SignalClock Lite vs Always On Display
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 ...
Always On Display
Customize your device's lock screen with a variety of clock styles, including digital and analog options. Adjust colors, sizes, and add a second time zone for a personalized display. Optimize for OLED screens to minimize battery impact.
- Digital and analog clock display
- Customizable clock size and colors
- Second time zone support
- Battery indicator ring
- Screen dimming for bedside use
- OLED optimization
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This app allows you change the size of the clock, to have both a digital and analog clock displayed at the same time, a second time zone, to add colors inside the clock digits, and more. There is an emoji that you can change it's size on the screen. It has a battery indicator ring that changes color depending on the battery level and you can also change it's size. You can also make the screen really dim so that you can have it displayed by your bedside. Choosing dark colors and images ensures that the battery will not be greatly affected utilising OLED technology device panels found in later model iPhones. For changes or requests you can always contact us and we will try our best to implement it for you in the next update! *Disclaimer - This version of the will not display icons related to calls or messages within its screen. a href="https://www.freepik.com/vectors/background" Background vector created by starline - www.freepik.com a href="https://www.freepik.com/vectors/star" Star vector created by macrovector - www.freepik.com
Screenshots
Verdict
The clearest difference is price: SignalClock Lite at Free against Always On Display's $2.99. SignalClock Lite also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.6). Always On Display's advantage is review sentiment (33% vs 0%). On update cadence, ads and in-app purchases 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
SignalClock Lite is free to download; Always On Display costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SignalClock Lite ships an update every 7 months, Always On Display every 4 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | SignalClock Lite | Always On Display |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 1.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 33.3% of reviews — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 7 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 28 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Masafumi Endoh | Jim Kandias |
Customer experience
SignalClock Lite
Always On Display
In-app purchases
SignalClock Lite
No in-app purchases
Always On Display
No in-app purchases
Questions
Is SignalClock Lite free?
Is Always On Display free?
Do SignalClock Lite or Always On Display have ads?
Which is updated more often, SignalClock Lite or Always On Display?
Other comparisons
