# Riidaa vs OBD Diagnostics

The clearest difference is price: OBD Diagnostics at Free against Riidaa's $0.99. Riidaa's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

OBD Diagnostics is free to download; Riidaa costs $0.99 up front. OBD Diagnostics sells 1 one-off in-app purchase. Riidaa asks for nothing beyond the download.

## The numbers

| Metric | Riidaa | OBD Diagnostics |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Monthly |
| Size | 16 MB | 23 MB |
| Requires iOS | **16.6** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Sturm](https://appshunter.io/developer/1735252059) | [EJSmith](https://appshunter.io/developer/305393602) |

## What reviewers say

### Riidaa

[App page](https://appshunter.io/ios/app/riidaa/id6743688839)

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

**In-app purchases:** none


### OBD Diagnostics

[App page](https://appshunter.io/ios/app/obd-diagnostics/id6759762253)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Riidaa free?

Riidaa costs $0.99, with no in-app purchases.

### Is OBD Diagnostics free?

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

### Do Riidaa or OBD Diagnostics have ads?

OBD Diagnostics shows ads; Riidaa does not.

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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.*