# JB4 Mobile vs Dartistri

The clearest difference is price: Dartistri at Free against JB4 Mobile's $27.99. JB4 Mobile's advantage is chart position (#3 vs unranked) and device support (3 vs 1). On update cadence, ads and in-app purchases there is nothing between them.

Dartistri is free to download; JB4 Mobile costs $27.99 up front. Neither carries in-app purchases, so what you see is what you pay.

JB4 Mobile ships an update every 3 months, Dartistri every 2 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | JB4 Mobile | Dartistri |
| --- | --- | --- |
| Price | $27.99 | **Free** |
| Rating | **[3.8 (239 ratings)](https://appshunter.io/ios/app/jb4-mobile/id794841332/reviews)** | — |
| Number of ratings | **239** | — |
| Positive reviews | 52.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Best chart rank | **#3** | — |
| Size | 24 MB | 30 MB |
| Requires iOS | **15.1** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [Brian Huser](https://appshunter.io/developer/1880732793) |

## What reviewers say

### JB4 Mobile

[App page](https://appshunter.io/ios/app/jb4-mobile/id794841332)

**Currently charting:** #3 Top Paid · Sports, #198 Top Grossing · Sports (US App Store)

This app acts as a mobile data logger and display for vehicles equipped with a JB4 tuner. It allows users to monitor and log various engine parameters, view data in real-time, and adjust settings for performance tuning.

**Highlights:** Live gauge monitoring, Data logging and graphing, User adjustable settings, WMI settings modification, On-the-fly map switching, Code reading and deletion

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app and a must have with the JB4
- 🔒 Robust security features
- 👍 Awesome data logging
- 👍 Incredible Support
- 👍 Works as expected

**What reviewers complain about**

- 🐛 Doesn't work properly, screen upside down and backwards
- 🐛 Stopped working after update
- 🐛 Bluetooth connection issues
- 🐛 Gauges freezing
- 🐛 Screen turns off

**Reported bugs**

- App crashes
- Can't connect to server
- Mirrored/inverted display
- Compatibility issues with new iOS versions
- Trouble logging in

**Requested features**

- Add CarPlay support
- Allow customizing map names
- Add more gauge styling options
- Improve UI and layout
- Integrate with Apple Carplay


### Dartistri

[App page](https://appshunter.io/ios/app/dartistri/id6759799782)

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

**In-app purchases:** none


## Frequently asked questions

### Is JB4 Mobile free?

JB4 Mobile costs $27.99, with no in-app purchases.

### Is Dartistri free?

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

### Do JB4 Mobile or Dartistri have ads?

Neither JB4 Mobile nor Dartistri shows ads.

### Which is updated more often, JB4 Mobile or Dartistri?

JB4 Mobile ships an update every 3 months, and Dartistri every 2 months. Most recently, JB4 Mobile was updated on November 1, 2026 and Dartistri on October 25, 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.*