专注时钟 vs KeyHour
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
专注时钟
Enhance focus and productivity with a customizable digital clock, countdown timer, and a variety of white noise soundscapes. Designed to help you enter work or study states faster and more efficiently.
- Full screen digital clock
- Countdown timer
- Customizable UI styles
- Variety of white noise background sounds
- Firecrackers & Fireworks animation (New Year's theme)
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You meant to study for an hour. Somehow, you spent an hour scrolling instead. This time, let the clock protect that time for you. Open Focus Clock and your phone becomes a quiet desk clock. Large digits fill the screen, rain falls softly in the background, and there is only one thing left to do: begin. ▸ Make the time you set aside count “The next 45 minutes are for learning vocabulary.” Set your focus time and what you want to work on. We’ll remind you when time is up, so there’s no need to keep checking the clock. ▸ Keep distracting apps out of reach Block the apps most likely to pull your attention away while you focus. You can even check how much time is left from your Lock Screen without opening the app. ▸ Create a quiet corner wherever you are Rain on the roof, birds in the forest, a campfire late at night… Put on your headphones and let the noise around you fade away. Choose from animated skies, auroras and falling snow, or use a favourite photo of your own. ▸ Every focused moment adds up Each focus session is saved to your calendar, and your streak grows one day at a time. Look back and you may realise: I can actually be this consistent. Revising for exams, writing a dissertation, reading, studying or working — spend a little less time scrolling and finish one more thing that matters. — About ads: This app is free to use and contains third-party advertising. A skippable launch ad may appear when the app opens. Some backgrounds can be unlocked by watching video ads. Watching is entirely optional and does not affect timers or focus records.
KeyHour
This app offers a fullscreen digital clock experience inspired by landscape mode designs. It features multiple well-crafted themes and supports both countdown and count-up timers, along with home screen widgets.
- Fullscreen landscape clock
- Multiple clock themes
- Countdown timers
- Count-up timers
- Home screen widgets
- Ad-free experience
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KeyHour helps you feel time passing, stay focused, and reclaim your attention. ◎ Thoughtfully designed for landscape mode. ◎ Multiple carefully crafted clock themes. ◎ App blocking to protect your time from social media and games. ◎ Supports both countdown and count-up timers. ◎ Time widgets to make your Home Screen feel unique and special. I’d love to hear your ideas and feedback — just send an email to kiiiidd@duck.com. ◎ Privacy Policy: https://dominich.notion.site/KeyHour-ead63446fd074e53bc00fb0364cd5984 ◎ Terms of Use: https://dominich.notion.site/KeyHour-26c7b126e78f42c5abbea9254f092ae4
Screenshots
Verdict
The clearest difference is in-app purchases: 专注时钟 at none against KeyHour's 3. 专注时钟 also leads on iOS requirement (13.0 vs 17.0). KeyHour's advantage is update cadence (every 9 days vs every 3 weeks). On price, rating, review sentiment and ratings volume 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. KeyHour sells 3 in-app purchases, starting at $4.99 per year. 专注时钟 asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for 专注时钟 against 4.5 for KeyHour. Both are backed by a comparable volume of ratings — 67 and 54 respectively. Written reviews are what separate them: 97% of 专注时钟's written reviews are positive against 94% of KeyHour's.
专注时钟 ships an update every 3 weeks, KeyHour every 9 days. Both last shipped on November 3, 2026.
| Parameter | 专注时钟 | KeyHour |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (67 ratings) — better | 4.5 (54 ratings) |
| Positive reviews | 97.4% of reviews — better | 93.5% of reviews |
| Number of ratings | 67 — better | 54 |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 110 MB | 26 MB |
| Age rating | 4+ | 17+ |
| Developer | 飞剑 姚 | 炜东 黄 |
Customer experience
专注时钟
KeyHour
In-app purchases
专注时钟
No in-app purchases
KeyHour
- Yearly$4.991 Year
- Lifetime$7.99
- Lifetime$9.99







