# Radio Wave Sync vs TimeWave

Radio Wave Sync and TimeWave both sit at 4.5 stars, but that hides the real split: 61% of Radio Wave Sync's written reviews are positive against 0% of TimeWave's. Radio Wave Sync also leads on ratings volume (1K vs 18) and iOS requirement (13.0 vs 15.0). TimeWave's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On price, rating, in-app purchases and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.5 for Radio Wave Sync against 4.4 for TimeWave. That said, the two scores are not equally well evidenced: Radio Wave Sync has 1K ratings behind it against 18, so its average is the more settled of the two. Written reviews are what separate them: 61% of Radio Wave Sync's written reviews are positive against 0% of TimeWave's.

Radio Wave Sync ships an update every 2 months, TimeWave weekly. The most recent releases landed on September 29, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Radio Wave Sync | TimeWave |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1K ratings)](https://appshunter.io/ios/app/radio-wave-sync/id1484233572/reviews)** | [4.4 (18 ratings)](https://appshunter.io/ios/app/timewave-atomic-watch-sync/id6779167516/reviews) |
| Number of ratings | **1K** | 18 |
| Positive reviews | **61.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宁 金](https://appshunter.io/developer/1085058605) | [毅 何](https://appshunter.io/developer/1477138542) |

## What reviewers say

### Radio Wave Sync

[App page](https://appshunter.io/ios/app/radio-wave-sync/id1484233572)

This app helps synchronize radio-controlled watches by simulating time signal waves. It supports various international time signal standards and offers a 'Beast Mode' for faster synchronization. Simply place your watch near your device's speaker and start the process.

**Highlights:** Simulates international time wave signals, Supports China, USA, Japan, Germany, and UK signals, Unique 'Beast Mode' for faster sync, Manual wave receiving mode calibration, Adjustable volume for optimal signal

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Editon | $1.99 | one-time |

**What reviewers like**

- 🚀 Works as intended
- 👍 Easy to use
- 💡 Innovative solution
- 🔒 Reliable sync
- ⏱️ Fast sync time

**What reviewers complain about**

- 🐛 Inconsistent performance
- 💰 Paid version required
- 🔇 Audio issues
- 🤖 Ads in paid version
- 🔁 One-time use only

**Reported bugs**

- No sound output
- Sync failure after initial success
- Incompatibility with certain watch models

**Requested features**

- Time zone offset option
- Compatibility with newer devices
- Improved reliability and consistency


### TimeWave

[App page](https://appshunter.io/ios/app/timewave-atomic-watch-sync/id6779167516)

This app simulates radio-controlled clock signals to help your watch synchronize its time when terrestrial signals are unavailable. It offers guides for popular watch brands and checks environmental conditions before transmission.

**Highlights:** Radio-controlled clock signal simulation, Support for multiple international time signals, Environment pre-check and recommendations, Smart output tuning for various audio paths, Local time mode for overseas watches, Watch-specific synchronization guides, Live signal visualization and sync history

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $0.99 | one-time |
| Lifetime Membership | $3.99 | one-time |


## Frequently asked questions

### Is Radio Wave Sync free?

Radio Wave Sync is free to download, with in-app purchases available.

### Is TimeWave free?

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

### Which has better reviews, Radio Wave Sync or TimeWave?

Radio Wave Sync is rated higher. Radio Wave Sync averages 4.5 out of 5 from 1K ratings, while TimeWave averages 4.4 from 18 ratings.

### Do Radio Wave Sync or TimeWave have ads?

Radio Wave Sync shows ads; TimeWave does not.

### Which is updated more often, Radio Wave Sync or TimeWave?

Radio Wave Sync ships an update every 2 months, and TimeWave weekly. Most recently, Radio Wave Sync was updated on September 29, 2026 and TimeWave on September 21, 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.*