# JB4 Mobile vs Track Attack! Lap timer & maps

The clearest difference is review sentiment: Track Attack! Lap timer & maps at 98% against JB4 Mobile's 52%. Track Attack! Lap timer & maps also leads on price (Free vs $27.99) and rating (4.9 vs 3.8). JB4 Mobile's advantage is in-app purchases (none vs 2) and chart position (#5 vs unranked). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Track Attack! Lap timer & maps is free to download; JB4 Mobile costs $27.99 up front. Track Attack! Lap timer & maps sells 2 in-app purchases, starting at $12.99 per month. JB4 Mobile asks for nothing beyond the download.

Track Attack! Lap timer & maps holds the better App Store score, 4.9 against 3.8. Both are backed by a comparable volume of ratings — 239 and 145 respectively. Written reviews point the same way: 52% of JB4 Mobile's written reviews are positive against 98% of Track Attack! Lap timer & maps's.

JB4 Mobile ships an update every 3 months, Track Attack! Lap timer & maps every 2 weeks. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | JB4 Mobile | Track Attack! Lap timer & maps |
| --- | --- | --- |
| Price | $27.99 | **Free** |
| Rating | [3.8 (239 ratings)](https://appshunter.io/ios/app/jb4-mobile/id794841332/reviews) | **[4.9 (145 ratings)](https://appshunter.io/ios/app/track-attack-lap-timer-and-maps/id1557802135/reviews)** |
| Number of ratings | **239** | 145 |
| Positive reviews | 52.4% of reviews | **98.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | **#5** | — |
| Size | 24 MB | 33 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [Velocity Labs LLC](https://appshunter.io/developer/1557802137) |

## What reviewers say

### JB4 Mobile

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

**Currently charting:** #5 Top Paid · Sports, #183 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


### Track Attack! Lap timer & maps

[App page](https://appshunter.io/ios/app/track-attack-lap-timer-and-maps/id1557802135)

Record your drives with video and GPS data. Plan routes with unlimited waypoints and navigate with live weather. For track use, it offers accurate lap timing and performance analysis. Supports dual-camera recording and customizable data overlays.

**Highlights:** Lap timer with delta bars, Route planning with unlimited waypoints, Dual-camera picture-in-picture video recording, Customizable video overlays, OBD, GPS, and heart rate sensor support, Shareable routes and data

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Track Attack Pro (1 month) | $12.99 | per month |
| Track Attack Pro (1 year) | $59.99 | per year |

**What reviewers like**

- 👍 Extremely user-friendly interface and easy setup
- 🎥 High-quality video recording with customizable overlays
- 📊 Comprehensive telemetry data and lap timing accuracy
- 🔗 Seamless OBD2 device connectivity via Bluetooth
- 💰 Free base version with optional paid features

**What reviewers complain about**

- 💳 Subscription required for full functionality
- 📱 Landscape-only mode limits accessibility
- 🎨 Limited customization for visual elements (logo, dial styles)
- 🔌 Occasional Bluetooth connectivity issues with some OBD devices
- 📺 Logo placement takes up significant screen space

**Reported bugs**

- OBDlink MX+ device not appearing in OBD device list
- Bluetooth connectivity issues with certain OBD readers
- CarPlay interference with latest iPhone updates

**Requested features**

- External video import capability
- Simulated braking data from G-force sensors
- Lap splits functionality
- Leaderboard feature for shared routes with friends
- Portrait/vertical mode support


## Frequently asked questions

### Is JB4 Mobile free?

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

### Is Track Attack! Lap timer & maps free?

Track Attack! Lap timer & maps is free to download, with in-app purchases available.

### Which has better reviews, JB4 Mobile or Track Attack! Lap timer & maps?

Track Attack! Lap timer & maps is rated higher. JB4 Mobile averages 3.8 out of 5 from 239 ratings, while Track Attack! Lap timer & maps averages 4.9 from 145 ratings.

### Do JB4 Mobile or Track Attack! Lap timer & maps have ads?

Neither JB4 Mobile nor Track Attack! Lap timer & maps shows ads.

### Which is updated more often, JB4 Mobile or Track Attack! Lap timer & maps?

JB4 Mobile ships an update every 3 months, and Track Attack! Lap timer & maps every 2 weeks. Most recently, JB4 Mobile was updated on October 11, 2026 and Track Attack! Lap timer & maps on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*