Comparison

C vs OneClock

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

Head to head
About

C

Automatically track time spent at predefined locations like work or school. The app uses geofencing to log your entries and exits, providing daily, monthly, and yearly summaries. You can also manually start/stop tracking, edit entries, and export your data.

Highlights
  • Automatic time registration at places
  • Arrival/departure notifications
  • Manual start/stop counting
  • Edit recorded times
  • Export time data
  • Post time to social media
Features
Read full description

Your time is precious. C-Time shows you where it really goes - automatically. How many hours did you actually work this month? How often did you make it to the gym? C-Time answers these questions without you lifting a finger: define your places once, and the app clocks you in when you arrive and out when you leave. No buttons to press, no timers to forget, no extra battery drain - it uses Apple's geofence technology, not GPS. Open the app and your numbers are just there: today, this week, this month, this year - clean statistics for every place, automatically backed up to iCloud. WHAT C-TIME DOES FOR YOU • clocks you in and out automatically at your places - work, gym, wherever • shows the running time live on the lock screen, in the Dynamic Island and on Apple Watch • history per day, month and year with clear charts • set a daily goal per place and see today's over/under at a glance - turns green when you reach it • a Home & Lock Screen widget with your goal ring - progress at a glance • add a note to any check-in - shown in history, in the CSV export and on the main screen • automatic daily break deduction per place - e.g. 30 min once a day passes 4 hours (off by default) • exports a beautiful PDF report - perfect for time sheets and invoices (also CSV / e-mail) • notifies you on arrival and departure, per place if you like • manual clock in/out and editing whenever you need it • automatic iCloud backup, plus backup to a file and restore • speaks English, German, Spanish, French, Italian, Japanese, Korean and Chinese Set it up in one minute. Forget it. Know your hours. TIPS □ The automatic mode runs at its best when Wi-Fi is enabled. □ C-Time uses the same technology (geofence) as Apple's "Reminders" app. ================================================ What customers have said about C-Time: ================================================ △ Incredible app. I always forget to clock my time. With this app, its automagically handled. Love it! △ Pretty neat. I like this app a lot. It is really helping me track my work time without me having to remember to enter anything. △ Many uses. Now I dont have to remember what day/time Im called in to work on the off hours. Works great. Highly recommend. △ Works Great. Flawless....works great, and Geofencing is spot on! △ Very smart app. This app is one of the best I used. Its smart, useful, works great, & I highly Recommend it :) △ Love the idea behind this app! Can track how much time at work, girlfriends, favorite bar, volunteering... Great idea! △ Very user friendly. I like the instructions to get started. △ Amazing App! A perfect tool for business, hobby or private "actions". I can recommend this App for everybody. △ Perfect app. No need anymore to bother with tables to fill manually the hours in. All needed time stamps are logged automatically!! △ Perfect app. Simple to use and helpful to have the overview where time was spent. Congratulations! △ Great App to know where you spend your time. Works as advertised. Does NOT drain your batteries as it uses the same geofence mechanism also used by iOS for reminders and such. △ Great App!! I use it now for 2 weeks and its quite impressing to see where I spend my time. Its really simple to use. Great job. △ Very nice. A very useful and easy to use application. Good job! △ This app is really cool. It helps me see how much time I spend in school. It is so useful. Very good app. △ Très bonne application. Très pratique et fonctionne à merveille. On peut regretter labsence de calcul dheure (heure journalière, pause de midi,...) mais cette application fait ce quelle prêtant et de manière très fiable. △ Great. Funciona bem e tem boas funcionalidades. Recomendo. △ 매우 좋아요. 자동 체크인 체크아웃 해주고, 자신의 동선 자동 관리가능하며 개인적으로 장소들을 관리할 수 있다는 점이 아주 마음에 듭니다. 앞으로 더 기대되네요

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

Screenshots

C4 screens
OneClock4 screens

Verdict

The call

The clearest difference is price: OneClock at Free against C's $9.99. OneClock also leads on device support (3 vs 1). C's advantage is rating (4.4 vs 3.9) and in-app purchases (none vs 2). On review sentiment, ads and iOS requirement 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

OneClock is free to download; C costs $9.99 up front. OneClock sells 2 in-app purchases, starting at $0.99 per month. C asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

C holds the better App Store score, 4.4 against 3.9. Both are backed by a comparable volume of ratings — 39 and 9 respectively. Written reviews complicate that: 77% of C's written reviews are positive against 83% of OneClock's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

C ships an update every 5 weeks, OneClock every 3 months. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
C versus OneClock: the parameters behind the verdict, then further details
ParameterCOneClock
Price$9.99Free — better
Rating4.4 (39 ratings) — better3.9 (9 ratings)
Positive reviews76.7% of reviews83.0% of reviews — better
Number of ratings39 — better9
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS17.016.0 — better
Further details — not scored
Size3 MB11 MB
Age rating4+4+
DeveloperSiegwareChengdu Reinvent Technology Co., Ltd.

Customer experience

C

All ratings39 ratings
Positive87.2%
Neutral5.1%
Negative7.7%
Written reviews86 reviews
Positive76.7%
Neutral10.5%
Negative12.8%

OneClock

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

Bugs and requests

C

Reported bugs

10 issues
  • Automatic clock-in/out not triggering
  • Locations not registering after iOS update
  • Geofencing issues with iOS 15
  • App switching continuously between two places
  • Cannot add a name to a place
Show 5 more
  • Auto clock-in/out does not work
  • Search doesn't work in map view
  • Cannot send feedback
  • Geofence radius too large, marking check-ins when just passing by
  • App checks in when 5km away from home

Requested features

17 requests
  • Fix automatic clock-in/out bug
  • Improve location accuracy/radius control
  • Link to Apple/Google Maps for address input
  • Add client/job/project tracking
  • Add notes/comments field
Show 12 more
  • Add mileage tracker
  • Add Apple Watch complication
  • Allow display of hours and minutes (HH:mm)
  • Exclude specific times for specific locations
  • Add 3D touch support
  • Improve UI and support new iOS display ratios
  • Allow sending feedback
  • Add ability to export or email histories
  • Constant GPS monitoring with training mode
  • Allow drawing non-circular geofences
  • Support elevation for floor changes
  • Prompt user if forgot to Clock Out

OneClock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

C

No in-app purchases

2 purchases

OneClock

Subscriptions2
  • Monthly$0.991 Month
  • Yearly$9.991 Year

Questions

Is C free?
C costs $9.99, with no in-app purchases.
Is OneClock free?
OneClock is free to download, with in-app purchases available.
Which has better reviews, C or OneClock?
C is rated higher. C averages 4.4 out of 5 from 39 ratings, while OneClock averages 3.9 from 9 ratings.
Do C or OneClock have ads?
Neither C nor OneClock shows ads.
Which is updated more often, C or OneClock?
C ships an update every 5 weeks, and OneClock every 3 months. Most recently, C was updated on October 13, 2026 and OneClock on October 8, 2026.

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