ThisDay vs Chronos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ThisDay
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やりたいことに集中できる毎日をつくる。 「今日、何しよう?」そう考えるたびに時間が過ぎていく。 ThisDayは、あなたの1日の隙間を自動で見つけてくれる時間管理アプリです。 毎日の固定スケジュール(仕事・食事・睡眠)を登録するだけで、その合間にある自由時間を自動で計算。あとはその枠に「何をするか」を1つ書くだけ。 ■ こんな人に ・ToDoリストを作るけど、結局何もこなせない ・スキマ時間があるのに、何をすべきか迷ってしまう ・毎日のルーティンはあるが、自由時間の使い方が曖昧になっている ■ シンプルな3ステップ 1. 起床・就寝時刻と、毎日の固定予定を設定 2. 固定予定の合間の空き枠が自動で表示される 3. 気になる枠をタップして「何をするか」を1つ書くだけ ■ 特徴 ・1枠に1タスク。シンプルだから続く ・昨日・今日・明日の3日間だけを管理。週や月の計画は要らない ・固定予定の時間をその日だけ変更できる(打ち合わせが伸びたときも安心) ・毎朝の通知でリマインド。時刻は自由に設定可能 ・データはすべてデバイス内に保存。アカウント不要・ネット不要 開いたらすぐ今日が見える。今日の予定を、今日こなす。
Chronos
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Be the architect of time. Turn the dial, set the rhythm that feels right for you. Who said a second has to be a second? In the world you create, may you find your peace. Chronos is not another 25-minute timer. It is a focus clock built on one quiet truth: we all live in our own time. Some of us flow best at midnight. Some find our rhythm in the early morning. We each feel time differently — what feels like a second to you might stretch into a minute for someone else. And all around us, every moment on this planet, life unfolds at its own pace: a bird takes its first flight, a snowball rolls down a hill, a whale grows beneath the waves. To notice this is to find peace. WHAT HAPPENS IN AN HOUR • Twelve living watercolor worlds move with your clock. Watch a whale breach at dawn, mist drift over karst peaks, golden dunes shift in the wind, aurora dance across snow, and the galaxy bloom over midnight. The sun and moon trace real celestial arcs across the sky. • The world responds to you. Brush the screen and wind ripples through the grass. Tap a bird and it banks away. Touch the water and waves spread outward. Every sound is synthesized from pure mathematics — no recordings, no loops, just quiet, living whispers. • Life grows as you work. Eagles court, brood, and hatch their young on the cliffside. Two ships cross the evening sea to meet. Your focus becomes their story. WHEN THE HOUR ENDS It burns. Gently, completely. Then you mark it: one needle, five weights of time, a line if you wish, and your seal. Every hour has its weight. THE FRUITS OF TIME Your history is not a spreadsheet. It is an orchard. Every day is a tree. Every focus session is a fruit. Weekends glow in terracotta. Scroll back through your seasons, and see your time bloom. No account. No ads. No tracking. Your hours belong only to you, and stay only on your phone.
Screenshots
Verdict
The clearest difference is update cadence: Chronos at weekly against ThisDay's every 6 weeks. 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. Neither carries in-app purchases, so what you see is what you pay.
ThisDay ships an update every 6 weeks, Chronos weekly. The most recent releases landed on November 5, 2026 and October 25, 2026 respectively.
| Parameter | ThisDay | Chronos |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Riku Higashimura | Archest, LLC |
In-app purchases
ThisDay
No in-app purchases
Chronos
No in-app purchases









