# Dyno Chart vs UAF Control

The clearest difference is rating: UAF Control at 3.3 against Dyno Chart's 1.2. UAF Control also leads on in-app purchases (none vs 1). Dyno Chart's advantage is review sentiment (20% vs 0%) and iOS requirement (7.0 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Dyno Chart sells 1 one-off in-app purchase. UAF Control asks for nothing beyond the download.

UAF Control holds the better App Store score, 3.3 against 1.2. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews complicate that: 20% of Dyno Chart's written reviews are positive against 0% of UAF Control's, so the app with the better star average is not the one people write more warmly about.

Dyno Chart ships an update every 3 months, UAF Control every 2 months. The most recent releases landed on October 23, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Dyno Chart | UAF Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.2 (6 ratings)](https://appshunter.io/ios/app/dyno-chart-obd-ii-engine-performance-tool/id602676538/reviews) | **[3.3 (4 ratings)](https://appshunter.io/ios/app/uaf-control/id6751061049/reviews)** |
| Number of ratings | **6** | 4 |
| Positive reviews | **20.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 28 MB |
| Requires iOS | **7.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [K SOLUTION LLC](https://appshunter.io/developer/289670447) | [Corporation Unitronic Inc](https://appshunter.io/developer/1693388679) |

## What reviewers say

### Dyno Chart

[App page](https://appshunter.io/ios/app/dyno-chart-obd-ii-engine-performance-tool/id602676538)

This tool analyzes your vehicle's engine performance, displaying max power and torque against RPM. It connects via an OBD II adapter to gather sensor data and generate detailed charts. Ensure compatibility before unlocking full features.

**Highlights:** Max power and torque vs RPM charts, OBD II sensor data collection, Vehicle compatibility check, ELM Wi-Fi/Bluetooth LE adapter support, In-app chart function unlock

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dyno Chart Unlock | $4.99 | one-time |


### UAF Control

[App page](https://appshunter.io/ios/app/uaf-control/id6751061049)

Wirelessly adjust advanced features of your vehicle's ECU tuning software. Customize launch control, exhaust flap behavior, and exhaust overrun sound for a personalized driving experience. Requires specific hardware and tuned ECU software.

**Highlights:** Adjust launch control RPM and boost, Customize exhaust flap behavior by drive mode, Personalize exhaust overrun sound duration and intensity, Wireless on-the-fly adjustments, Requires custom Bluetooth module and tuned ECU software

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dyno Chart free?

Dyno Chart is free to download, with in-app purchases available.

### Is UAF Control free?

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

### Which has better reviews, Dyno Chart or UAF Control?

UAF Control is rated higher. Dyno Chart averages 1.2 out of 5 from 6 ratings, while UAF Control averages 3.3 from 4 ratings.

### Do Dyno Chart or UAF Control have ads?

Neither Dyno Chart nor UAF Control shows ads.

### Which is updated more often, Dyno Chart or UAF Control?

Dyno Chart ships an update every 3 months, and UAF Control every 2 months. Most recently, Dyno Chart was updated on October 23, 2026 and UAF Control on October 12, 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.*