# Mini4WD vs CalmPrime

The clearest difference is update cadence: CalmPrime at daily against Mini4WD's every 2 months. Mini4WD's advantage is iOS requirement (13.0 vs 16). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mini4WD ships an update every 2 months, CalmPrime daily. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Mini4WD | CalmPrime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/mini4wd-laptimer/id1606492403/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 29 MB | 31 MB |
| Requires iOS | **13.0** | 16 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Katsuyoshi Konno](https://appshunter.io/developer/1606492405) | [HUNG-PIN YU](https://appshunter.io/developer/963095666) |

## What reviewers say

### Mini4WD

[App page](https://appshunter.io/ios/app/mini4wd-laptimer/id1606492403)

This app uses your device's camera to automatically time Mini 4WD races. It can track lap times, fastest times, and average times, with manual measurement options available. Customize settings like passing sounds, vibration, and course length for an optimized racing experience.

**Highlights:** Automatic lap timing with camera detection, Manual measurement option, Records fastest and average times, Customizable passing sound and vibration, Adjustable number of lanes and laps, Course length setting for speed calculation, Share race results via Twitter, memo, or email

**In-app purchases:** none


### CalmPrime

[App page](https://appshunter.io/ios/app/calmprime/id6744655217)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mini4WD free?

Mini4WD is free to download, with no in-app purchases.

### Is CalmPrime free?

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

### Do Mini4WD or CalmPrime have ads?

Both Mini4WD and CalmPrime show ads.

### Which is updated more often, Mini4WD or CalmPrime?

Mini4WD ships an update every 2 months, and CalmPrime daily. Most recently, Mini4WD was updated on November 3, 2026 and CalmPrime on October 25, 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.*