Histotime | 不定期な記録管理 vs Writeblock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Histotime | 不定期な記録管理
This app allows you to easily record infrequent actions and events as they happen, like taking medication or experiencing health changes. Organize your entries by folder and review them on a calendar to track intervals and past occurrences. It's designed for those who need to remember specific, irregular events without the commitment of daily tracking.
- Record infrequent actions and events
- One-tap recording
- Organize records by folder
- Calendar view for daily records
- Track intervals between events
- Review past occurrences
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Histotime/ヒストタイム は、毎日続ける習慣ではなく、 必要なときだけ発生する行動や出来事を記録するためのアプリです。 市販薬の服用、体調の変化、外食、掃除など、 日常の中で不定期に起こる行動を、ワンタップで簡単に記録できます。 記録はフォルダーごとに整理でき、 カレンダー画面では日ごとの記録を一覧で確認できます。 過去の記録を振り返ることで、 「前回いつだったか」や「どれくらい間隔が空いているか」を把握しやすくなります。 一般的な時間管理アプリのようなスケジュール入力や、 習慣管理アプリのような毎日の記録は必要ありません。 起きたときに、無理なく記録する。 Histotime は、不定期な行動をシンプルに残したい方のためのアプリです。 【こんな方にオススメ】 - 「前回いつだったか」を毎回思い出せず困ることがある - 記録したいが、入力が多いアプリは続かなかった - 毎日の習慣管理ではなく、必要な記録だけ残したい - 管理よりも「忘れないこと」を重視したい - 服薬の記録を見返し、間隔を把握したい方 ※ 毎日ではない行動の記録を中心にしていますが、習慣的な行動の記録にも使えます。
Writeblock
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Your favorite apps are on pause. The key? Just 50 characters about your day. Write a quick journal entry, and everything unlocks. Skip it, and YouTube, TikTok, and Instagram stay locked. Writeblock is not a journaling app. It's a habit engine. We block your dopamine apps every night until you write. No fancy editor — but Markdown, photos, and voice memos come standard. Most people discover they actually enjoy it. WHAT MAKES WRITEBLOCK DIFFERENT - Apps stay blocked until you journal — no willpower needed - 50 characters. That's about 3 sentences. Takes 2 minutes - Attach photos, record voice memos — no limits - Markdown formatting, for when you're that kind of person - No account, no signup — we never see a word you write - Build a streak — then graduate to any diary app you love - Export your entries anytime, for free, forever HOW IT WORKS 1. Pick the apps you can't stop opening 2. Set your nightly block time (default: 9 PM) 3. When blocked, write 50 characters to unlock everything 4. Watch your streak grow. Watch your habits change. YOUR DATA IS YOURS Your journal entries live on your device — and, with iCloud sync on, in your own private iCloud. They never reach our servers, and with no account, we literally can't read your diary. Export to Markdown anytime — it's always free. FREE TO START. $9.99 TO UNLOCK FOR GOOD. Journaling, full diary access, Markdown export, Face ID lock, iCloud sync — free forever. App blocking is free to try for two weeks; unlock it permanently with one $9.99 purchase. No subscription. No ads. No accounts. Pay once, own it forever.
Screenshots
Verdict
The clearest difference is in-app purchases: Histotime | 不定期な記録管理 at none against Writeblock's 1. Histotime | 不定期な記録管理 also leads on update cadence (every 3 weeks vs every 2 months). Writeblock's advantage is ads (none vs shown). 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
Both are free to download. Writeblock sells 1 one-off in-app purchase. Histotime | 不定期な記録管理 asks for nothing beyond the download.
Histotime | 不定期な記録管理 ships an update every 3 weeks, Writeblock every 2 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.
| Parameter | Histotime | 不定期な記録管理 | Writeblock |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 66 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | ITSolutionZ Inc. | sumin lee |
In-app purchases
Histotime | 不定期な記録管理
No in-app purchases
Writeblock
- 앱잠금 영구 해제$9.99









