Fast Diary vs Souji Memo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fast Diary
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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。
Souji Memo
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Souji Memo is a simple cleaning routine tracker. Register the places you want to clean, set how often, and see exactly what to clean today. ■ Register your cleaning spots Add any place - toilet, bath, entrance, kitchen - with a name, an emoji, and a frequency (every X days). Color-code them for an easy overview. ■ One tap to finish today's cleaning The home screen automatically lists what's due today and what's coming up. Tap when you're done, and it's logged. You can also see how many days have passed since the last clean. ■ Look back with the calendar Check when and where you cleaned on the calendar. See how steadily your routine is building and find your own pace. ■ Per-place history Review how often each spot has been cleaned and adjust to a frequency that works for you. ■ Private and offline - All data is stored only on your device - No account or connection required - Works fully offline - CSV export supported ■ Great for - Anyone who puts off cleaning - Households sharing chores - Solo dwellers building a cleaning rhythm - Anyone who wants cleaning to become a habit A simple log to help you keep cleaning at your own pace.
Screenshots
Verdict
The clearest difference is update cadence: Souji Memo at every 4 days against Fast Diary's every 3 months. 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
Both are free to download. Fast Diary sells 1 one-off in-app purchase and Souji Memo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Fast Diary ships an update every 3 months, Souji Memo every 4 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Fast Diary | Souji Memo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 89 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Haruya Nakamura | 丽佳 施 |
In-app purchases
Fast Diary
- Ad hiding option$0.99
Souji Memo
- Remove Ads$0.99









