# OBD Diagnostics vs Top Driver.

The clearest difference is ads: Top Driver. at none against OBD Diagnostics's shown. Top Driver. also leads on iOS requirement (17 vs 26.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. OBD Diagnostics sells 1 one-off in-app purchase and Top Driver. sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | OBD Diagnostics | Top Driver. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 23 MB | 16 MB |
| Requires iOS | 26.2 | **17** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [EJSmith](https://appshunter.io/developer/305393602) | [Yan Zhao](https://appshunter.io/developer/1887015520) |

## What reviewers say

### 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 |


### Top Driver.

[App page](https://appshunter.io/ios/app/top-driver/id6760957005)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Yearly Premium | $12.99 | per year |


## Frequently asked questions

### Is OBD Diagnostics free?

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

### Is Top Driver. free?

Top Driver. is free to download, with in-app purchases available.

### Do OBD Diagnostics or Top Driver. have ads?

OBD Diagnostics shows ads; Top Driver. 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.*