# TimeSignals vs GMT Time

The clearest difference is update cadence: TimeSignals at every 4 weeks against GMT Time's every 28 months. GMT Time's advantage is rating (4.7 vs 4.5) and monetization model (ad-supported vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. TimeSignals sells 2 one-off in-app purchases and GMT Time sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

GMT Time holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: GMT Time has 38 ratings behind it against 6, so its average is the more settled of the two.

TimeSignals ships an update every 4 weeks, GMT Time every 28 months. The most recent releases landed on November 10, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | TimeSignals | GMT Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/timesignals/id629903077/reviews) | **[4.7 (38 ratings)](https://appshunter.io/ios/app/gmt-time/id1613023691/reviews)** |
| Number of ratings | 6 | **38** |
| Positive reviews | 49.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 weeks** | Every 28 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 334 MB | 26 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yasushi Sakai](https://appshunter.io/developer/454423149) | [MingChun Chien](https://appshunter.io/developer/1181368598) |

## What reviewers say

### TimeSignals

[App page](https://appshunter.io/ios/app/timesignals/id629903077)

This app provides an hourly time signal feature for your iPhone, offering gentle reminders with customizable chimes or spoken voices. Schedule signals in 30-minute intervals, and they will play even when the app is closed, unless Do Not Disturb is active.

**Highlights:** Hourly time signal, Customizable voice options, Chime and cuckoo clock sounds, Scheduled alerts, Background operation, Adjustable intervals

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads. | $1.99 | one-time |
| Use of User-Created Sounds | $2.99 | one-time |


### GMT Time

[App page](https://appshunter.io/ios/app/gmt-time/id1613023691)

This app provides accurate GMT time using NTP protocol and TrueTime framework. It offers a timekeeping function, allows setting time between two locations for itineraries, and supports multiple languages. Enjoy precise timekeeping with 1/100 second accuracy.

**Highlights:** Accurate GMT time display, NTP and TrueTime framework integration, Timekeeping function (on/off), Set time between two locations, Multi-language support (English, Japanese, Chinese, Cantonese), 1/100 second accuracy

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Time117 Pro | $0.99 | one-time |


## Frequently asked questions

### Is TimeSignals free?

TimeSignals is free to download, with in-app purchases available.

### Is GMT Time free?

GMT Time is free to download, with in-app purchases available.

### Which has better reviews, TimeSignals or GMT Time?

GMT Time is rated higher. TimeSignals averages 4.5 out of 5 from 6 ratings, while GMT Time averages 4.7 from 38 ratings.

### Do TimeSignals or GMT Time have ads?

Both TimeSignals and GMT Time show ads.

### Which is updated more often, TimeSignals or GMT Time?

TimeSignals ships an update every 4 weeks, and GMT Time every 28 months. Most recently, TimeSignals was updated on November 10, 2026 and GMT Time 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.*