DryFire Trigger Unit vs OnTrack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DryFire Trigger Unit
This application allows users to program a universal gun assembly for various firing modes and sensitivity settings. It connects the gun assembly to a specific system, enabling laser firing based on vibration detection.
- Program universal gun assembly
- Select firing modes (press, release, universal)
- Adjust sensitivity in universal mode
- Laser firing based on vibration
- Link gun assembly to DryFire system
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The DryFire Universal gun assembly is here. This is the iOS version of the app to program it. Select the firing mode - fire on press, fire on release or universal Select the sensitivity when operating in universal mode Universal mode fires the laser based on detecting vibrations consistent with the trigger being pressed. Use this app to link the gun assembly to the DryFire system.
OnTrack
This app provides real-time car performance data via OBD2 connection, with CarPlay integration for easy monitoring on your dashboard. Set custom alerts for critical temperature values to optimize your vehicle's performance on the track.
- Real-time OBD2 data monitoring
- CarPlay integration
- Customizable temperature alerts
- Engine RPM, coolant temp, oil pressure display
- User-friendly interface
- Bluetooth OBD adapter required
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Discover our revolutionary new CarPlay-enabled app that takes your racing experience to the next level. Seamlessly connecting to your car's OBD interface, our app provides real-time access to critical data essential for a successful race. With our app, you can effortlessly monitor your car's performance on the racetrack. Keep tabs on engine RPM, coolant temperature, oil pressure, and more, all displayed in a user-friendly format that allows you to stay focused on the road ahead. But that's not all – we've recently added an exciting feature! You can now set custom alerts for temperature values. Whether it's coolant temperature, oil temperature, or any other crucial parameter, you have the power to define limits and receive instant notifications when those values go above your specified thresholds. This level of control ensures you stay informed and can take immediate action to optimise your vehicle's performance. What's even better? Our app seamlessly integrates with CarPlay, offering an even more convenient way to keep an eye on your car's performance. Display all the essential information from our app directly on your car's dashboard screen. This means you can maintain your focus on the road and have real-time performance data at your fingertips. Why wait? Download our app today and elevate your racing game. With our app, you'll have everything you need to dominate the track, set alerts for temperature values, and stay ahead of the competition. ** Requires a Bluetooth 4.0 OBD adapter to function. ** EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: OnTrack at 3.3 against DryFire Trigger Unit's 2.0. OnTrack also leads on update cadence (every 4 weeks vs every 3 months) and ratings volume (57 vs 2). DryFire Trigger Unit's advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 18.6). On price, ads 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
Both are free to download. OnTrack sells 2 in-app purchases, starting at $3.99 per month. DryFire Trigger Unit asks for nothing beyond the download.
OnTrack holds the better App Store score, 3.3 against 2.0. That said, the two scores are not equally well evidenced: OnTrack has 57 ratings behind it against 2, so its average is the more settled of the two.
DryFire Trigger Unit ships an update every 3 months, OnTrack every 4 weeks. The most recent releases landed on November 3, 2026 and November 13, 2026 respectively.
| Parameter | DryFire Trigger Unit | OnTrack |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (2 ratings) | 3.3 (57 ratings) — better |
| Positive reviews | — | 37.0% of reviews |
| Number of ratings | 2 | 57 — better |
| Update frequency | Every 3 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 8.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 16 MB | 22 MB |
| Age rating | 12+ | 4+ |
| Developer | Wordcraft International Limited | OnTrack Apps Limited |
Customer experience
DryFire Trigger Unit
OnTrack
Bugs and requests
DryFire Trigger Unit
Not enough reviews yet to summarise bugs or requests.
OnTrack
Reported bugs
19 issues- Lost connections with Vgate Pro
- App crashes as soon as it connects to OBD2 reader since iOS 18
- Öltemperatur (Oil temperature) not read for VW/Audi vehicles
- Boost bar maxes at 1.5 bar / 22.3psi
- Not connecting to OBDLink CX
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- Not connecting to OBDLink CX or BlueDriver
- App crashes when trying to connect Bluetooth device
- App crashes when sorting fields in dashboard
- Certain values cannot be retrieved from OBD interface
- No readings, inaccurate oil and coolant temperatures
- App not appearing in CarPlay customization menu
- Connection problems with OBDLink MX+
- No data displayed for 2015 VW T5.1 after purchasing premium
- App barely works, tried 3 OBD modules, worked with one once
- Check engine light codes are incorrect (P1700 vs P0117)
- Will not connect with OBDLink MX+ or Vgate Icar Pro
- Does not work with Bluetooth 5.0
- WiFi Version needed
- Can’t tell if it works, unpaid version allows only two sensors
Requested features
11 requests- Add gauges instead of numbers for CarPlay
- Add more PIDs (e.g., exhaust gas temperature, transmission temp)
- Vehicle selector
- Support landscape mode
- Add custom PIDs for vehicle-specific measurements
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- Add light mode
- Add smaller format windows for CarPlay
- Add EV specific measurements (battery temp, state of charge, etc.)
- Add transmission temperature display
- Add oil temperature display for VW/Audi
- Allow single purchase for limited values
In-app purchases
DryFire Trigger Unit
No in-app purchases
OnTrack
- Monthly$3.991 Month
- Yearly - Best Value7 Days trial$29.991 Year
Questions
Is DryFire Trigger Unit free?
Is OnTrack free?
Which has better reviews, DryFire Trigger Unit or OnTrack?
Do DryFire Trigger Unit or OnTrack have ads?
Which is updated more often, DryFire Trigger Unit or OnTrack?
Other comparisons
