# Car Scanner OBD2 ELM vs BNotes

The clearest difference is in-app purchases: BNotes at none against Car Scanner OBD2 ELM's 4. BNotes also leads on ads (none vs shown). Car Scanner OBD2 ELM's advantage is iOS requirement (15.0 vs 18.5). On price and device support there is nothing between them.

Both are free to download. Car Scanner OBD2 ELM sells 4 in-app purchases, starting at $2.99 per 7 days. BNotes asks for nothing beyond the download.

## The numbers

| Metric | Car Scanner OBD2 ELM | BNotes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (39 ratings)](https://appshunter.io/ios/app/car-scanner-obd2-elm-obd-mary/id1456542840/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 6 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ihar Katkavets](https://appshunter.io/developer/1439778280) | [Mehmet ALTUNDIS](https://appshunter.io/developer/1823835686) |

## What reviewers say

### Car Scanner OBD2 ELM

[App page](https://appshunter.io/ios/app/car-scanner-obd2-elm-obd-mary/id1456542840)

This app functions as a universal vehicle scanner using the OBD2 standard. It connects to your car via WiFi or Bluetooth 4.0 LE adapters to diagnose and scan electronic control modules. Users need a compatible ELM327 adapter to utilize its diagnostic capabilities.

**Highlights:** Universal OBD2 scanning, Works with WiFi adapters, Works with Bluetooth 4.0 LE adapters, Diagnose electronic control modules (ECUs), Quick start guide for ELM327 adapters

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Monthly | $7.99 | per month |
| Premium Yearly | $29.99 | per year |
| Full Edition | $9.99 | one-time |


### BNotes

[App page](https://appshunter.io/ios/app/bnotes/id6748001076)

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

**In-app purchases:** none


## Frequently asked questions

### Is Car Scanner OBD2 ELM free?

Car Scanner OBD2 ELM is free to download, with in-app purchases available.

### Is BNotes free?

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

### Do Car Scanner OBD2 ELM or BNotes have ads?

Car Scanner OBD2 ELM shows ads; BNotes 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.*