Comparison

专注时钟 vs KeyHour

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Full screen digital clock
  • Countdown timer
  • Customizable UI styles
  • Variety of white noise background sounds
  • Firecrackers & Fireworks animation (New Year's theme)
Features
Read full description

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.

About

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.

Highlights
  • Fullscreen landscape clock
  • Multiple clock themes
  • Countdown timers
  • Count-up timers
  • Home screen widgets
  • Ad-free experience
Features
Read full description

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

专注时钟4 screens
KeyHour4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

专注时钟 ships an update every 3 weeks, KeyHour every 9 days. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
专注时钟 versus KeyHour: the parameters behind the verdict, then further details
Parameter专注时钟KeyHour
PriceFreeFree
Rating4.6 (67 ratings) — better4.5 (54 ratings)
Positive reviews97.4% of reviews — better93.5% of reviews
Number of ratings67 — better54
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS13.0 — better17.0
Further details — not scored
Size110 MB26 MB
Age rating4+17+
Developer飞剑 姚炜东 黄

Customer experience

专注时钟

All ratings67 ratings
Positive92.5%
Neutral0.0%
Negative7.5%
Written reviews39 reviews
Positive97.4%
Neutral0.0%
Negative2.6%

KeyHour

All ratings54 ratings
Positive87.0%
Neutral3.7%
Negative9.3%
Written reviews31 reviews
Positive93.5%
Neutral6.5%
Negative0.0%

In-app purchases

None

专注时钟

No in-app purchases

3 purchases

KeyHour

Subscriptions1
  • Yearly$4.991 Year
One-time2
  • Lifetime$7.99
  • Lifetime$9.99

Questions

Is 专注时钟 free?
专注时钟 is free to download, with no in-app purchases.
Is KeyHour free?
KeyHour is free to download, with in-app purchases available.
Which has better reviews, 专注时钟 or KeyHour?
专注时钟 is rated higher. 专注时钟 averages 4.6 out of 5 from 67 ratings, while KeyHour averages 4.5 from 54 ratings.
Do 专注时钟 or KeyHour have ads?
Neither 专注时钟 nor KeyHour shows ads.
Which is updated more often, 专注时钟 or KeyHour?
专注时钟 ships an update every 3 weeks, and KeyHour every 9 days. Most recently, 专注时钟 was updated on November 3, 2026 and KeyHour on November 3, 2026.

Other comparisons