# JB4 Mobile vs Dragline

The clearest difference is review sentiment: Dragline at 100% against JB4 Mobile's 52%. Dragline also leads on price (Free vs $27.99) and rating (5.0 vs 3.8). JB4 Mobile's advantage is ratings volume (239 vs 4) and chart position (#4 vs unranked). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

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

Dragline holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: JB4 Mobile has 239 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 52% of JB4 Mobile's written reviews are positive against 100% of Dragline's.

JB4 Mobile ships an update every 3 months, Dragline every 6 weeks. The most recent releases landed on October 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | JB4 Mobile | Dragline |
| --- | --- | --- |
| Price | $27.99 | **Free** |
| Rating | [3.8 (239 ratings)](https://appshunter.io/ios/app/jb4-mobile/id794841332/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/dragline/id6760178329/reviews)** |
| Number of ratings | **239** | 4 |
| Positive reviews | 52.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Best chart rank | **#4** | — |
| Size | 24 MB | 20 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [SAMARTH SHAH](https://appshunter.io/developer/1882984573) |

## What reviewers say

### JB4 Mobile

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

**Currently charting:** #4 Top Paid · Sports, #149 Top Paid (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


### Dragline

[App page](https://appshunter.io/ios/app/dragline/id6760178329)

This app automatically detects and times drag racing segments with high precision using GPS and accelerometer data. It allows users to track top speeds, compete on global leaderboards, and share their performance stats.

**Highlights:** Automatic drag racing segment timing, GPS-blended accuracy, Top speed tracking, Real-time roll race mode, Global leaderboards, Personal best tracking, Car build sharing

**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 Dragline free?

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

### Which has better reviews, JB4 Mobile or Dragline?

Dragline is rated higher. JB4 Mobile averages 3.8 out of 5 from 239 ratings, while Dragline averages 5.0 from 4 ratings.

### Do JB4 Mobile or Dragline have ads?

Neither JB4 Mobile nor Dragline shows ads.

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

JB4 Mobile ships an update every 3 months, and Dragline every 6 weeks. Most recently, JB4 Mobile was updated on October 19, 2026 and Dragline on September 24, 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.*