wwvbgps

WWVB emulator using GPS time

Free · Designed for iPad. Not verified for macOS.

Emulates WWVB longwave time broadcast using DAC harmonics to produce a very weak signal at the carrier frequency of 60KHz. This allows a radio-controlled clock (e.g. many Casio watches), to receive the signal when placed near the speaker of the iOS device. There are other apps that do this but they don't seem to use the GPS time signal, instead relying on the system clock which will drift when it doesn't have internet for a long time (e.g. at sea) because iOS does not appear to use GPS time for system clock updates. This app specifically avoids using the system clock and prefers GPS time. To force using GPS, try it in Airplane mode, with all the radios off. Tested with Casio GW M5610U.

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Added a message to remind users to switch to Airplane Mode. No functional changes.

Version 1.05

The developer, Ello Skelling Productions, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Ello Skelling Productions
    Size
    • 706.6 KB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • iPad
      Requires iPadOS 17.6 or later.
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      • ⁨iPad mini 4 Wi‑Fi + Cellular⁩
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      • ⁨iPad (7th generation) Wi‑Fi + Cellular⁩
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      • ⁨iPad Pro (11-inch) (3rd generation) Wi‑Fi + Cellular⁩
      • ⁨iPad Pro (12.9-inch) (5th generation) Wi-Fi + Cellular⁩
      • ⁨iPad mini (6th generation) Wi-Fi + Cellular⁩
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      • ⁨iPad Pro (11‑inch) (4th generation) Wi‑Fi + Cellular⁩
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      • ⁨iPad Air 11-inch (M2) Wi-Fi + Cellular⁩
      • ⁨iPad Air 13-inch (M2) Wi-Fi + Cellular⁩
      • ⁨iPad Pro 11-inch (M4) Wi-Fi + Cellular⁩
      • ⁨iPad Pro 13-inch (M4) Wi-Fi + Cellular⁩
      • ⁨iPad mini (A17 Pro) Wi-Fi + Cellular⁩
      • ⁨iPad (A16) Wi-Fi + Cellular⁩
      • ⁨iPad Air 11-inch (M3) Wi-Fi + Cellular⁩
      • ⁨iPad Air 13-inch (M3) Wi-Fi + Cellular⁩
      • ⁨iPad Pro 11-inch (M5) Wi-Fi + Cellular⁩
      • ⁨iPad Pro 13-inch (M5) Wi-Fi + Cellular⁩
      • ⁨iPad Air 11-inch (M4) Wi-Fi + Cellular⁩
      • ⁨iPad Air 13-inch (M4) Wi-Fi + Cellular⁩
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 (c) Ello Skelling Productions
  • Privacy Policy

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