AtomicClock vs Ellebogen
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
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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.
Ellebogen
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ELLEBOGEN app is a good tool that helps Sailboat and leisure boat owners to solve vibration problems on their marine engines. This tool can help on the following areas. 1.- Finding the exact idle speed of your engine. Tachometer panels are often unprecise. This app lets you measure the vibration of your engine using the internal accelerometer of your mobile phone. Below a presentation of the vibration measurement results. Each peak indicates the vibration orders of the engine. The higher peak is the firing order. This peak will allow us to know the rpm’s of the engine. The firing order of the engine is obtained by dividing number of cylinders by 2. For example a 4 cyl engine the firing order is the number 2, If the engine has 3 cylinders, the firing order is the 1.5. Lets imagine that you have a 3 cyl engine, once you have done a vibration measurement using the Ellebogen App, you find that the highest peak is at 20.06Hz. If we divide this result by the firing order (1.5) we will get 13.37Hz (802rpm) , This is to say: 20.06/1,5=13,37 Hz 13.37x60= 802rpm. 2.- Select the engine mount. Based on the measurement, weight of the engine and % of isolation that we want to achieve at idle, the app can select the correct marine engine mount for the application. 3.- Measure the performance of the marine engine mounts. Using the Ellebogen external accelerometer, the app allows you to measure the performance of isolation of your current engine mounts. ELLEBOGEN™ application engineers are the developers of this APP. If you need further assistance, our team of vibration isolation application engineers are at your service. IMPORTANT FACTS ABOUT THIS APP: SIMPLE: This app is easy to use. QUICK: With few clicks you can find the marine engine mount that you require. SAFE: Privacy is first. We take seriously this matter and will never give your data to third parties. 0 PUBLICITY: this app is free and will always be free. We are not going to sell ads or introduce subscription fees. RELIABLE: It works even on the weakest mobile connections. SUPPORT: You can contact us on info@ellebogen.com or even send us these measurements through other Social Media. We will help you.
Screenshots
Verdict
The clearest difference is in-app purchases: Ellebogen at none against AtomicClock's 1. Ellebogen also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.4). AtomicClock's advantage is update cadence (monthly vs every 3 months). On price 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. Ellebogen asks for nothing beyond the download.
AtomicClock ships an update monthly, Ellebogen every 3 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.
| Parameter | AtomicClock | Ellebogen |
|---|---|---|
| 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 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Timo Partl | Ellebogen S.L. |
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
Ellebogen
Not enough reviews yet to summarise bugs or requests.
In-app purchases
AtomicClock
- Lifetime Pro Version$6.99
Ellebogen
No in-app purchases









