# SignalClock Lite vs Big Live Clock

The clearest difference is in-app purchases: SignalClock Lite at none against Big Live Clock's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Big Live Clock sells 4 in-app purchases, starting at $2.99 per month. SignalClock Lite asks for nothing beyond the download.

SignalClock Lite ships an update every 7 months, Big Live Clock every 4 months. The most recent releases landed on September 9, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | SignalClock Lite | Big Live Clock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 28 MB | 18 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masafumi Endoh](https://appshunter.io/developer/757354996) | [Asadullah Yaseen](https://appshunter.io/developer/1513646196) |

## 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


### Big Live Clock

[App page](https://appshunter.io/ios/app/big-live-clock-wallpapers-time/id1518735708)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month Pro | $2.99 | per month |
| Three Month Pro | $9.49 | per 3 months |
| One Year Pro | $17.99 | per year |
| Life Time -One Time Purchasing | $24.99 | one-time |


## Frequently asked questions

### Is SignalClock Lite free?

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

### Is Big Live Clock free?

Big Live Clock is free to download, with in-app purchases available.

### Do SignalClock Lite or Big Live Clock have ads?

Neither SignalClock Lite nor Big Live Clock shows ads.

### Which is updated more often, SignalClock Lite or Big Live Clock?

SignalClock Lite ships an update every 7 months, and Big Live Clock every 4 months. Most recently, SignalClock Lite was updated on September 9, 2026 and Big Live Clock on September 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.*