いつどこ本棚 vs Reading Memory
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
いつどこ本棚
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スマホひとつで “あなた専用の本棚” をすっきり管理できます。 こんな人におすすめ - 紙の本も電子書籍も“まとめて”管理したい -「あの本購入したっけ」をゼロにしたい - 読書記録をグラフで振り返ってモチベーションを上げたい
Reading Memory
This app helps you record and deepen your reading experience through chat-based notes and AI interactions. It allows you to track reading goals, analyze habits, and revisit your thoughts on books.
- AI-powered chat memos
- Mood tagging for emotional depth
- Card-swipe review format
- Smart book search and barcode scanning
- Reading goal setting and habit tracking
- AI summaries of chat memos
- Reading statistics and analysis
- Achievements and reading milestones
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For re-readers, not just readers. You read 30 books a year, but can barely remember 5 of them. The note app you tried felt too noisy. Goodreads felt like Instagram for books. You just wanted a quiet place to read, write, and remember. Reading Memory is a slow, private reading journal built around one belief: reading is not about finishing books. It's about what you carry with you afterwards. PER-BOOK "READ TODAY" CHECK One tap on each book you're reading. Your streak grows. Your reading becomes a daily habit, not a guilty pile of unfinished tomes. Per-book checks mean you always know what you read today, not just "did I read." CHAT-STYLE NOTES Capture fleeting thoughts as you read, in a conversation flow. No character limits. No public feed. No reactions. Just you and the book, in writing. REFLECTION CARDS Reading Memory's quiet superpower. Past notes resurface as cards you swipe through. "I remember this," "This still hits," "I had forgotten." Your reading lives on, instead of fading. Forgetting is the default. Reflection is the antidote. MOOD TAGS Eight emotional textures — moved, excited, thought-provoking, comforting, fun, enlightening, melancholic, confusing — to revisit "the books that moved me" when the right moment comes. BEAUTIFUL BOOKSHELF Cover-first grid and list views. Want-to-read, reading, finished, on-hold — your bookshelf becomes a quiet record of who you've been as a reader. SMART BOOK SEARCH & BARCODE Add books in seconds. Search by title or scan barcodes. Powered by Google Books and OpenBD for accurate metadata. READING GOALS & STREAKS Set a monthly or yearly goal. Watch your streak grow. Quiet celebration, no leaderboards. ACHIEVEMENTS Nine subtle badges that mark milestones in your reading life. Earned, not displayed. DESIGNED FOR iOS 26 Built fluently in SwiftUI with Liquid Glass throughout. A reading app that feels like part of your phone, not a website inside it. — MEMORY PLUS — Premium plan Reading Memory's core experience is fully free, including unlimited chat-style notes, reflection cards, mood tags, the bookshelf, and reading streaks. You can register up to 10 books on the free plan. Premium unlocks: ◆ Unlimited book registrations ◆ AI Chat Notes (premium only) A book-aware AI you can have a conversation with about each individual book, with the context of your past notes. ◆ AI Summary (premium only) AI summarizes your chat notes for any book, surfacing the key threads without re-reading everything. ◆ Detailed Statistics (premium only) Genre distribution, mood patterns, calendar heatmap, and pace analytics. Pricing: Monthly: $2.99 / month Yearly: $24.99 / year (save 30%) AI features and detailed statistics are available only with Memory Plus. — WHO THIS IS FOR · People who re-read more than they read · Quiet readers who left Goodreads after the social fatigue · Knowledge workers who want to remember what they've learned · Note-taking minimalists who tried Notion and Obsidian and just wanted something simpler · iOS aesthetes who care about Liquid Glass and craft Indie developer made. No ads. No tracking. No social feed. No Amazon. Read it. Write it. Re-discover it. — Feedback and bug reports: please use the in-app "Feedback" button.
Screenshots
Verdict
The clearest difference is in-app purchases: いつどこ本棚 at none against Reading Memory's 2. On price, ads, 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
Both are free to download. Reading Memory sells 2 in-app purchases, starting at $3.99 per month. いつどこ本棚 asks for nothing beyond the download.
| Parameter | いつどこ本棚 | Reading Memory |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | — | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone |
| Requires iOS | 17.4 | 17.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | shota yoshida | Kyoichi Taniguchi |
In-app purchases
いつどこ本棚
No in-app purchases
Reading Memory
- メモリープラス月額プラン$3.991 Month
- メモリープラス年額プラン$39.991 Year





