Keep Time! vs 要事四象限
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keep Time!
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1.Simple To-Do List 2.Easy To Trace Your Time 3.Statical Analisis 4.Remind You To Execute Your Plan 5.Pomodoro Technique 6.Procrastination Killer This App, Free ,No advertisement ，No Pay in it, Ever No remind comment.If you think it 's good , bad, or something you want to tell the maker, Comment it ,email : ibowandarrow@163.com, Thank you very much. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
要事四象限
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本应用是一个简单的要事四象限管理工具，帮助你更好地管理你的时间。 在读《高效能人士的七个习惯》过程中，习惯三“要事第一”看似很简单的一句话，但是落实起来却是很难的，所以我开发了这个应用来帮助更好地管事情。 本应用尽量追求简洁，不增加多于的干扰功能，希望能管理你的要事。
Screenshots
Verdict
The clearest difference is price: Keep Time! at Free against 要事四象限's $0.99. Keep Time! also leads on update cadence (every 5 weeks vs every 33 months) and device support. 要事四象限's advantage is in-app purchases (none vs 1).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Keep Time! is free to download; 要事四象限 costs $0.99 up front. Keep Time! sells 1 in-app purchase, starting at $1.99 per year. 要事四象限 asks for nothing beyond the download.
Keep Time! ships an update every 5 weeks, 要事四象限 every 33 months. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.
| Parameter | Keep Time! | 要事四象限 |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 5 weeks — better | Every 33 months |
| Ads | No | — |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | 锡蕃 林 | 超 孟 |
In-app purchases
Keep Time!
- Annually7 Days trial$1.991 Year
要事四象限
No in-app purchases
