# OBD2 Cat vs Quant

The clearest difference is in-app purchases: OBD2 Cat at none against Quant's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Quant sells 1 one-off in-app purchase. OBD2 Cat asks for nothing beyond the download.

## The numbers

| Metric | OBD2 Cat | Quant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/obd2-cat-car-scanner/id6751106245/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 15 MB | 11 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Roman Tikhonychev](https://appshunter.io/developer/1833446011) | [Anatolii Atamanov](https://appshunter.io/developer/1848354522) |

## What reviewers say

### OBD2 Cat

[App page](https://appshunter.io/ios/app/obd2-cat-car-scanner/id6751106245)

This app reads diagnostic trouble codes and live vehicle data from compatible cars using a Bluetooth OBD2 adapter. It helps drivers understand dashboard warnings by checking engine codes, viewing sensor data, and retrieving vehicle identification information.

**Highlights:** Read diagnostic trouble codes (DTCs), Clear supported trouble codes, View live engine and sensor data, Check VIN, make, model, and year, Auto Scan for codes, View OBD protocol and connection status

**In-app purchases:** none


### Quant

[App page](https://appshunter.io/ios/app/quant-unit-converter/id6757080244)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $3.99 | one-time |


## Frequently asked questions

### Is OBD2 Cat free?

OBD2 Cat is free to download, with no in-app purchases.

### Is Quant free?

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

### Do OBD2 Cat or Quant have ads?

Neither OBD2 Cat nor Quant shows ads.

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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.*