# OBDSTAR vs TopScan for Bimmers

The clearest difference is rating: TopScan for Bimmers at 5.0 against OBDSTAR's 1.5. TopScan for Bimmers also leads on ads (none vs shown) and update cadence (every 2 months vs every 6 months). OBDSTAR's advantage is ratings volume (4 vs 1). On price, 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.

TopScan for Bimmers holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

OBDSTAR ships an update every 6 months, TopScan for Bimmers every 2 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | OBDSTAR | TopScan for Bimmers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (4 ratings)](https://appshunter.io/ios/app/obdstar/id6447170127/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/topscan-for-bimmers/id6744716209/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Ad-supported | **Free** |
| Size | 122 MB | 676 MB |
| Requires iOS | 15.5 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [深圳市轩宇车鼎科技有限公司](https://appshunter.io/developer/1680461221) | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) |

## What reviewers say

### OBDSTAR

[App page](https://appshunter.io/ios/app/obdstar/id6447170127)

A handheld maintenance database for technicians, offering technical support, data queries, video viewing, and after-sales consultation. It provides a comprehensive database for automotive, motorcycle, and marine maintenance, aiming for efficient and professional service.

**Highlights:** Handheld maintenance database, Technical support, Data query, Video viewing, After-sales consultation, Comprehensive maintenance data

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

**In-app purchases:** none


### TopScan for Bimmers

[App page](https://appshunter.io/ios/app/topscan-for-bimmers/id6744716209)

Transform your phone into a powerful car diagnostic tool. Connect via Bluetooth to perform full system scans, access live data, and execute special maintenance functions. Generate detailed reports and identify issues with bi-directional controls.

**Highlights:** Full-system diagnosis, Bi-directional controls, AutoVIN vehicle identification, Special maintenance functions, Wireless Bluetooth 5.0 connection, Diagnostic report generation

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

**In-app purchases:** none


## Frequently asked questions

### Is OBDSTAR free?

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

### Is TopScan for Bimmers free?

TopScan for Bimmers is free to download, with no in-app purchases.

### Which has better reviews, OBDSTAR or TopScan for Bimmers?

TopScan for Bimmers is rated higher. OBDSTAR averages 1.5 out of 5 from 4 ratings, while TopScan for Bimmers averages 5.0 from 1 ratings.

### Do OBDSTAR or TopScan for Bimmers have ads?

OBDSTAR shows ads; TopScan for Bimmers does not.

### Which is updated more often, OBDSTAR or TopScan for Bimmers?

OBDSTAR ships an update every 6 months, and TopScan for Bimmers every 2 months. Most recently, OBDSTAR was updated on October 24, 2026 and TopScan for Bimmers on October 16, 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.*