Comparison

CUE! Time Signal Sync vs Atomic Exact Time

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CUE! Time Signal Sync

This app provides highly accurate time synchronization using NTP, offering visual and auditory cues for precise second-level timing. It's ideal for professionals who need to catch exact moments, such as during events, filming, or technical work.

Highlights
  • 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
Features
Read full description

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.

About

Atomic Exact Time

This app precisely calibrates your device's clock against internet time sources, accounting for network delays. It offers a full-screen display with millisecond accuracy, detailed reports on clock deviation, and a precision alarm. Ideal for professionals and enthusiasts requiring exact timing.

Highlights
  • Millisecond accurate clock display
  • Device offset status
  • Network latency and drift reports
  • Precision alarm
  • Timecode and markers
  • Widgets
  • Multiple clock themes
Features
Read full description

How many milliseconds is your device clock off? Atomic Exact Time compares your device with multiple internet time sources, accounts for network latency and outliers, then displays a calibrated live clock. Highlights: - Full-screen clock with milliseconds - Clear device-offset status - Offset, RTT, jitter, confidence and drift reports - Reference-time Precision Alarm - 24/25/30/50/60 fps timecode and markers - Widgets - Midnight, LED, Lab and Atomic themes - Synchronization history and CSV export - English and Turkish interface Built for broadcasters, event crews, athletes, labs, exams and anyone who needs to start on the exact second. Atomic Exact Time Pro unlocks automatic calibration, Precision Alarm, the full accuracy report, timecode, export, widget themes and every Pro appearance. The free experience includes banner ads; Pro removes all ads. Pro is available as a one-time Lifetime purchase or an auto-renewing monthly subscription with a 7-day free trial for eligible customers. The App Store shows the current localized price and billing period before confirmation. Subscription payment is charged to your Apple ID account and renews unless canceled at least 24 hours before the period ends. Manage or cancel a subscription in your App Store account settings. No account. No sale of personal data. Privacy: https://atomicexactime.shortmoxagency.com.tr/en/privacy Terms: https://atomicexactime.shortmoxagency.com.tr/en/terms Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CUE! Time Signal Sync4 screens
Atomic Exact Time4 screens

Verdict

The call

The clearest difference is ads: Atomic Exact Time at none against CUE! Time Signal Sync's shown. CUE! Time Signal Sync's advantage is update cadence (every 8 days vs every 6 weeks). On price, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CUE! Time Signal Sync sells 1 one-off in-app purchase and Atomic Exact Time sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CUE! Time Signal Sync ships an update every 8 days, Atomic Exact Time every 6 weeks. Both last shipped on October 14, 2026.

Scorecard2 real differences · 8 level
CUE! Time Signal Sync versus Atomic Exact Time: the parameters behind the verdict, then further details
ParameterCUE! Time Signal SyncAtomic Exact Time
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 8 days — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.616.4 — better
Further details — not scored
Size6 MB46 MB
Age rating4+4+
DeveloperTAKAO OGASAWARASUPER KIM KIMYA VE TEKSTIL SANAYI TICARET LIMITED SIRKETI

Customer experience

CUE! Time Signal Sync

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Atomic Exact Time

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

CUE! Time Signal Sync

One-time1
  • Remove Ads$2.99
1 purchases

Atomic Exact Time

Subscriptions1
  • Atomic Exact Time Pro7 Days trial$2.991 Month

Questions

Is CUE! Time Signal Sync free?
CUE! Time Signal Sync is free to download, with in-app purchases available.
Is Atomic Exact Time free?
Atomic Exact Time is free to download, with in-app purchases available.
Do CUE! Time Signal Sync or Atomic Exact Time have ads?
CUE! Time Signal Sync shows ads; Atomic Exact Time does not.
Which is updated more often, CUE! Time Signal Sync or Atomic Exact Time?
CUE! Time Signal Sync ships an update every 8 days, and Atomic Exact Time every 6 weeks. Most recently, CUE! Time Signal Sync was updated on October 14, 2026 and Atomic Exact Time on October 14, 2026.

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