# Dirt Slingin Tech vs Wehrs Machine Data Log

Dirt Slingin Tech and Wehrs Machine Data Log are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Dirt Slingin Tech sells 2 in-app purchases, starting at $9.99 per month and Wehrs Machine Data Log sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Dirt Slingin Tech ships an update every 5 days, Wehrs Machine Data Log every 9 days. The most recent releases landed on October 27, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Dirt Slingin Tech | Wehrs Machine Data Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (19 ratings)](https://appshunter.io/ios/app/dirt-slingin-tech/id1549261066/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 9 days |
| Monetization | Freemium | — |
| Size | 168 MB | 40 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [David Davis](https://appshunter.io/developer/1549261068) | [Wehrs Machine and Racing Products](https://appshunter.io/developer/1659286733) |

## What reviewers say

### Dirt Slingin Tech

[App page](https://appshunter.io/ios/app/dirt-slingin-tech/id1549261066)

This app helps dirt track racers optimize their car's performance with AI-driven setup guidance, detailed lap analysis, and digital setup sheets. Track parts, access rulebooks, and make informed decisions to race smarter.

**Highlights:** AI-Powered Crew Chief, Data Logger with RaceBox Integration, Lap Comparison and Time Delta Bar, Digital Setup Sheets, Parts Management Tracking, Gearing Calculator

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DST Pro | $9.99 | per month |
| DST Pro Annual | $99.99 | per year |


### Wehrs Machine Data Log

[App page](https://appshunter.io/ios/app/wehrs-machine-data-log/id6757166127)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wehrs Machine Data Log Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Dirt Slingin Tech free?

Dirt Slingin Tech is free to download, with in-app purchases available.

### Is Wehrs Machine Data Log free?

Wehrs Machine Data Log is free to download, with in-app purchases available.

### Do Dirt Slingin Tech or Wehrs Machine Data Log have ads?

Neither Dirt Slingin Tech nor Wehrs Machine Data Log shows ads.

### Which is updated more often, Dirt Slingin Tech or Wehrs Machine Data Log?

Dirt Slingin Tech ships an update every 5 days, and Wehrs Machine Data Log every 9 days. Most recently, Dirt Slingin Tech was updated on October 27, 2026 and Wehrs Machine Data Log 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.*