# AAA RSA Customer vs OBDify Car Diagnostic

The clearest difference is in-app purchases: AAA RSA Customer at none against OBDify Car Diagnostic's 6. AAA RSA Customer also leads on ads (none vs shown). OBDify Car Diagnostic's advantage is update cadence (every 3 weeks vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. OBDify Car Diagnostic sells 6 in-app purchases, starting at $4.99 per month. AAA RSA Customer asks for nothing beyond the download.

AAA RSA Customer ships an update every 3 months, OBDify Car Diagnostic every 3 weeks. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AAA RSA Customer | OBDify Car Diagnostic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 57 MB | 64 MB |
| Requires iOS | **14** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AAA Warranty](https://appshunter.io/developer/1686079288) | [OBDify](https://appshunter.io/developer/1689565023) |

## What reviewers say

### AAA RSA Customer

[App page](https://appshunter.io/ios/app/aaa-rsa-customer/id6739774825)

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

**In-app purchases:** none


### OBDify Car Diagnostic

[App page](https://appshunter.io/ios/app/obdify-car-diagnostic/id6754986520)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBDify Premium (Monthly) | $4.99 | per month |
| OBDify Premium (Annual) | $47.99 | per year |
| Unlock 1 VIN | $19.99 | one-time |
| Unlock 3 VINs | $49.99 | one-time |
| Unlock 10 VINs | $119.99 | one-time |
| Unlock 25 VINs | $199.99 | one-time |


## Frequently asked questions

### Is AAA RSA Customer free?

AAA RSA Customer is free to download, with no in-app purchases.

### Is OBDify Car Diagnostic free?

OBDify Car Diagnostic is free to download, with in-app purchases available.

### Do AAA RSA Customer or OBDify Car Diagnostic have ads?

OBDify Car Diagnostic shows ads; AAA RSA Customer does not.

### Which is updated more often, AAA RSA Customer or OBDify Car Diagnostic?

AAA RSA Customer ships an update every 3 months, and OBDify Car Diagnostic every 3 weeks. Most recently, AAA RSA Customer was updated on October 4, 2026 and OBDify Car Diagnostic on October 24, 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.*