# Speedometer GPS vs Black Box Dyno

The clearest difference is in-app purchases: Black Box Dyno at none against Speedometer GPS's 5. Black Box Dyno also leads on ads (none vs shown) and rating (5.0 vs 4.6). Speedometer GPS's advantage is ratings volume (8.9K vs 3) and update cadence (every 3 weeks vs every 2 months). 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. Black Box Dyno asks for nothing beyond the download.

Black Box Dyno holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Speedometer GPS has 8.9K ratings behind it against 3, so its average is the more settled of the two.

Speedometer GPS ships an update every 3 weeks, Black Box Dyno every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Speedometer GPS | Black Box Dyno |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (8.9K ratings)](https://appshunter.io/ios/app/speedometer-gps-speed-tracker/id6448165553/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/black-box-dyno/id6476816898/reviews)** |
| Number of ratings | **8.9K** | 3 |
| Positive reviews | 32.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#177** | — |
| Size | 82 MB | 23 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LightApps OU](https://appshunter.io/developer/1683318905) | [Lexi Wozniak](https://appshunter.io/developer/1727863700) |

## What reviewers say

### Speedometer GPS

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

**Currently charting:** #177 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


### Black Box Dyno

[App page](https://appshunter.io/ios/app/black-box-dyno/id6476816898)

This application analyzes minibike performance when used with compatible hardware. It displays real-time speed and engine RPM, and provides detailed post-run data on gearing, horsepower, torque, and top speed. It's ideal for tuning modifications or settling friendly performance debates.

**Highlights:** Speedometer, Tachometer, Gearing analysis, Horsepower tracking, Torque measurement, Top speed recording

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

**In-app purchases:** none


## Frequently asked questions

### Is Speedometer GPS free?

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

### Is Black Box Dyno free?

Black Box Dyno is free to download, with no in-app purchases.

### Which has better reviews, Speedometer GPS or Black Box Dyno?

Black Box Dyno is rated higher. Speedometer GPS averages 4.6 out of 5 from 8.9K ratings, while Black Box Dyno averages 5.0 from 3 ratings.

### Do Speedometer GPS or Black Box Dyno have ads?

Speedometer GPS shows ads; Black Box Dyno does not.

### Which is updated more often, Speedometer GPS or Black Box Dyno?

Speedometer GPS ships an update every 3 weeks, and Black Box Dyno every 2 months. Most recently, Speedometer GPS was updated on November 3, 2026 and Black Box Dyno on October 30, 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.*