JB4 Mobile vs DiverLog+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JB4 Mobile
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.
- Live gauge monitoring
- Data logging and graphing
- User adjustable settings
- WMI settings modification
- On-the-fly map switching
- Code reading and deletion
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The brand new JB4 Mobile application is finally ready for public release and has lots of great new features including: *Gauge theme customizations *Built-in raw CSV data viewer *Revamped User Adj./WMI data editors *New modern UI completely rewritten from the ground up *More seamless integration with our backend servers JB4 Connect Kit Users: 1) Install the Connect Kit per the installation guide for your vehicle 2) Create your account/sign in with this app 3) Ensure JB4 Mobile has all requested permissions 4) Tap the Connect button in JB4 Mobile About The App: JB4 Mobile is a mobile data logger and display for use with the JB4 tuner from Burger Motorsports. JB4 Mobile allows you to monitor and log multiple parameters from your JB4 equipped car. Parameters such as boost, rpm, fuel trims, air/fuel ratios, ignition advance and much more are available. Current Features: Live gauges Data logging Data graphing Log export via email Code reading/deletion Modify User Adj. (boost, fuel, etc.) settings Modify WMI settings Switch maps on the fly Auto WOT logging JB4 Firmware Updating JB4 ® is a registered trademark of Burger Motorsports Inc ® and is used with written permission.
DiverLog+
This app allows divers to digitally log and manage all aspects of their underwater adventures. Track dive details, gear, buddies, and locations. Sync data with dive computers and cloud backups, and share your experiences.
- Manage dive details
- Search dives by location/buddy
- Manage dive spots and gear
- Track personal medical/certification info
- Add photos and videos
- Sync with desktop/cloud
- Download/upload dive computer data
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The DiverLog+ for mobile app is the premier full-featured dive log application. DiverLog+ is the Official App for Bluetooth Smart dive computers made by the following manufacturers: AQUALUNG, APEKS, HUISH/OCEANIC, SHERWOOD. FEATURES - View, edit, and manage your DC dive detail data - Search dives based on location, dive type, buddies, many more - View, edit and manage your favorite dive spots and locations - View, edit and manage your dive gear, buddies - Keep track of personal data including medical and certification information - Upload slates, MY INFO, GPS Location to Dive Computer (DSX only) - Add photos, Youtube video links to dives, and remember those fun times - Social sharing features - Synchronize with DiverLog application for desktop, laptop, and mobiles devices - Download dive data from Dive Computer, upload your desired settings to Dive Computer, update firmware to Dive Computer using Bluetooth Smart (currently supports BEACON, CALM-ACT, DSX, i200C, i300C, i330R, i330R Console, i470TC, i550C, i750TC, i770R, GEO 4.0, GEO AIR, PROPLUS 4.0, PROPLUS X, SAGE, VEO 4.0, WISDOM 4.0) - Much more ... SUMMARY DiverLog+ allows you to view, edit, and manage your dives easily. The dive detail section gives you all the information you need, including dive data, location and dive site information, tank and buddy information, gear bag, and more. Add your diving buddies and keep your personal certification and medical information on hand at all times. View your dive profile in full screen view. Add and manage your gear with easy entry forms. DiverLog+ offers you simple search methods to find your dives .. search by location, dive site, and even which computer you used! ...See all your dives on the world map, a unique feature we call your dive activity map! You can even keep track of your personal information, including medical and certification info. You can now sync your dives with the DiveCloud online dive data backup system so you never lose your dives, and always have them available, wherever you are! Connect with our developers by posting in the forum, or contact by email at the support website: https://ediverlog.com
Screenshots
Verdict
The clearest difference is price: DiverLog+ at Free against JB4 Mobile's $27.99. DiverLog+ also leads on update cadence (every 5 weeks vs every 3 months) and iOS requirement (9.0 vs 15.1). JB4 Mobile's advantage is rating (3.8 vs 2.5) and review sentiment (52% vs 19%). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
DiverLog+ 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 holds the better App Store score, 3.8 against 2.5. Both are backed by a comparable volume of ratings — 239 and 111 respectively. Written reviews point the same way: 52% of JB4 Mobile's written reviews are positive against 19% of DiverLog+'s.
JB4 Mobile ships an update every 3 months, DiverLog+ every 5 weeks. The most recent releases landed on September 23, 2026 and September 4, 2026 respectively.
| Parameter | JB4 Mobile | DiverLog+ |
|---|---|---|
| Price | $27.99 | Free — better |
| Rating | 3.8 (239 ratings) — better | 2.5 (111 ratings) |
| Positive reviews | 52.4% of reviews — better | 19.1% of reviews |
| Number of ratings | 239 — better | 111 |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Freemium |
| Best chart rank | #7 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 9.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 89 MB |
| Age rating | 4+ | 4+ |
| Developer | Dmac Mobile Developments, LLC | Head Watersports S.p.A. |
Customer experience
JB4 Mobile
DiverLog+
User reviews
JB4 Mobile
From 239 App Store ratingsWhat we love
- 🚀 Great app and a must have with the JB4
- 🔒 Robust security features
- 👍 Awesome data logging
- 👍 Incredible Support
- 👍 Works as expected
Room to improve
- 🐛 Doesn't work properly, screen upside down and backwards
- 🐛 Stopped working after update
- 🐛 Bluetooth connection issues
- 🐛 Gauges freezing
- 🐛 Screen turns off
DiverLog+
From 111 App Store ratingsWhat we love
- 🚀 Easy Bluetooth sync with dive computers
- 📸 Photo and video storage integration
- 📝 Comprehensive dive logging features
- ⚙️ Convenient app-based computer settings
- 🤝 Buddy and gear management
Room to improve
- 🐛 Frequent app crashes
- 💾 Data loss on phone replacement
- 🔗 No cloud backup by default
- ❌ No cross-device synchronization
- 🔐 Unreliable account login system
Bugs and requests
JB4 Mobile
Reported bugs
5 issues- App crashes
- Can't connect to server
- Mirrored/inverted display
- Compatibility issues with new iOS versions
- Trouble logging in
Requested features
5 requests- Add CarPlay support
- Allow customizing map names
- Add more gauge styling options
- Improve UI and layout
- Integrate with Apple Carplay
DiverLog+
Reported bugs
28 issues- App crashes when downloading/syncing dives
- Crashes during firmware updates
- Crashes when accessing settings or verification
- All dive data lost after app reinstall
- Data loss when switching phones
Show 23 moreShow fewer
- Bluetooth connection failures
- Firmware update stuck at 99%
- Incorrect elapsed dive time calculations
- Download timeouts around 50%
- GPS coordinates disappear after naming dive site
- Tank pressure not auto-populated from wireless transmitter
- Dive computer not recognized after updates
- Sync failures with dive cloud
- Cannot add photos or videos
- Incomplete label text in log lists
- Time synchronization not working
- Settings revert to English/Anglo-Saxon format
- Cannot update GPS locations for dive sites
- Dive data shows incorrect tanks and mixes
- Map displays wrong locations (e.g., Antarctica instead of Galapagos)
- Keyboard input issues on iPad
- App crashes on specific iPhone models
- Network errors on login
- Cannot edit personal information (blood type, insurance)
- Graph display showing blank/white after updates
- Account creation confusion
- Password reset not working
- Dives disappear after login
Requested features
20 requests- Cloud backup and sync across devices
- iPad-optimized version with landscape mode
- Cumulative dive time and average RMV statistics
- Average depth per dive display
- Merge/combine multiple dives into one
Show 15 moreShow fewer
- Export to Excel or other formats
- Ability to re-download deleted dives
- Edit and delete dive locations easily
- Back buttons in data entry forms
- Photo thumbnails in dive log list
- Safety stop indication during dives
- Heart rate tracking integration
- Ability to split dives recorded as one
- Search by depth ranges (greater than/less than)
- Multi-location search capability
- Separate logs for scuba vs freediving
- Battery indicator for dive computer
- Customizable gear bag items
- Manual GPS coordinate input and editing
- Offline mode capability
In-app purchases
JB4 Mobile
No in-app purchases
DiverLog+
No in-app purchases









