Comparison

Yondazo vs feelog(ふぃーろぐ)

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

feelog(ふぃーろぐ)

Features
Read full description

感情タグと写真で、日々のできごとを記録できる日記アプリです。 その日の気分やできごとを、言葉だけでなく感情と一緒に残せます。 主な特長 ・感情タグを選んで、気持ちを簡単に記録 ・写真を添えて、思い出をより鮮明に保存 ・カレンダーから過去の日記や気分をすぐに振り返り ・シンプルで、毎日続けやすい操作性 日々の気持ちを整理したい方や、過去の自分を振り返りたい方におすすめです。 【機能説明】 感情タグ付きの日記作成 あらかじめ用意された感情タグを選択し、その日の出来事と一緒に記録できます。 言葉にしにくい気分も、タグを使って直感的に残せます。 写真の追加・管理 日記に写真を添えることで、出来事や思い出を視覚的にも記録できます。 複数の写真を追加・管理することも可能です。 カレンダーからの日記一覧表示 カレンダー表示により、過去の日記を日付ごとに確認できます。 感情の流れや出来事を、時系列で振り返ることができます。 CSV形式でのデータ書き出し 作成した日記データをCSV形式で書き出すことができます。 記録を手元に残したい方や、後から別の用途で活用したい場合にも便利です。 補足 ・オフラインで利用可能 ・データは端末内に保存されます

Screenshots

Yondazo4 screens
feelog(ふぃーろぐ)4 screens

Verdict

The call

The clearest difference is update cadence: feelog(ふぃーろぐ) at fortnightly against Yondazo's every 6 months. feelog(ふぃーろぐ) also leads on iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Yondazo ships an update every 6 months, feelog(ふぃーろぐ) fortnightly. The most recent releases landed on October 9, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 7 level
Yondazo versus feelog(ふぃーろぐ): the parameters behind the verdict, then further details
ParameterYondazofeelog(ふぃーろぐ)
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size7 MB23 MB
Age rating4+4+
Developerarakawa yuichiroJuri Shiota

In-app purchases

None

Yondazo

No in-app purchases

None

feelog(ふぃーろぐ)

No in-app purchases

Questions

Is Yondazo free?
Yondazo is free to download, with no in-app purchases.
Is feelog(ふぃーろぐ) free?
feelog(ふぃーろぐ) is free to download, with no in-app purchases.
Do Yondazo or feelog(ふぃーろぐ) have ads?
Neither Yondazo nor feelog(ふぃーろぐ) shows ads.
Which is updated more often, Yondazo or feelog(ふぃーろぐ)?
Yondazo ships an update every 6 months, and feelog(ふぃーろぐ) fortnightly. Most recently, Yondazo was updated on October 9, 2026 and feelog(ふぃーろぐ) on September 24, 2026.

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