Atomic Sync : Radio Watch Time
Serhii Sereda Utilities iPhoneiPadiPod touch
Atomic Sync : Radio Watch Time is a free Utilities app for iPhone and iPad by Serhii Sereda. Rated 2.5/5 from 2 ratings. Requires iOS 15.0.
- Rating
- 2.5
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 27 MB
- Age 4+
- Updated
- Apr 22
- 2026 · v1.0.2
Screenshots
About Atomic Sync : Radio Watch Time
Sync Your Radio-Controlled Watch in Minutes! Atomic Sync emulates official atomic time signals to synchronize your radio-controlled watch — no tower reception needed. Works with Casio G-Shock, Citizen, Lacrosse, Junghans, Braun and other atomic watches. SUPPORTED TIME SIGNALS: • WWVB (60 kHz) — United States • DCF77 (77.5 kHz) — Germany / Europe • JJY40 / JJY60 (40/60 kHz) — Japan • MSF (60 kHz) — United Kingdom • BPC (68.5 kHz) — China • RBU (66.66 kHz) — Russia HOW IT WORKS: 1. Select your region or time signal 2. Place your phone near your watch (see visual guide) 3. Tap Start and wait 1-10 minutes 4. Your watch syncs to atomic time — done! BEAST MODE (Premium Sync): Need faster sync? Watch a short rewarded video to activate Beast Mode — our enhanced signal algorithm for quicker, more reliable synchronization. Unlimited use, no subscriptions. SMART REMINDERS: Set local notifications to remind you to sync your watch daily, weekly, bi-weekly, monthly or custom. Never lose atomic precision again. OFFLINE & ACCURATE: • All signals generated locally — no internet required for sync • Optional NTP time source sync for maximum accuracy when online • Last known time cached for offline use USER-FRIENDLY DESIGN: • Dark/Light theme (auto-switch) • Universal positioning guide with animated signal waves • Simple 4-step flow, no brand selection needed • 16 languages supported PRIVACY FIRST: • No location access required • No personal data collected • No account registration needed COMPATIBLE WITH: Casio G-Shock, Pro Trek, Edifice • Citizen Eco-Drive • Lacrosse Technology • Junghans Mega • Braun watches • And any watch supporting WWVB/DCF77/JJY/MSF/BPC signals. TIPS FOR SUCCESS: • Use maximum phone volume during sync • Keep phone and watch still, 2-10 cm apart • Avoid metal surfaces and electronic interference DISCLAIMER: Atomic Sync is a third-party tool and is not affiliated with, endorsed by, or connected to Casio, Citizen, or any watch manufacturer. Time signal emulation is for personal use only. Success depends on watch model, environment, and device hardware.
What’s new
Version 1.0.2 · Updated April 22, 2026
• Fixed several bugs to improve app stability and performance. • Under-the-hood optimizations for a smoother user experience.
App privacy
The developer, Serhii Sereda, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
Used for: Third-Party Advertising, Analytics
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data, Performance Data
Used for: Analytics
Alternatives to Atomic Sync : Radio Watch Time
Looking for apps like Atomic Sync : Radio Watch Time? Here are 6 similar apps on the App Store. The highest rated is Actions (4.8/5), and 5 of the 6 are free to download.
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CITIZEN Eco-Drive Bluetooth S
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Clockwork - Watch app
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Atomic Sync : Radio Watch Time | 2.5 / 5 (2 ratings) | Free | April 22, 2026 | |
| CITIZEN Eco-Drive Bluetooth S | – | Free | Jun 15, 2026 | Compare |
| Clockwork - Watch app | 4.4 / 5 (24) | Free | Sep 7, 2026 | Compare |
| Atomic Clock PRO | 4.7 / 5 (10,223) | Free | Jun 30, 2026 | Compare |
| Magnetometer | 4.4 / 5 (13) | 0.99 USD | Oct 29, 2025 | Compare |
| Ampere: Battery Charge Test | 3.6 / 5 (12) | Free | Oct 10, 2026 | Compare |
| Actions | 4.8 / 5 (517) | Free | Jun 8, 2026 | Compare |