Comparison

Comp 2.0 vs Arbornotes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Arbornotes

Features
Read full description

Arbor, the latin word for tree, was the primary inspiration for this app. A way to organize any amount of files in an order customized to the user.  Every feature in this app I have implemented with hours of thought and polishing. I made this app because I felt that nothing already made offered what I and other people needed. This app isn't just designed for students, it is designed for everyone.  Its designed with a sleek, professional and minimal look. If it's a project with multiple versions and ideas, a class with all of its lectures, or a hobbyist wanting to organize things better. Give it a try, all support and future ideas are welcome.  Welcome to a new way to take notes. The app is optimized for iPad, but I've adapted some features for iPhone.

Screenshots

Comp 2.04 screens
Arbornotes1 screens

Verdict

The call

The clearest difference is update cadence: Arbornotes at every 3 months against Comp 2.0's every 11 months. Comp 2.0's advantage is iOS requirement (15.0 vs 18.2). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Comp 2.0 ships an update every 11 months, Arbornotes every 3 months. Both last shipped on September 23, 2026.

Scorecard2 real differences · 7 level
Comp 2.0 versus Arbornotes: the parameters behind the verdict, then further details
ParameterComp 2.0Arbornotes
PriceFreeFree
Rating3.8 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyEvery 11 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.2
Further details — not scored
Size139 MB2 MB
Age rating4+4+
DeveloperHolley Performance ProductsLaurent Poirier

In-app purchases

None

Comp 2.0

No in-app purchases

None

Arbornotes

No in-app purchases

Questions

Is Comp 2.0 free?
Comp 2.0 is free to download, with no in-app purchases.
Is Arbornotes free?
Arbornotes is free to download, with no in-app purchases.
Do Comp 2.0 or Arbornotes have ads?
Neither Comp 2.0 nor Arbornotes shows ads.
Which is updated more often, Comp 2.0 or Arbornotes?
Comp 2.0 ships an update every 11 months, and Arbornotes every 3 months. Most recently, Comp 2.0 was updated on September 23, 2026 and Arbornotes on September 23, 2026.

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