo at Free against どこまで読んだ?'s $2.99. どこまで読んだ?'s advantage is update cadence (every 3 months vs every 6 months). On ads, in-app purchases, device support and iOS requirement 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
Yondazo is free to download; どこまで読んだ? costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Yondazo ships an update every 6 months, どこまで読んだ? every 3 months. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.
| Parameter | Yondazo | どこまで読んだ? |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | arakawa yuichiro | Shun Isayama |
In-app purchases
Yondazo
No in-app purchases
どこまで読んだ?
No in-app purchases









