# AutoOBDII vs ABG Authenticator

The clearest difference is update cadence: ABG Authenticator at monthly against AutoOBDII's every 4 months. AutoOBDII's advantage is iOS requirement (13 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AutoOBDII ships an update every 4 months, ABG Authenticator monthly. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | AutoOBDII | ABG Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/autoobdii/id6503489503/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free | — |
| Size | 83 MB | 6 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Lonauto Technology Co., Ltd.](https://appshunter.io/developer/1744849406) | [Arsenal Business Growth](https://appshunter.io/developer/1529179329) |

## What reviewers say

### AutoOBDII

[App page](https://appshunter.io/ios/app/autoobdii/id6503489503)

This application connects to your vehicle via Bluetooth to perform diagnostics and offer driving assistance. It can read and clear fault codes, analyze performance, and track your journeys. Supports multiple languages and high-speed data transmission.

**Highlights:** Bluetooth vehicle communication, Fault code reading and clearing, Instrument panel monitoring, Performance testing, Travel analysis, High-speed data transmission, Low power consumption

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

**In-app purchases:** none


### ABG Authenticator

[App page](https://appshunter.io/ios/app/abg-authenticator/id6760732179)

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

**In-app purchases:** none


## Frequently asked questions

### Is AutoOBDII free?

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

### Is ABG Authenticator free?

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

### Do AutoOBDII or ABG Authenticator have ads?

Neither AutoOBDII nor ABG Authenticator shows ads.

### Which is updated more often, AutoOBDII or ABG Authenticator?

AutoOBDII ships an update every 4 months, and ABG Authenticator monthly. Most recently, AutoOBDII was updated on October 13, 2026 and ABG Authenticator on October 8, 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.*