# GPS Race Timer vs Dilution Calculator

The clearest difference is review sentiment: Dilution Calculator at 67% against GPS Race Timer's 34%. Dilution Calculator also leads on update cadence (every 6 weeks vs every 7 months) and rating (4.7 vs 4.5). GPS Race Timer's advantage is ratings volume (2.7K vs 158) and iOS requirement (12.2 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. GPS Race Timer sells 1 one-off in-app purchase and Dilution Calculator sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Dilution Calculator holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: GPS Race Timer has 2.7K ratings behind it against 158, so its average is the more settled of the two. Written reviews point the same way: 34% of GPS Race Timer's written reviews are positive against 67% of Dilution Calculator's.

GPS Race Timer ships an update every 7 months, Dilution Calculator every 6 weeks. Both last shipped on October 17, 2026.

## The numbers

| Metric | GPS Race Timer | Dilution Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2.7K ratings)](https://appshunter.io/ios/app/gps-race-timer/id1340496243/reviews) | **[4.7 (158 ratings)](https://appshunter.io/ios/app/dilution-calculator/id1511339044/reviews)** |
| Number of ratings | **2.7K** | 158 |
| Positive reviews | 34.4% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 50 MB | 10 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Hagenau](https://appshunter.io/developer/1340496242) | [Samuel Blackburn](https://appshunter.io/developer/1601418735) |

## What reviewers say

### 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


### Dilution Calculator

[App page](https://appshunter.io/ios/app/dilution-calculator/id1511339044)

This utility app simplifies the process of calculating dilution ratios for various applications. Users can input their desired ratio and bottle size to get instant, accurate results for the amounts of water and solution needed. It's ideal for tasks like car detailing, valeting, and paint mixing.

**Highlights:** Calculate dilution ratios, Enter ratio and bottle size, Instant accurate results, Supports litres and millilitres, Useful for car detailing, Useful for paint purposes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee | $1.99 | one-time |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is GPS Race Timer free?

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

### Is Dilution Calculator free?

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

### Which has better reviews, GPS Race Timer or Dilution Calculator?

Dilution Calculator is rated higher. GPS Race Timer averages 4.5 out of 5 from 2.7K ratings, while Dilution Calculator averages 4.7 from 158 ratings.

### Do GPS Race Timer or Dilution Calculator have ads?

Both GPS Race Timer and Dilution Calculator show ads.

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

GPS Race Timer ships an update every 7 months, and Dilution Calculator every 6 weeks. Most recently, GPS Race Timer was updated on October 17, 2026 and Dilution Calculator on October 17, 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.*