# AtomicClock: NTP Time — Precision clock reference > Accurate time display synchronized with NTP servers. (iPhone/iPad app by Timo Partl.) - Source: https://appshunter.io/ios/app/atomicclock-ntp-time/id1402993049 (this page in markdown: same URL + `.md`) - Developer: [Timo Partl](https://appshunter.io/developer/1387413672) - Category: Utilities - Price: Free with in-app purchases - Rating: 4.80/5 from 5,497 App Store ratings · 238 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 14 MB - Languages: American English, Albanian, Arabic, Bulgarian, Czech, Danish, Dutch, French (France), German (Germany), Hebrew and 17 more - Released: 2018-07-25 - Data updated: 2026-08-26 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/atomicclock-ntp-time/id1402993049/reviews.md ## What is AtomicClock? AtomicClock shows precise current time from NTP servers in a clear, customizable clock view. Use it as a reliable reference when setting watches, checking timestamps, timing important moments, or comparing local time with network time. Choose a public time server or add your own, then display the time in the format that fits your workflow. Features: • Precise current time from NTP servers • Analog clock display with fluid second hand • Multiple clock faces • Choose time servers or add a custom server • Local time and UTC views • 12-hour and 24-hour modes • Customizable time format • Acoustic ticking • Greenwich Time Signal AtomicClock is a practical reference clock for precise time checks. It displays network time for comparison and does not change your device’s system time. ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime Pro Version | $6.99 | one-time | ## What do users think of AtomicClock? Overall sentiment: positive **Pros** - 🚀 Accurate time - 👍 Highly customizable - 🚀 Precise to the second - 👍 Easy to use - 👍 Helpful for setting watches - 👍 Great for hobbyists and professionals - 👍 Excellent time standard for watches - 👍 Simple and straightforward **Cons** - 🐛 Server connection issues - 🔍 Limited time zone options - 💰 Ads diminish clock view - 🔍 Lacks some advanced features - 🔍 Redundant for some users **Commonly reported bugs** - Crashes on certain iOS versions - Occasional freezing of hands - Countdown timer sound not working **Most requested features** - Add GMT/dual time display - Implement widget support - Add different second hand sounds - Allow setting background color to match watch - Include alarm/timer functionality ## Recent user reviews (10 of 238) All indexed reviews: https://appshunter.io/ios/app/atomicclock-ntp-time/id1402993049/reviews.md ### 5/5 — A needed reference point. *2026-08-11, version 3.6.22* It works. No issues detected at present… ### 5/5 — Best new Atomic Clock I found on the Internet *2026-08-10, version 3.6.22* While the different features and options are fairly basic, this is the simplest to read, gives you the information you really need, like what time is it so it is now my go to for checking time and setting my analog and mechanical clocks and watches. ### 5/5 — Just works! *2026-07-09, version 3.6.22* Been using for years and decided to pay up… It does just what it’s supposed to… great for setting clocks it is!!! ### 5/5 — I like the split second display. *2026-06-06, version 3.6.22* Split second display is desirable. I used radio timing in the 1960’ while in the USAF. So useful that a Cesium-beam frequency standard was flown regularly to our sites. I don’t NEED it, but enjoy it. Thank you. ### 1/5 — Useless app *2026-05-06, version 3.6.19* I purchased this app to use on the top of my phone while I’m in the background working and I’m not able to do that. I got a unprofessional message from one of the developer, which is not something of a professional company. I simply requested a refund and have not received it. I will all install your app as you requested, but please assist me with my refund. ### 1/5 — Useless app *2026-04-16, version 3.6.18* I need to be able to toggle my clock to the top of my iPhone and I can’t. Unless I’m able to do that I wasted my money purchasing this app. ### 5/5 — Great iPhone app for working with radio-controlled watches *2026-03-28, version 3.6.18* This app has the most useful handset designs and display options for the iPhone. I use it to gauge timekeeping for all my watches. And I use it in conjunction with the Clockwave and Junghans apps for setting radio-controlled watches. atomic-clock apps I’ve seen for iPhones. I use this many times every day. It’s a keeper!!! ### 5/5 — Very Helpful App *2026-03-09, version 3.6.18* Being able to sync with different time servers is a great feature. This makes setting watches for a synced time very easy! The unlock for premium gives a lot of options. Simple and clean with many options to customize. ### 4/5 — Minute beep is late *2026-03-09, version 3.6.17* Update: I’ve discovered if “Acoustic Ticking” is enabled the 5-second countdown beeps work correctly. Can you explain why on my iPhone 16 pro max (iOS is up to date) the 5-second beep count to the top of the minute is one second late? The beep starts at 56 seconds and the minute long beeps occurs at 1 second after the 0 minute. Thanks ### 1/5 — Do track me *2026-03-03, version 3.6.17* 5 seconds in the app asked to track me. Immediately deleted it. ## Frequently asked questions about AtomicClock ### Does AtomicClock have ads? Yes, AtomicClock contains advertisements. These ads may sometimes diminish the clock view, as noted by some users. ### What is the user sentiment for AtomicClock? User reviews are overwhelmingly positive, with users praising its accurate time, high customizability, and ease of use. Some minor cons include occasional server connection issues and ads. ### How often is AtomicClock updated? The app was last updated on June 4, 2026, with version 3.6.22. Frequent updates indicate ongoing development and support. ### What devices does AtomicClock support? AtomicClock is available for iPhone, iPad, and iPod touch devices, making it accessible to a wide range of Apple users. ### Is AtomicClock suitable for children? AtomicClock has an age rating of 4+, indicating it is suitable for children and does not contain inappropriate content. ### Can I set my own time servers in AtomicClock? Yes, AtomicClock allows you to choose from public time servers or add your own custom server for synchronization. ### Does AtomicClock change my device's system time? No, AtomicClock displays network time for comparison and does not alter your device's system time. ### What are the main benefits of using AtomicClock? Users find AtomicClock helpful for setting watches precisely, checking timestamps, and timing important moments due to its accuracy and customizable display. ## Version history (last 5 releases) ### 3.6.22 — 2026-06-04 • Improved app reliability and compatibility with latest platform components • General performance and stability improvements ### 3.6.19 — 2026-05-04 Improved existing and added new app translations  Various smaller improvements ### 3.6.18 — 2026-03-09 • Various smaller improvements ### 3.6.17 — 2026-02-16 • Various smaller improvements ### 3.6.16 — 2026-01-19 • Improved App Icon for iOS 26 • Various smaller improvements ## Apps similar to AtomicClock | App | Rating | Price | Category | | --- | --- | --- | --- | | [Alarm Clock - Wake up Music](https://appshunter.io/ios/app/alarm-clock-wake-up-music/id406141511) | 4.6 (35,639) | Free | Utilities | | [Atomic Clock PRO](https://appshunter.io/ios/app/atomic-clock-pro/id899090224) | 4.7 (10,071) | Free | Utilities | | [Atomic Clock (Gorgy Timing)](https://appshunter.io/ios/app/atomic-clock-gorgy-timing/id295302256) | 4.8 (4,949) | $1.99 | Utilities | | [Alarm Clock HD](https://appshunter.io/ios/app/alarm-clock-hd/id476555713) | 4.5 (103,890) | Free | Utilities | | [Flip Clock Pro - time widgets](https://appshunter.io/ios/app/flip-clock-pro-time-widgets/id1181029289) | 4.6 (1,494) | $2.99 | Utilities | | [World Clock Time Zone Widget](https://appshunter.io/ios/app/world-clock-time-zone-widget/id912698955) | 4.7 (30,313) | Free | Utilities | ## More apps by Timo Partl - [WorkingHours • Time Tracker](https://appshunter.io/ios/app/workinghours-time-tracker/id1404035216) - [Diarium Journal: Private Diary](https://appshunter.io/ios/app/diarium-journal-private-diary/id1436044299) - [Coini: Crypto portfolio](https://appshunter.io/ios/app/coini-crypto-portfolio/id1563051934) - [SubTotal: PDF Invoice Maker](https://appshunter.io/ios/app/subtotal-pdf-invoice-maker/id1569053675) All apps by Timo Partl: https://appshunter.io/developer/1387413672 ## Related topics [atomic clock](https://appshunter.io/ios/topics/atomic-clock) · [time sync](https://appshunter.io/ios/topics/time-sync) · [atomic clock app](https://appshunter.io/ios/topics/atomic-clock-app) · [atomic clock pro](https://appshunter.io/ios/topics/atomic-clock-pro) · [exact time](https://appshunter.io/ios/topics/exact-time) · [ntp time](https://appshunter.io/ios/topics/ntp-time) · [atomic clock free](https://appshunter.io/ios/topics/atomic-clock-free) · [internet time](https://appshunter.io/ios/topics/internet-time) · [gmt clock](https://appshunter.io/ios/topics/gmt-clock) · [utc time](https://appshunter.io/ios/topics/utc-time) · [exact time clock](https://appshunter.io/ios/topics/exact-time-clock) · [real time clock](https://appshunter.io/ios/topics/real-time-clock) · [clocksync](https://appshunter.io/ios/topics/clocksync) · [digital clock utc](https://appshunter.io/ios/topics/digital-clock-utc) · [binary clock time](https://appshunter.io/ios/topics/binary-clock-time) · [atomic clock signal](https://appshunter.io/ios/topics/atomic-clock-signal) · [atomic clock sync](https://appshunter.io/ios/topics/atomic-clock-sync) · [unix time utc](https://appshunter.io/ios/topics/unix-time-utc) · [clock wave](https://appshunter.io/ios/topics/clock-wave) · [time](https://appshunter.io/ios/topics/time) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*