# Check Engine Chat vs OBD Pilot

The clearest difference is update cadence: OBD Pilot at weekly against Check Engine Chat's monthly. OBD Pilot also leads on iOS requirement (17.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Check Engine Chat sells 1 one-off in-app purchase and OBD Pilot sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Check Engine Chat ships an update monthly, OBD Pilot weekly. Both last shipped on October 14, 2026.

## The numbers

| Metric | Check Engine Chat | OBD Pilot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 2.7 GB | 7 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yao Vah Saechao](https://appshunter.io/developer/1845021267) | [Shasank Mallela](https://appshunter.io/developer/6777431441) |

## What reviewers say

### Check Engine Chat

[App page](https://appshunter.io/ios/app/check-engine-chat/id6755978445)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Diagnostics Pro | $4.99 | one-time |


### OBD Pilot

[App page](https://appshunter.io/ios/app/obd-pilot-ai-car-scanner/id6777431439)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBD Pilot Pro Monthly | $4.99 | per month |
| OBD Pilot Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is Check Engine Chat free?

Check Engine Chat is free to download, with in-app purchases available.

### Is OBD Pilot free?

OBD Pilot is free to download, with in-app purchases available.

### Do Check Engine Chat or OBD Pilot have ads?

Neither Check Engine Chat nor OBD Pilot shows ads.

### Which is updated more often, Check Engine Chat or OBD Pilot?

Check Engine Chat ships an update monthly, and OBD Pilot weekly. Most recently, Check Engine Chat was updated on October 14, 2026 and OBD Pilot on October 14, 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.*