# CLTagViewer vs GPS Race Timer

The clearest difference is ads: CLTagViewer at none against GPS Race Timer's shown. GPS Race Timer's advantage is update cadence (every 7 months vs every 19 months) and iOS requirement (12.2 vs 16.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. CLTagViewer sells 1 one-off in-app purchase and GPS Race Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CLTagViewer ships an update every 19 months, GPS Race Timer every 7 months. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | CLTagViewer | GPS Race Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2.7K ratings)](https://appshunter.io/ios/app/gps-race-timer/id1340496243/reviews)** |
| Number of ratings | — | **2.7K** |
| Positive reviews | — | 34.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 7 months** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 50 MB |
| Requires iOS | 16.6 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Control Plus Pty. Ltd](https://appshunter.io/developer/475170990) | [Thomas Hagenau](https://appshunter.io/developer/1340496242) |

## What reviewers say

### CLTagViewer

[App page](https://appshunter.io/ios/app/cltagviewer/id1192560320)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CLTagViewer V2 Purchase | $1.99 | one-time |


### GPS Race Timer

[App page](https://appshunter.io/ios/app/gps-race-timer/id1340496243)

Accurately measure vehicle acceleration times like 0-60 mph and 1/4 mile using your iPhone's GPS. Set up timers beforehand and let the app automatically start measurements when speed targets are met or motion is detected. Save, export, and transfer your performance data easily.

**Highlights:** Measure 0-60 mph, 60-120 mph, 1/4 mile, Automatic start detection, Save and export results, Preset and adjustable timers, No extra hardware required, Optional PRO version features

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO | $4.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Accurate speed tracking
- 💡 Customizable settings
- 📊 Saves run data

**What reviewers complain about**

- 🐛 Inconsistent 0-60 and quarter mile times
- 🐛 Fails to start/record runs
- 🐛 Inaccurate distance tracking
- 🐛 Compatibility issues with newer devices

**Reported bugs**

- Timer doesn't reset properly
- App crashes on startup
- Significant GPS/speed detection delays
- Recorded times do not match actual performance

**Requested features**

- Add 60ft and 1/8 mile times
- Automatic start/stop of timer
- Manual start option for timer
- Improved accuracy and consistency


## Frequently asked questions

### Is CLTagViewer free?

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

### Is GPS Race Timer free?

GPS Race Timer is free to download, with in-app purchases available.

### Do CLTagViewer or GPS Race Timer have ads?

GPS Race Timer shows ads; CLTagViewer does not.

### Which is updated more often, CLTagViewer or GPS Race Timer?

CLTagViewer ships an update every 19 months, and GPS Race Timer every 7 months. Most recently, CLTagViewer was updated on October 2, 2026 and GPS Race Timer on October 11, 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.*