# CarDiag vs ForgePilot Diagnostics

The clearest difference is ads: ForgePilot Diagnostics at none against CarDiag's shown. ForgePilot Diagnostics also leads on update cadence (fortnightly vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

CarDiag ships an update every 5 weeks, ForgePilot Diagnostics fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | CarDiag | ForgePilot Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/cardiag-car-diagnostic-obd2/id1525347987/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 14 MB | 38 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HI GROUP](https://appshunter.io/developer/1609861239) | [Crimson Forge Inc](https://appshunter.io/developer/1896609772) |

## What reviewers say

### CarDiag

[App page](https://appshunter.io/ios/app/cardiag-car-diagnostic-obd2/id1525347987)

Diagnose vehicle issues, turn off the check engine light, and manage maintenance digitally. This app provides insights into car problems, repair tips, and cost estimations, empowering users to handle car diagnostics independently.

**Highlights:** Automatic OBD2 diagnostics, Manual fault identification, Reset check engine light, Digital maintenance book, DIY repair tutorials, Repair cost estimation

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

**In-app purchases:** none


### ForgePilot Diagnostics

[App page](https://appshunter.io/ios/app/forgepilot-diagnostics/id6768842315)

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

**In-app purchases:** none


## Frequently asked questions

### Is CarDiag free?

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

### Is ForgePilot Diagnostics free?

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

### Do CarDiag or ForgePilot Diagnostics have ads?

CarDiag shows ads; ForgePilot Diagnostics does not.

### Which is updated more often, CarDiag or ForgePilot Diagnostics?

CarDiag ships an update every 5 weeks, and ForgePilot Diagnostics fortnightly. Most recently, CarDiag was updated on November 3, 2026 and ForgePilot Diagnostics on November 5, 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.*