viZion by Quadzilla vs Comp 2.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
viZion by Quadzilla
This utility app connects with specific hardware modules to display real-time data. It allows users to monitor various parameters directly from their mobile device.
- Connects with Quadzilla viZion Gauge modules
- Displays real-time data
- Monitors various parameters
- Mobile device interface
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The viZion app is designed for use with Quadzilla viZion Gauge modules.
Comp 2.0
Enhance your 1998.5-2002 24V Cummins diesel engine's performance with on-the-fly adjustments. Fine-tune fueling, accelerator pedal response, and timing for significant power gains.
- On-the-fly adjustability via Bluetooth
- Fine-tune low boost fueling
- Adjust fuel delivery based on pedal position
- Optimize timing for power curves
- Gains of 40-150 HP and 150-380 TQ
- Supports aftermarket injectors and turbos
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The COMP box has dominated the 1998.5-2002 24V Cummins market for two decades and put Edge Products on the map in the early diesel performance era. With so many VP44 trucks still on the road, we’ve revamped our COMP to offer dominating performance gains with the industry’s latest technology. Our all-new Bluetooth wireless switch offers on-the-fly adjustability giving complete control over the driving experience. The mobile App offers fine tuning adjustment for low boost fueling, fuel delivery based on Accelerator Pedal Position, and timing to dial in your power curve for aftermarket injectors and larger turbo combinations. Breathing new life into your 5.9L Cummins, COMP offers gains from 40-150 HP, 150-380 TQ, even more RPM, and power available for heavily modified applications.
Screenshots
Verdict
The clearest difference is rating: Comp 2.0 at 3.8 against viZion by Quadzilla's 1.0. viZion by Quadzilla's advantage is update cadence (every 4 months vs every 11 months) and iOS requirement (5.1.1 vs 15.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Comp 2.0 holds the better App Store score, 3.8 against 1.0. Both are backed by a comparable volume of ratings — 3 and 6 respectively.
viZion by Quadzilla ships an update every 4 months, Comp 2.0 every 11 months. The most recent releases landed on October 11, 2026 and October 30, 2026 respectively.
| Parameter | viZion by Quadzilla | Comp 2.0 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (3 ratings) | 3.8 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 | 6 — better |
| Update frequency | Every 4 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 5.1.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 139 MB |
| Age rating | 4+ | 4+ |
| Developer | Quadzilla Power, LLC | Holley Performance Products |
Customer experience
viZion by Quadzilla
Comp 2.0
In-app purchases
viZion by Quadzilla
No in-app purchases
Comp 2.0
No in-app purchases
