AtomicClock vs Big Child Treasures
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AtomicClock
This app displays the exact current time synchronized with NTP servers, offering a customizable clock view for precise time checks. It's ideal for setting watches, verifying timestamps, or comparing local and network time.
- Precise time from NTP servers
- Customizable clock faces
- Select or add time servers
- Local and UTC views
- 12/24 hour modes
- Customizable time format
- Acoustic ticking
Read full descriptionHide full description
Check precise NTP reference time at a glance. AtomicClock helps you set watches, wall clocks, cameras, and other devices, compare local time with UTC, and follow moments when every second matters. Clear analog and digital time AtomicClock displays current time from NTP servers that reference atomic clocks. Choose a predefined server or add your own, then view local or UTC time in a clean analog or digital clock. Customize your reference clock • Switch between 12-hour and 24-hour time • Customize the time format • Choose from multiple clock faces and hands • Use a smooth, fluid second hand • Add acoustic ticking or the Greenwich Time Signal • Tap the screen to hide information and controls, freeze the display, or mute ticking Details for precise time checks View technical NTP information, including round-trip time and server stratum. Whether you are checking a timestamp, preparing a camera, aligning a wall clock, or setting a watch by hand, the seconds remain clear and easy to follow. AtomicClock is free to use. AtomicClock Pro is available as a one-time purchase with no subscription. It unlocks your preferred clock face, hands, and font, removes ads, and includes upcoming Pro features. AtomicClock displays NTP reference time for comparison and does not change your device’s system time. Results can vary with the selected server, network conditions, and device behavior.
Big Child Treasures
Read full descriptionHide full description
Big Child Treasures es la aplicación ideal para personas coleccionistas que desean registrar, organizar y mostrar sus colecciones de manera sencilla y visual. Descubre una comunidad vibrante donde puedes compartir tus tesoros, explorar colecciones de otras personas y conectar con quienes comparten tu pasión por el coleccionismo. Mantén un registro detallado de tus piezas, añade fotos y descripciones. ¡Únete y celebra el arte de coleccionar con Big Child Treasures! Términos de uso: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Big Child Treasures at none against AtomicClock's shown. Big Child Treasures also leads on iOS requirement (14.0 vs 17.4). On price, update cadence, in-app purchases 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
Both are free to download. AtomicClock sells 1 one-off in-app purchase and Big Child Treasures sells 2 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.
AtomicClock ships an update monthly, Big Child Treasures every 5 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.
| Parameter | AtomicClock | Big Child Treasures |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5.6K ratings) — better | — |
| Positive reviews | 84.3% of reviews | — |
| Number of ratings | 5.6K — better | — |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.4 | 14.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Timo Partl | Diaple Networking SL |
Bugs and requests
AtomicClock
Reported bugs
3 issues- Crashes on certain iOS versions
- Occasional freezing of hands
- Countdown timer sound not working
Requested features
5 requests- Add GMT/dual time display
- Implement widget support
- Add different second hand sounds
- Allow setting background color to match watch
- Include alarm/timer functionality
Big Child Treasures
Not enough reviews yet to summarise bugs or requests.
In-app purchases
AtomicClock
- Lifetime Pro Version$6.99
Big Child Treasures
- BCT Lite Subscription$24.991 Year
- BCT Premium$79.991 Year
Questions
Is AtomicClock free?
Is Big Child Treasures free?
Do AtomicClock or Big Child Treasures have ads?
Which is updated more often, AtomicClock or Big Child Treasures?
Other comparisons















