# iCorrTool vs TimeWave

The clearest difference is in-app purchases: iCorrTool at none against TimeWave's 2. iCorrTool also leads on iOS requirement (13 vs 15.0). TimeWave's advantage is update cadence (weekly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. TimeWave sells 2 one-off in-app purchases. iCorrTool asks for nothing beyond the download.

iCorrTool ships an update every 3 months, TimeWave weekly. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | iCorrTool | TimeWave |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (18 ratings)](https://appshunter.io/ios/app/timewave-atomic-watch-sync/id6779167516/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free |
| Size | 48 MB | 3 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Steffel KKS GmbH](https://appshunter.io/developer/786166712) | [毅 何](https://appshunter.io/developer/1477138542) |

## What reviewers say

### iCorrTool

[App page](https://appshunter.io/ios/app/icorrtool/id786166709)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 iCorrTool free?

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

### Is TimeWave free?

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

### Do iCorrTool or TimeWave have ads?

Neither iCorrTool nor TimeWave shows ads.

### Which is updated more often, iCorrTool or TimeWave?

iCorrTool ships an update every 3 months, and TimeWave weekly. Most recently, iCorrTool was updated on September 9, 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.*