# Speedometer vs Black Box Dyno

The clearest difference is rating: Black Box Dyno at 5.0 against Speedometer's 4.3. Black Box Dyno also leads on in-app purchases (none vs 7) and iOS requirement (14.0 vs 16.0). Speedometer's advantage is ratings volume (3K vs 3). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Speedometer sells 7 in-app purchases, starting at $3.99 per month. Black Box Dyno asks for nothing beyond the download.

Black Box Dyno holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Speedometer has 3K ratings behind it against 3, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 26, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Speedometer | Black Box Dyno |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3K ratings)](https://appshunter.io/ios/app/speedometer-gps-tracker/id1523551833/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/black-box-dyno/id6476816898/reviews)** |
| Number of ratings | **3K** | 3 |
| Positive reviews | 23.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 64 MB | 23 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [POKET APPS, OOO](https://appshunter.io/developer/1027729105) | [Lexi Wozniak](https://appshunter.io/developer/1727863700) |

## What reviewers say

### Speedometer

[App page](https://appshunter.io/ios/app/speedometer-gps-tracker/id1523551833)

This app provides an accurate digital speedometer, distance meter, and odometer. It tracks speed and distance for various activities like driving, cycling, and walking, offering real-time stats and trip history. It also includes HUD functionality and Apple Watch support.

**Highlights:** Accurate digital speedometer, Distance and odometer tracking, Supports various activities, HUD mode, Apple Watch compatibility, Trip statistics recording

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Sale | $3.99 | per month |
| Weekly Premium Sale | $5.99 | per 7 days |
| Weekly Premium Access | $7.99 | per 7 days |
| Monthly Premium | $9.99 | per month |
| Weekly Premium | $9.99 | per 7 days |
| Annual Premium | $49.99 | per year |
| Lifetime Premium | $89.99 | one-time |

**What reviewers like**

- 👍 Useful for checking car speedometer accuracy
- 🚀 Smooth speed tracking
- 💡 Helpful for classic cars without instruments

**What reviewers complain about**

- 🐛 Inaccurate speed readings at times
- 💰 Expensive subscription model
- 📢 Intrusive and disruptive ads
- 🔒 Unauthorized charges and difficult to cancel
- 🚫 Doesn't work as advertised or expected

**Reported bugs**

- App crashes when trying to display recorded tracks
- Speed readings freeze or stop working
- Compatibility issues with newer OS versions

**Requested features**

- Option to remove ads
- Ability to change speed units
- Higher refresh rate on Apple Watch
- Offline functionality


### 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

**In-app purchases:** none


## Frequently asked questions

### Is Speedometer free?

Speedometer 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 or Black Box Dyno?

Black Box Dyno is rated higher. Speedometer averages 4.3 out of 5 from 3K ratings, while Black Box Dyno averages 5.0 from 3 ratings.

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

Neither Speedometer nor Black Box Dyno shows ads.

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

Speedometer ships an update every 5 weeks, and Black Box Dyno every 5 weeks. Most recently, Speedometer was updated on September 26, 2026 and Black Box Dyno on September 6, 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.*