# AIOBD13 vs GWSMARTBT

The clearest difference is rating: GWSMARTBT at 3.3 against AIOBD13's 1.0. GWSMARTBT also leads on ratings volume (67 vs 2). AIOBD13's advantage is monetization model (free vs paid) and iOS requirement (7.0 vs 15.6). On price, review sentiment, update cadence and ads there is nothing between them.

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

GWSMARTBT holds the better App Store score, 3.3 against 1.0. That said, the two scores are not equally well evidenced: GWSMARTBT has 67 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of AIOBD13's written reviews are positive against 46% of GWSMARTBT's, so the app with the better star average is not the one people write more warmly about.

AIOBD13 ships an update every 2 months, GWSMARTBT every 5 weeks. The most recent releases landed on September 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | AIOBD13 | GWSMARTBT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/aiobd13/id958457297/reviews) | **[3.3 (67 ratings)](https://appshunter.io/ios/app/gwsmartbt/id6484589124/reviews)** |
| Number of ratings | 2 | **67** |
| Positive reviews | **50.0% of reviews** | 46.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | **Free** | Paid |
| Size | 52 MB | 1.3 GB |
| Requires iOS | **7.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [翔宇 金](https://appshunter.io/developer/528881861) | [Apex Tool Group](https://appshunter.io/developer/1401209994) |

## What reviewers say

### AIOBD13

[App page](https://appshunter.io/ios/app/aiobd13/id958457297)

Connects to your vehicle's diagnostic system via Bluetooth to read and log engine data on iOS devices. Monitor your car's performance and driving habits to improve MPG and maintain optimal operation.

**Highlights:** Bluetooth diagnostic system connection, Reads and logs engine data, Monitors vehicle conditions, Improves MPG tracking, Tracks driving habits, Supports OBDII/EOBD compliant vehicles since 1996

**Features:** macOS Compatibility

**In-app purchases:** none


### GWSMARTBT

[App page](https://appshunter.io/ios/app/gwsmartbt/id6484589124)

This diagnostic tool offers advanced vehicle system scanning and bidirectional control for automotive technicians. It provides 23 professional reset functions and live data mapping, eliminating the need for expensive alternatives. Enjoy comprehensive coverage, a 2-year warranty, and free lifetime software updates.

**Highlights:** Full system diagnostics, Bidirectional programming, 23 pro reset functions, Live data mapping, OE level diagnostics, Free lifetime software updates

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

**In-app purchases:** none


## Frequently asked questions

### Is AIOBD13 free?

AIOBD13 is free to download, with no in-app purchases.

### Is GWSMARTBT free?

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

### Which has better reviews, AIOBD13 or GWSMARTBT?

GWSMARTBT is rated higher. AIOBD13 averages 1.0 out of 5 from 2 ratings, while GWSMARTBT averages 3.3 from 67 ratings.

### Do AIOBD13 or GWSMARTBT have ads?

Neither AIOBD13 nor GWSMARTBT shows ads.

### Which is updated more often, AIOBD13 or GWSMARTBT?

AIOBD13 ships an update every 2 months, and GWSMARTBT every 5 weeks. Most recently, AIOBD13 was updated on September 25, 2026 and GWSMARTBT on October 27, 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.*