Comparison

OneClock vs When

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

Head to head
About

OneClock

This app offers a variety of customizable clock styles for desktop and mobile devices. Enjoy features like adjustable display modes, font customization, and transparency settings, with multiple clock designs available.

Highlights
  • Multiple clock styles (Flip, Digital, Dial)
  • Desktop display on macOS
  • Customizable font and transparency
  • Portrait and landscape modes
  • Screen not quenching
  • Home screen and widget support
Features
Read full description

OneClock - Flip Clock And Desktop Clock #iOS Version - Switch between portrait and landscape mode - The screen not be quenched - Switch between the different clock styles - Custom 24h Format - Custom Tag - Custom One_Click Menu - Home Screen Clock (Small, Medium) - Hour Widget - Minute Widget - Second Widget #macOS Version - Many Clock Styles - The clock can be displayed on the desktop - The clock can customize the font - The clock can set the transparency - There are multiple screensavers - Dark Theme And Light Theme Styles: Flip Clock Digital Clock Dial Clock More Styles Will Come... We offers yearly subscriptions. The subscription prices are: $0.99/month $9.99/Year -You can subscribe to yearly plan. The prices are in US dollars. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. -Payment will be charged to iTunes Account at confirmation of purchase. -Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the period. -Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. -Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. -Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy: http://docs.onenice.tech/#/OneClock/privacy Terms of Service: http://docs.onenice.tech/#/OneClock/terms Terms of Use: :https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact us: hi@onenice.tech

About

When

This app offers a minimalist flip clock experience with customizable widgets. It features a full-screen display with classic page-turning animations and adjustable brightness. Personalize your time display with options for seconds, date, and week.

Highlights
  • Full-screen classic flip animation
  • Minimalist design style
  • Customizable time display (seconds, date, week)
  • 12/24 hour mode switching
  • Adjustable screen brightness
  • Multiple widget options (Flip Clock, Digital Clock, Calendar, Progress Bar, Disc Clock)
Features
Read full description

It is a must-have personalized posing artifact for hipsters, a must-have tool for exam preparation and study, and hard work. Eye-catching digital digital watch display, convenient for your living room, any angle of the work desk to watch the time. Full screen flip, clock display more prominent, no matter where you put it, it is a beautiful scenery. Widgets: - Flip Clock Widget - Digital Clock Widget - Friday Calendar Widget - Progress Bar Widget - Disc Clock Widget Special Features. 1, full-screen classic page animation, minimalist design style 2、Free control of the display of time: seconds, date, week is free to control the display of hidden 3, 12 and 24 hours mode switching 4, left and right slide the clock screen, adjust the brightness of the screen

Screenshots

OneClock4 screens
When4 screens

Verdict

The call

The clearest difference is rating: When at 4.7 against OneClock's 3.9. When also leads on in-app purchases (none vs 2) and update cadence (weekly vs every 3 months). OneClock's advantage is ads (none vs shown). On price, review sentiment 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OneClock sells 2 in-app purchases, starting at $0.99 per month. When asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

When holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 9 and 28 respectively. Written reviews point the same way: 83% of OneClock's written reviews are positive against 90% of When's.

UpkeepUpdate frequency

OneClock ships an update every 3 months, When weekly. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

Scorecard7 real differences · 3 level
OneClock versus When: the parameters behind the verdict, then further details
ParameterOneClockWhen
PriceFreeFree
Rating3.9 (9 ratings)4.7 (28 ratings) — better
Positive reviews83.0% of reviews90.0% of reviews — better
Number of ratings928 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationSubscriptionAd-supported — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.010.0 — better
Further details — not scored
Size11 MB73 MB
Age rating4+4+
DeveloperChengdu Reinvent Technology Co., Ltd.磊 岑

Customer experience

OneClock

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews47 reviews
Positive83.0%
Neutral4.3%
Negative12.8%

When

All ratings28 ratings
Positive92.9%
Neutral7.1%
Negative0.0%
Written reviews20 reviews
Positive90.0%
Neutral5.0%
Negative5.0%

In-app purchases

2 purchases

OneClock

Subscriptions2
  • Monthly$0.991 Month
  • Yearly$9.991 Year
None

When

No in-app purchases

Questions

Is OneClock free?
OneClock is free to download, with in-app purchases available.
Is When free?
When is free to download, with no in-app purchases.
Which has better reviews, OneClock or When?
When is rated higher. OneClock averages 3.9 out of 5 from 9 ratings, while When averages 4.7 from 28 ratings.
Do OneClock or When have ads?
When shows ads; OneClock does not.
Which is updated more often, OneClock or When?
OneClock ships an update every 3 months, and When weekly. Most recently, OneClock was updated on September 30, 2026 and When on October 1, 2026.

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