# TopScan for Bimmers vs DFlasher

The clearest difference is update cadence: DFlasher at every 2 weeks against TopScan for Bimmers's every 2 months. DFlasher also leads on ratings volume (17 vs 1). TopScan for Bimmers's advantage is iOS requirement (11.0 vs 15.4). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for TopScan for Bimmers against 5.0 for DFlasher. That said, the two scores are not equally well evidenced: DFlasher has 17 ratings behind it against 1, so its average is the more settled of the two.

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

## The numbers

| Metric | TopScan for Bimmers | DFlasher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/topscan-for-bimmers/id6744716209/reviews) | [5.0 (17 ratings)](https://appshunter.io/ios/app/dflasher/id6746166662/reviews) |
| Number of ratings | 1 | **17** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 676 MB | 48 MB |
| Requires iOS | **11.0** | 15.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [2859910 ONTARIO INC](https://appshunter.io/developer/1815545535) |

## What reviewers say

### 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


### DFlasher

[App page](https://appshunter.io/ios/app/dflasher/id6746166662)

This app offers specialized mobile tools for tuning, diagnostics, and chip tuning of BMW M57 diesel engines. It provides professional-grade ECU flashing, fault code reading, and real-time engine data for performance optimization and maintenance.

**Highlights:** M57 ECU tuning and flashing, Read and clear DTCs, Real-time ECU information, Custom performance maps, Factory reset and stock recovery, Mobile-first design

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

**In-app purchases:** none


## Frequently asked questions

### Is TopScan for Bimmers free?

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

### Is DFlasher free?

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

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

TopScan for Bimmers and DFlasher are both rated 5.0 out of 5 on the App Store, from 1 and 17 ratings respectively.

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

Neither TopScan for Bimmers nor DFlasher shows ads.

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

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