# SignalClock Lite vs Always On Display

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.

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.

## The numbers

| Metric | SignalClock Lite | Always On Display |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/always-on-display/id1554659170/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | **Free** | Paid |
| Size | 28 MB | 19 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Masafumi Endoh](https://appshunter.io/developer/757354996) | [Jim Kandias](https://appshunter.io/developer/398630199) |

## What reviewers say

### SignalClock Lite

[App page](https://appshunter.io/ios/app/signalclock-lite/id908918011)

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.

**Highlights:** Local notification time signals, Multiple sound sets, iOS 10 font support, Half-hour signal scheduling (free edition), Digital clock display

**Features:** macOS Compatibility

**In-app purchases:** none


### Always On Display

[App page](https://appshunter.io/ios/app/always-on-display/id1554659170)

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.

**Highlights:** Digital and analog clock display, Customizable clock size and colors, Second time zone support, Battery indicator ring, Screen dimming for bedside use, OLED optimization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SignalClock Lite free?

SignalClock Lite is free to download, with no in-app purchases.

### Is Always On Display free?

Always On Display costs $2.99, with no in-app purchases.

### Do SignalClock Lite or Always On Display have ads?

Neither SignalClock Lite nor Always On Display shows ads.

### Which is updated more often, SignalClock Lite or Always On Display?

SignalClock Lite ships an update every 7 months, and Always On Display every 4 months. Most recently, SignalClock Lite was updated on November 1, 2026 and Always On Display on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*