Comparison

ThreadNote vs Fast Diary

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

Head to head
About

ThreadNote

This app offers a unique list-based note-taking experience without traditional titles. Organize your thoughts hierarchically with parent-child notes and navigate them using intuitive swipes and gestures. Customize display settings and export your notes in various formats.

Highlights
  • Hierarchical parent-child note organization
  • List-based display without traditional titles
  • Swipe and pinch gestures for navigation and folding
  • Text filtering and tag-based search
  • Note sharing and exporting
  • Customizable display settings
  • Data backup and restoration
Read full description

ThreadNote is a simple text note application that stands out for its two unique features. Firstly, it eschews the traditional title list format; instead, all content, both titles and body text, is displayed in a list format (with a limit on the number of display lines). Secondly, it allows for the creation of child notes, enabling users to organize notes into a branching hierarchy of parent-child relationships. Users can navigate between parent and child notes with left and right swipes, and can use pinch in to fold notes down to just the title and the first few lines of text (configurable from 0 to 10 lines), with a pinch out gesture to unfold. This folding action can also be performed by tapping a button on the note. Features: - Notes with titles, body text, tags, creation and modification dates - Note filtering through string and tag searches - Note editing and deletion - Tagging - Bookmarking - Note sharing (exporting) - Changing the order of notes - Moving notes between parents and children Note Sharing: - Notes can be exported to other apps or file folders via the action button on the note editing screen. - Options to select only the note being edited, all its siblings (notes at the same level), or all its descendants (notes at lower levels) - Select multiple output items: title/tags/creation date/modification date/body text - Auto-numbering: Automatically numbers titles when exporting multiple notes (optional) Settings: - Changing the font of titles and body text in the list and editing screens - Changing the base color - Dark mode toggle - Adjusting the maximum note width - Setting the number of lines for folded display in the list view (0 to 10 lines) - Setting the maximum number of display lines for body text in the list view (up to 500 lines) Other: - Backup and restoration of all data Limitations: - Only handles text. It cannot manage images, audio, location data, etc.

About

Fast Diary

Features
Read full description

Fast Diaryは、シンプルでサクッと日記を書くことができるアプリです。 その日の気分や天気も簡単に記録することができ、一言日記を残していくことができます。 このアプリの特徴 ・シンプルでオシャレ、ミニマルなデザイン ・テーマカラーを気分に合わせて変更できる ・気分や天気をアイコンで記録・確認できる ・日記に写真を設定することができる ・保存した日記を検索できる ・カレンダーで一覧確認できる ・ロック機能(パスコード・生体認証)でロックできる また、今後以下の機能追加を予定しています。 ・iCloudバックアップ機能 ・アルバム機能 ご要望や不明点はお問い合わせ画面からお問い合わせください。

Screenshots

ThreadNote4 screens
Fast Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: ThreadNote at none against Fast Diary's 1. ThreadNote also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fast Diary sells 1 one-off in-app purchase. ThreadNote asks for nothing beyond the download.

UpkeepUpdate frequency

ThreadNote ships an update every 3 weeks, Fast Diary every 3 months. The most recent releases landed on June 5, 2026 and August 17, 2026 respectively.

Scorecard3 real differences · 7 level
ThreadNote versus Fast Diary: the parameters behind the verdict, then further details
ParameterThreadNoteFast Diary
PriceFreeFree
Rating3.4 (5 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.416.4
Further details — not scored
Size5 MB89 MB
Age rating4+4+
DeveloperSmallmakeHaruya Nakamura

In-app purchases

None

ThreadNote

No in-app purchases

1 purchases

Fast Diary

One-time1
  • Ad hiding option$0.99

Questions

Is ThreadNote free?
ThreadNote is free to download, with no in-app purchases.
Is Fast Diary free?
Fast Diary is free to download, with in-app purchases available.
Do ThreadNote or Fast Diary have ads?
Fast Diary shows ads; ThreadNote does not.
Which is updated more often, ThreadNote or Fast Diary?
ThreadNote ships an update every 3 weeks, and Fast Diary every 3 months. Most recently, ThreadNote was updated on June 5, 2026 and Fast Diary on August 17, 2026.

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