Comparison

CoderWatch vs Stay Clock

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

Head to head
About

CoderWatch

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StopWatch for coding competitors! - measure your coding speed - share/record your results Note: This app is NOT an official stop-watch app for CodeJam/ AtCoder.

About

Stay Clock

Features
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Optimized for iPhone Duo. Built with the latest SDK, the app fills the entire inner display and automatically adjusts its layout whether the device is folded or open. Stay Clock turns your iPhone or iPad into an always-on desk clock you can read from across the room. Pick from 101 faces, flip clocks included (100 with the optional Lifetime unlock), and switch to a dim red face on true black at night. The same face follows you to StandBy, the Lock Screen, Home Screen widgets and Apple Watch, with a calendar that fits each face, an hourly chime and a simple alarm. Made for the desk, the shelf and the nightstand. Full screen time that stays readable from far away, in portrait or landscape, on iPhone and iPad. Keep Awake that understands charging. Stay on while charging, always on with a battery floor, or follow the system, so your clock never surprises you. Panel Care for OLED screens. Gentle pixel shifting, details that soften when idle, and a dim red night face on true black for the bedroom. One face everywhere. The face you pick appears on the full screen clock, StandBy, Lock Screen and Home Screen widgets and Apple Watch, and looks the same on every one. A calendar that suits each face. Choose Off, Simple with the date and weekday, or a full Month view separately for every face. Your language and your time zone. Switch the app language instantly, pick any city or time zone, and choose 12 or 24 hour time and your own digits. Private by design. No account, no ads, no tracking and no network. Everything stays on your device. A dock on the desk: your phone stays lit while it charges, showing the time in a face you chose. A bedroom at night: the screen dims to a quiet red clock on true black and saves your OLED panel. A day away from the desk: the same face sits on your Lock Screen, your Home Screen and your wrist. What Stay Clock does Full screen always-on clock with large, readable time One free face included, with a handwritten paper look Lifetime unlock adds 100 more faces in different colors, styles and fonts Off, Simple or Month calendar saved separately for each face StandBy, Lock Screen and Home Screen widgets that match the app Apple Watch face that follows the same design Keep Awake while charging, with battery floor and system options Night schedule, dim red face and pixel shifting for OLED screens Hourly chime and a simple alarm App language and time zone chosen inside the app iPhone and iPad layouts for every screen size Stay Clock is a free download with one complete face. One optional Lifetime purchase unlocks 100 more faces for good, with no subscription. Everything runs on your device. No account, no ads, no analytics and no tracking. Optimized for iPhone Duo.

Screenshots

CoderWatch3 screens
Stay Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: CoderWatch at none against Stay Clock's 1. CoderWatch also leads on iOS requirement (16.4 vs 18.0). Stay Clock's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Stay Clock sells 1 one-off in-app purchase. CoderWatch asks for nothing beyond the download.

UpkeepUpdate frequency

CoderWatch ships an update weekly, Stay Clock every 4 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard3 real differences ยท 3 level
CoderWatch versus Stay Clock: the parameters behind the verdict, then further details
ParameterCoderWatchStay Clock
PriceFreeFree
Update frequencyWeeklyEvery 4 days โ€” better
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad, Apple Watch โ€” better
Requires iOS16.4 โ€” better18.0
Further details โ€” not scored
Size6 MB30 MB
Age rating4+4+
DeveloperTomoaki YagishitaGuan Feng Lai

In-app purchases

None

CoderWatch

No in-app purchases

1 purchases

Stay Clock

One-time1
  • Stay Clock Lifetime$4.99

Questions

Is CoderWatch free?
CoderWatch is free to download, with no in-app purchases.
Is Stay Clock free?
Stay Clock is free to download, with in-app purchases available.
Do CoderWatch or Stay Clock have ads?
CoderWatch shows ads; Stay Clock does not.
Which is updated more often, CoderWatch or Stay Clock?
CoderWatch ships an update weekly, and Stay Clock every 4 days. Most recently, CoderWatch was updated on October 27, 2026 and Stay Clock on October 25, 2026.

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