# PitLogic vs Wehrs Machine Data Log

The clearest difference is update cadence: Wehrs Machine Data Log at every 9 days against PitLogic's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PitLogic sells 10 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.

PitLogic ships an update every 4 weeks, Wehrs Machine Data Log every 9 days. The most recent releases landed on September 23, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PitLogic | Wehrs Machine Data Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/pitlogic/id1453816149/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Monetization | Subscription | — |
| Size | 49 MB | 40 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [CSI Shocks LLC](https://appshunter.io/developer/1453816148) | [Wehrs Machine and Racing Products](https://appshunter.io/developer/1659286733) |

## What reviewers say

### PitLogic

[App page](https://appshunter.io/ios/app/pitlogic/id1453816149)

Manage all your race car setup information in one digital notebook. Store shop and race day setups, notes, and shock data. Utilize gear charts and checklists to optimize performance and inventory.

**Highlights:** Digital race car notebook, Setup sheet templates, Shock information storage, Gear charts for RPM calculations, Racing checklists, Tire and parts inventory tracking, Stagger selection

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CSI Bronze Monthly Auto Renew | $9.99 | per month |
| CSI Silver Monthly Auto Renew | $9.99 | per month |
| CSI Gold Monthly Auto Renew | $9.99 | per month |
| PitLogic Complete Monthly | $9.99 | per month |
| PitLogic Complete Yearly | $99.99 | per year |
| Shock Download Qty:1 | $4.99 | one-time |
| Shock Download Qty:5 | $24.99 | one-time |
| Shock Download Qty:6 | $29.99 | one-time |
| Shock Download Qty:7 | $34.99 | one-time |
| Shock Download Qty:8 | $39.99 | one-time |


### 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 PitLogic free?

PitLogic 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 PitLogic or Wehrs Machine Data Log have ads?

Neither PitLogic nor Wehrs Machine Data Log shows ads.

### Which is updated more often, PitLogic or Wehrs Machine Data Log?

PitLogic ships an update every 4 weeks, and Wehrs Machine Data Log every 9 days. Most recently, PitLogic was updated on September 23, 2026 and Wehrs Machine Data Log on October 2, 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.*