# Radio Wave Sync vs Timegrapher

The clearest difference is rating: Radio Wave Sync at 4.5 against Timegrapher's 2.8. Radio Wave Sync also leads on update cadence (every 2 months vs every 8 months) and ratings volume (1.1K vs 46). Timegrapher's advantage is ads (none vs shown). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

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

Radio Wave Sync holds the better App Store score, 4.5 against 2.8. That said, the two scores are not equally well evidenced: Radio Wave Sync has 1.1K ratings behind it against 46, so its average is the more settled of the two. Written reviews point the same way: 61% of Radio Wave Sync's written reviews are positive against 55% of Timegrapher's.

Radio Wave Sync ships an update every 2 months, Timegrapher every 8 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Radio Wave Sync | Timegrapher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.1K ratings)](https://appshunter.io/ios/app/radio-wave-sync/id1484233572/reviews)** | [2.8 (46 ratings)](https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771/reviews) |
| Number of ratings | **1.1K** | 46 |
| Positive reviews | **61.5% of reviews** | 55.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 9 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [宁 金](https://appshunter.io/developer/1085058605) | [Attila Lelko](https://appshunter.io/developer/1693385247) |

## 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


### Timegrapher

[App page](https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771)

This application uses your device's microphone to measure the accuracy of mechanical watches. It detects ticking sounds to analyze beat rate, beat error, and amplitude, displaying results in real-time and over time.

**Highlights:** Detect BPH, Measure Beat rate, Measure Beat error, Measure Amplitude, Set Lift angle, Real-time sound display, Accuracy over time display

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock full | $5.99 | one-time |

**What reviewers like**

- 👍 Works great for some
- 🎯 Accurate for some users
- 💰 Good value for money (paid features)
- 💡 Useful for watch regulation
- 🎧 Works better with external mic

**What reviewers complain about**

- 😞 Doesn't work for many
- 💸 Requires payment for full functionality
- ❓ Scam accusations
- 📱 Inconsistent readings
- 🚫 No readings at all

**Reported bugs**

- Does not detect ticking
- Does not work at all
- Requires payment to function
- Inaccurate readings
- Unskippable pop-ups

**Requested features**

- Add dark mode
- Keep screen on during use
- Ability to save data per watch
- Improve visual design
- Lower price for Pro version


## Frequently asked questions

### Is Radio Wave Sync free?

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

### Is Timegrapher free?

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

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

Radio Wave Sync is rated higher. Radio Wave Sync averages 4.5 out of 5 from 1.1K ratings, while Timegrapher averages 2.8 from 46 ratings.

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

Radio Wave Sync shows ads; Timegrapher does not.

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

Radio Wave Sync ships an update every 2 months, and Timegrapher every 8 months. Most recently, Radio Wave Sync was updated on October 26, 2026 and Timegrapher on October 27, 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.*