Reading Memory vs BookDiary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
BookDiary
A private reading journal to track your books, quotes, and reading habits without requiring an account or social sharing. Log your progress, save memorable passages, and discover new reads all on your device.
- Private reading journal
- Save quotes from pages
- Reading progress tracking
- Digital book shelf
- Reading calendar
- Personal reading awards
- Draw from TBR pile
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A private reading journal for readers who’d rather not share. Snap a page to save the line that stayed with you, watch your reading days quietly fill a calendar, and keep every book on a shelf that’s yours alone. No accounts. No social feed. ◆ FEATURES Five tabs: Shelf, Reading, To Read, Quotes and Records Read from a photo: snap a page and the text becomes your quote. Snap the cover to fill in title and author. Text recognition runs on your device. Reading calendar: days you added a book, logged a page, or saved a quote are marked Monthly wrap: books finished, pages, reading days and a line from the month, on one card A line for today: one of your saved quotes as a notification at the time you choose (optional) First reads and rereads logged separately, so you can see how a book changes with you Quote cards: save or share a passage as a washi-paper image Reading progress: log today’s page and watch the bar fill Personal reading awards: book of the year, most moving, most reread and more Draw a book: can’t decide what’s next? Draw one from your TBR pile Beautiful covers without photos: nine genres, each with its own washi-paper design. Using a photo? Pinch and drag to fit it to the frame. ◆ WHO IT’S FOR Readers who want to read without other people’s ratings Commonplace-book keepers moving from paper to phone Rereaders who return to favorite books over the years Anyone with a tall TBR pile Lovers of dark academia and quiet design People who avoid apps that require an account ◆ PRIVACY No account required Your books, quotes and notes are stored on your device only and never sent to a server Photo text recognition happens on-device No barcode lookups or external book services No tracking, no analytics on your reading To introduce our other apps, the app may load public App Store information (app names and icons). Your records are never sent. ◆ PRICING, PLAINLY BookDiary is free to use. The free version includes: Up to 50 books Up to 3 quotes per book and 3 photos per reading log 2 personal award categories Up to 5 entries per My Data category 5 photo text scans Washi quote cards in square format Reading calendar for the current month; monthly wrap viewable in the app The Sumi shelf theme in cover view Introductions to our other apps
Screenshots
Verdict
The clearest difference is update cadence: BookDiary at every 2 weeks against Reading Memory's every 3 months. On price, review sentiment, ads and in-app purchases 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 and BookDiary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Reading Memory ships an update every 3 months, BookDiary every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Reading Memory | BookDiary |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 29 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Kyoichi Taniguchi | torankirite |
Customer experience
Reading Memory
BookDiary
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
BookDiary
- Premium$3.99









