# BACDoor™ vs Speedometer GPS

The clearest difference is rating: Speedometer GPS at 4.6 against BACDoor™'s 3.5. Speedometer GPS also leads on ratings volume (8.6K vs 6) and update cadence (every 3 weeks vs every 4 months). BACDoor™'s advantage is in-app purchases (none vs 5) and ads (none vs shown). On price there is nothing between them.

Both are free to download. Speedometer GPS sells 5 in-app purchases, starting at $2.99 per 7 days. BACDoor™ asks for nothing beyond the download.

Speedometer GPS holds the better App Store score, 4.6 against 3.5. That said, the two scores are not equally well evidenced: Speedometer GPS has 8.6K ratings behind it against 6, so its average is the more settled of the two.

BACDoor™ ships an update every 4 months, Speedometer GPS every 3 weeks. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | BACDoor™ | Speedometer GPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (6 ratings)](https://appshunter.io/ios/app/bacdoor/id1229140415/reviews) | **[4.6 (8.6K ratings)](https://appshunter.io/ios/app/speedometer-gps-speed-tracker/id6448165553/reviews)** |
| Number of ratings | 6 | **8.6K** |
| Positive reviews | — | 32.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#183** |
| Size | 92 MB | 82 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Accelerated Systems Inc.](https://appshunter.io/developer/1229140414) | [LightApps OU](https://appshunter.io/developer/1683318905) |

## What reviewers say

### BACDoor™

[App page](https://appshunter.io/ios/app/bacdoor/id1229140415)

This utility app allows ASI customers with a support account to fine-tune Bluetooth controllers directly from their mobile device. It offers features like parameter adjustment, file management, firmware updates, and data logging without needing a PC connection.

**Highlights:** Poll and adjust controller parameters, Upload and save parameter files, Bootload firmware to controllers, Datalog parameters, Customizable app layouts

**Features:** macOS Compatibility

**In-app purchases:** none


### Speedometer GPS

[App page](https://appshunter.io/ios/app/speedometer-gps-speed-tracker/id6448165553)

**Currently charting:** #183 Top Grossing · Utilities (US App Store)

This app provides real-time speed tracking using GPS technology. It offers customizable displays, speed limit alerts, and trip history logs for various vehicles. Enhance your driving or cycling experience with accurate speed monitoring.

**Highlights:** Accurate GPS speed tracking, Customizable digital and HUD display, Speed limit alerts, Trip history logs, Multi-vehicle compatibility, HUD mode for windshield reflection

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Speedometer Pro | $2.99 | per 7 days |
| Speedometer Pro | $4.99 | per 7 days |
| Speedometer Pro | $7.99 | per 7 days |
| Speedometer Pro | $14.99 | per month |
| Speedometer Pro | $29.99 | per year |

**What reviewers like**

- 🚀 Accurate speedometer
- ⏱️ Useful trip statistics
- 📍 Tracks location and speed
- 👍 User-friendly interface

**What reviewers complain about**

- 💰 Expensive subscription model
- 🔒 Difficult to cancel subscription
- 🐛 Inconsistent speed and distance tracking
- 🤖 Intrusive prompts for premium features

**Reported bugs**

- Speed displayed incorrectly, especially on trains
- Distance tracking issues, sometimes loses recorded data

**Requested features**

- Option to purchase app outright
- Landscape mode support
- Customizable speed/distance units
- Improved free version with more features


## Frequently asked questions

### Is BACDoor™ free?

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

### Is Speedometer GPS free?

Speedometer GPS is free to download, with in-app purchases available.

### Which has better reviews, BACDoor™ or Speedometer GPS?

Speedometer GPS is rated higher. BACDoor™ averages 3.5 out of 5 from 6 ratings, while Speedometer GPS averages 4.6 from 8.6K ratings.

### Do BACDoor™ or Speedometer GPS have ads?

Speedometer GPS shows ads; BACDoor™ does not.

### Which is updated more often, BACDoor™ or Speedometer GPS?

BACDoor™ ships an update every 4 months, and Speedometer GPS every 3 weeks. Most recently, BACDoor™ was updated on October 6, 2026 and Speedometer GPS on October 19, 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.*