Atomic Clock PRO vs Clock Watching
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Atomic Clock PRO
Get the most accurate time from an official atomic clock server. This app automatically detects your time zone and allows custom backgrounds. Easily switch between digital and analog clock displays with a swipe.
- Exact time from atomic clock
- Automatic time zone recognition
- Customizable background images
- Digital and analog clock modes
- Optional sound alerts
- Color customization
Read full descriptionHide full description
Get accurate time on your iPhone and iPad by syncing with an official atomic clock time server. Download now for free! If you want exact time, a precise time reference, or an easy-to-read clock display, this app is designed for that. It automatically recognizes your time zone, lets you use one of your own photos as the background, and lets you switch between a digital display and a classic analog clock with a simple swipe. It is ideal as a personalized desk clock, a reliable travel companion, an everyday reference clock, or when you need exact time to set a mechanical watch accurately. Overview: - Accurate and precise time synced from an official atomic clock time server - Automatically recognizes your time zone and shows the current local time - Choose digital, analog, or combined analog and digital clock displays - Swipe to switch between clock displays - Resize the digital clock for a larger or smaller display - Includes time (hours, minutes, and seconds), date, and day of the week (optional) - Optional sound every second or every minute - Change clock and background colors - Use your own photos as background images - Choose atomic clock sync or your device's system clock - Option to keep the screen awake while the app is open - Works in portrait and landscape mode - For iPhone and iPad Helpful for: - A personalized desk clock at home or at work - Getting the correct local time while traveling - Setting a mechanical watch accurately - A clear reference clock when you want accurate, easy-to-read time PLEASE NOTE: You can switch between the analog and digital clock by swiping left or right across the clock. Disclaimer: Please note that whilst all reasonable care has been taken to make this application as accurate as possible we can not guarantee 100% accuracy. Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Clock Watching
This app displays the current time using a four-digit digital format for hours and minutes. An optional in-app purchase adds animated seconds with pendulums that fall or explode as each minute completes.
- Four-digit time display
- Hour and minute tracking
- Animated seconds (in-app purchase)
- Pendulum animation
- Minute completion effects
Read full descriptionHide full description
It is a digital clock that shows the time, using four digits to display both hours and minutes. You can watch a multitude of minutes and hours progress through time. Add animated seconds to your flanks with an In-App Purchase. Pendulums will move into place with each second until the minute is complete. The pink pendulums will then fall or explode offscreen to allow the sequence to repeat itself. Minute after minute.
Screenshots
Verdict
The clearest difference is ads: Clock Watching at none against Atomic Clock PRO's shown. Clock Watching also leads on review sentiment (100% vs 73%) and update cadence (every 3 weeks vs every 3 months). Atomic Clock PRO's advantage is ratings volume (10K vs 1) and iOS requirement (15.6 vs 17.0). On price, in-app purchases, monetization model 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. Atomic Clock PRO sells 2 in-app purchases, starting at $1.99 per month and Clock Watching sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Clock Watching holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Atomic Clock PRO has 10K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 73% of Atomic Clock PRO's written reviews are positive against 100% of Clock Watching's.
Atomic Clock PRO ships an update every 3 months, Clock Watching every 3 weeks. The most recent releases landed on September 28, 2026 and June 1, 2026 respectively.
| Parameter | Atomic Clock PRO | Clock Watching |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (10K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 72.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 10K — better | 1 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple TV — better |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Brachmann Online Marketing GmbH & Co. KG | David Thorpe |
Customer experience
Atomic Clock PRO
Clock Watching
Bugs and requests
Atomic Clock PRO
Reported bugs
3 issues- Second hand occasionally runs in reverse
- Digital clock display cuts off on some devices
- Inconsistent behavior when switching between clock types
Requested features
3 requests- Customizable clock face options
- Ability to set widget on home screen
- Sync with system clock to automatically update time
Clock Watching
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Atomic Clock PRO
- Premium$1.991 Month
- Remove Ads$5.99
Clock Watching
- Add Animated Seconds$1.99
Questions
Is Atomic Clock PRO free?
Is Clock Watching free?
Which has better reviews, Atomic Clock PRO or Clock Watching?
Do Atomic Clock PRO or Clock Watching have ads?
Which is updated more often, Atomic Clock PRO or Clock Watching?
Other comparisons















