# CUE! Time Signal Sync — Accurate NTP Clock & Voice > NTP-based time synchronization with precise second cues and voice alerts. (iPhone/iPad app by TAKAO OGASAWARA.) - Source: https://appshunter.io/ios/app/cue-time-signal-sync/id6769318519 (this page in markdown: same URL + `.md`) - Developer: [TAKAO OGASAWARA](https://appshunter.io/developer/1895349758) - Category: Utilities, Productivity - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 17.6 · 6 MB - Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Polish, European Portuguese, Chinese (Simplified, China) and 5 more - Released: 2026-05-20 - Data updated: 2026-08-29 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/cue-time-signal-sync/id6769318519/reviews.md ## What is CUE! Time Signal Sync? Make every 00-second moment easier to catch. CUE! is a time signal app designed for timer setup and field time checks. With NTP-based time correction, 57/58/59/00-second countdowns, signal sounds, haptics, and voice announcements, CUE! helps you catch the exact 00-second moment. It is useful for temporary illumination timer panels, facility equipment, electrical work, lighting and audio systems, events, exhibitions, filming, streaming, stage work, live shows, store displays, and any situation where second-level timing matters. ■ CUE!’s Time Correction Logic CUE! is not a clock that simply displays the result of a single NTP request. NTP responses can vary depending on network routes, congestion, Wi-Fi, mobile networks, and device conditions. CUE! collects multiple NTP samples during startup and manual sync, checking each sample’s round-trip time (RTT) and time offset. Slow responses and offset outliers are filtered out. CUE! prioritizes stable samples. The selected NTP time is linked to the device’s monotonic clock at the moment it is received. After that, the in-app time display advances by adding elapsed monotonic time to the NTP reference. During automatic sync, CUE! may keep the previous NTP reference instead of applying a low-confidence result. This helps prevent sudden jumps caused by unstable network responses. ■ 57/58/59/00-Second Cues CUE! starts its countdown at 57 seconds every minute. 57 sec: 3 seconds before 58 sec: 2 seconds before 59 sec: 1 second before 00 sec: CUE! At 00 seconds, the time and cue display change color, making the exact moment easy to recognize visually. It helps when setting timer panels, checking lighting and audio timing, starting streams or recordings, managing events, and confirming 00-second timing in the field. ■ Sound, Haptics, and Voice CUE! can notify you at 57/58/59/00 seconds with signal sounds and haptics. Signal sound can be turned on or off. Use sound when allowed, or turn it off and rely on the display and haptics. Haptics use different patterns for warning seconds and the exact 00-second cue. Haptics can also be turned on or off. Voice announcements help you understand timing even when your iPhone is in your pocket. Choose announcements every 1 minute, 15 minutes, 30 minutes, or 1 hour. CUE! supports English, Japanese, Simplified Chinese, Traditional Chinese, and Korean. Other languages fall back to English. ■ Landscape Display Turn your iPhone sideways to use a larger clock display. This is useful when placing your iPhone on a stand, near a lighting console, audio mixer, or timer panel. ■ Field Features CUE! includes: ・Display dimmer ・Keep-awake mode ・Rear flashlight control ・Cue color toggle ・Haptics ON/OFF ・Signal sound ON/OFF ・Portrait and landscape layouts ・Remove ads option ■ Recommended For ・Temporary illumination timer setup ・Facility equipment time setting ・Electrical work and field timing ・Lighting and audio timing checks ・Events, exhibitions, stages, and live shows ・Streaming, recording, and filming start cues ・Store display and timer control checks ・Checking every 00-second moment clearly ・Using a clock that always shows seconds ・NTP-based time checking CUE! is a field time signal app that supports the exact “now.” ■ Free to Use CUE! is free to download. Banner ads are shown in the app. To avoid interrupting important timing moments, CUE! does not use interstitial ads. You can remove banner ads with an in-app purchase. ■ Notes CUE! uses public NTP servers to support its in-app time display. However, differences may occur due to network conditions, device status, screen rendering, audio output, haptics, speaker latency, or Bluetooth device latency. CUE! does not guarantee millisecond-level synchronization, measurement accuracy, broadcast timing, or legal proof of time. However, it can be a useful support tool for timer setup, 00-second alignment, and second-level time checks in field environments. ## Key features - NTP-based time correction - 57/58/59/00-second countdowns - Signal sounds and haptics - Voice announcements - Landscape display mode - Display dimmer and keep-awake mode ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $2.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/cue-time-signal-sync/id6769318519/reviews.md ### 5/5 — シンプルで良い。 *2026-08-12* 秒の表示がわかりやすい。時刻に狂いがない。 ## Frequently asked questions about CUE! Time Signal Sync ### What is CUE! Time Signal Sync? CUE! Time Signal Sync is a utility app designed for precise time synchronization using NTP. It provides visual, haptic, and voice cues to help users catch exact 00-second moments for various professional applications. ### How does CUE! Time Signal Sync ensure accurate time? CUE! Time Signal Sync employs advanced NTP time correction logic. It collects multiple NTP samples, filters out slow or offset outliers, and links the selected NTP time to the device's monotonic clock for stable and accurate display. ### What kind of cues does CUE! Time Signal Sync offer? The app provides 57/58/59/00-second countdowns with visual changes at the 00-second mark. It also offers customizable signal sounds, distinct haptic patterns for warnings and cues, and optional voice announcements. ### Can CUE! Time Signal Sync be used in loud environments? Yes, CUE! Time Signal Sync offers multiple notification methods. In addition to signal sounds, it provides haptic feedback and voice announcements, making it suitable for use even when audio cues might be missed. ### Does CUE! Time Signal Sync have ads? Yes, CUE! Time Signal Sync contains advertisements. Users have the option to remove ads through an in-app purchase. ### What devices is CUE! Time Signal Sync compatible with? CUE! Time Signal Sync is available for iPhone and iPad devices. It supports both portrait and landscape orientations for flexible usage. ### How often is CUE! Time Signal Sync updated? The app was last updated on August 10, 2026, with version 1.2.3. This indicates a relatively active development cycle, suggesting regular improvements and bug fixes. ### What is the age rating for CUE! Time Signal Sync? CUE! Time Signal Sync has an age rating of 4+. This indicates it is suitable for a wide range of users, including children, with no mature content. ## Version history (last 5 releases) ### 1.2.3 — 2026-08-10 CUE! Time Signal is now more energy efficient. - Reduced unnecessary screen updates while maintaining NTP-aligned second display accuracy - Optimized audio processing for time signal sounds and voice announcements - Reduced background processing when voice announcements are turned off - Improved NTP resynchronization when returning to the app - Other stability improvements The visual design, controls, and precise time signal behavior remain unchanged. ### 1.2.2 — 2026-08-01 CUE! Time Signal has been improved for an even better experience. - Added native iPad support with optimized portrait and landscape layouts - Added Live Activity support on iPad - Added Dynamic Island and Lock Screen time display support on compatible iPhone models - Added Small, Medium, and Large display-size options for Live Activities - Improved the accuracy and layout of the Live Activity clock - Improved banner ad sizing on iPad and Mac - Hid Dynamic Island and Live Activity settings when running on Mac - Other minor display and behavior improvements ### 1.2.1 — 2026-07-24 CUE! Time Signal has been improved for a better experience. - Added Live Activity support for Dynamic Island and the Lock Screen, displaying the current time in hours, minutes, and seconds even after leaving the app - Added settings to turn the Dynamic Island display on or off and select a Small, Medium, or Large time display - Improved Live Activity accuracy through NTP synchronization - Added support for French, German, Spanish, Italian, Portuguese, Dutch, Polish, Turkish, Thai, and Vietnamese - Added time announcement support for the newly added languages - Added an NTP sync log inside the settings screen - Improved the Mac layout and hid iPhone-specific controls when running on Mac - Improved time signal sound and voice announcement behavior while the screen is off - Adjusted the countdown display behavior when Count Color is turned off - Other minor display and behavior improvements ### 1.1 — 2026-05-26 Fixed the promotional website URL displayed in the app. Updated some App Store metadata. ### 1.0 — 2026-05-20 No release notes. ## More apps by TAKAO OGASAWARA - [FRAQ CALC](https://appshunter.io/ios/app/fraq-calc/id6763510684) - [FRAQ CALC Lite](https://appshunter.io/ios/app/fraq-calc-lite/id6763718937) - [SAI Mini](https://appshunter.io/ios/app/sai-mini/id6764375544) - [SAI+](https://appshunter.io/ios/app/sai-plus/id6764575985) - [VOLTsボルツ・電工システム屋計算・現場便利ツール](https://appshunter.io/ios/app/volts/id6767616532) - [CUTs! Material Cut List](https://appshunter.io/ios/app/cuts-material-cut-list/id6768017352) All apps by TAKAO OGASAWARA: https://appshunter.io/developer/1895349758 --- *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 2026-08-29.*