SignalClock Lite vs Eternal Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SignalClock Lite
This utility app displays a digital clock with a time signal function using local notifications. It offers multiple sound sets and font options. The free version has limitations on scheduling time signals to half-hour intervals.
- Local notification time signals
- Multiple sound sets
- iOS 10 font support
- Half-hour signal scheduling (free edition)
- Digital clock display
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Digital clock has time signal function based on Local Notification Center. It’s free edition of “SignalClock”. 5 different signal sound sets. All fonts iOS 10 supports are available in clock. 5 tone type are available in all sound file sets. Free edition limitations : - Able to schedule time signals on half hour unit ex. 00:00, 00:30, 01:00 ...
Eternal Clock
A minimalist digital clock that displays the time with no distractions. It offers a clean interface with subtle visual cues like a sun, moon, or mealtime hints, all without ads, data collection, or notifications.
- Ad-free experience
- No data collection
- No push notifications
- Minimalist interface
- Subtle visual cues (sun, moon, food)
- No settings or permissions required
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A pure digital clock. Nothing more, nothing less. It does one thing perfectly: shows the time. - No ads - No data collection - No push notifications - No permissions - Not even settings Sometimes a sun, sometimes a moon. At mealtimes, a playful hint of food. Still, nothing more than time — free from risks, interruptions, or hidden fees.
Screenshots
Verdict
The clearest difference is update cadence: Eternal Clock at weekly against SignalClock Lite's every 7 months. On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SignalClock Lite ships an update every 7 months, Eternal Clock weekly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | SignalClock Lite | Eternal Clock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 7 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 28 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Masafumi Endoh | Daehyeon Shin |
Customer experience
SignalClock Lite
Eternal Clock
In-app purchases
SignalClock Lite
No in-app purchases
Eternal Clock
No in-app purchases
Questions
Is SignalClock Lite free?
Is Eternal Clock free?
Do SignalClock Lite or Eternal Clock have ads?
Which is updated more often, SignalClock Lite or Eternal Clock?
Other comparisons
