Comparison

Yondazo vs Reading Savings

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Reading Savings

Features
Read full description

Reading Passbook – A reading log app where the books you read turn into “savings.” What is Reading Passbook? When you log a book you borrowed from the library or read through an unlimited-reading service, the book’s retail price is added as “Reading Savings.” It turns your reading activity into a visible, motivating habit — great for children building reading routines and adults who want to track their reading in a fun way. Main Features ・Book Registration Scan barcodes to register books instantly Search by title to find books Add books manually when needed ・Reading Savings Track the price of books you read from libraries or unlimited services View savings in a clean passbook-style log See how much you “saved” by reading instead of buying ・Bookshelf View Manage all the books you’ve read in one place Display book covers in a visual bookshelf layout Rate each book and add notes to remember your impressions ・Profile Management Create separate bookshelves for each family member Perfect for households where parents track children’s reading ・Share Your Reading Share monthly reading reports as images Create stylish cards showing the book covers you’ve read Who is this app for? Parents who want to support their child’s reading habit People who frequently use libraries Users of unlimited-reading services such as Kindle Unlimited Anyone who wants a fun, motivating way to keep a reading log Reading becomes more enjoyable when you can see your progress and savings. Start your Reading Passbook today!

Screenshots

Yondazo4 screens
Reading Savings4 screens

Verdict

The call

The clearest difference is in-app purchases: Yondazo at none against Reading Savings's 1. Reading Savings's advantage is update cadence (weekly vs every 6 months) and iOS requirement (15.1 vs 18.0). On price, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Reading Savings sells 1 one-off in-app purchase. Yondazo asks for nothing beyond the download.

UpkeepUpdate frequency

Yondazo ships an update every 6 months, Reading Savings weekly. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
Yondazo versus Reading Savings: the parameters behind the verdict, then further details
ParameterYondazoReading Savings
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size7 MB36 MB
Age rating4+4+
Developerarakawa yuichiroMiyuki Fujirai

In-app purchases

None

Yondazo

No in-app purchases

1 purchases

Reading Savings

One-time1
  • 読書貯金プレミアム$19.99

Questions

Is Yondazo free?
Yondazo is free to download, with no in-app purchases.
Is Reading Savings free?
Reading Savings is free to download, with in-app purchases available.
Do Yondazo or Reading Savings have ads?
Neither Yondazo nor Reading Savings shows ads.
Which is updated more often, Yondazo or Reading Savings?
Yondazo ships an update every 6 months, and Reading Savings weekly. Most recently, Yondazo was updated on October 12, 2026 and Reading Savings on October 28, 2026.

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