Comparison

TC Tuner vs Comp 2.0

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

Head to head
About

TC Tuner

Features
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Custom car and hot rod enthusiasts utilizing Edelbrock TC and its wireless communication can tune the performance of their automatic transmission via mobile devices. The TC Tuner App works with the Edelbrock TC Transmission Controller, providing a simplified and intuitive UI with wireless Bluetooth communication between mobile devices and Transmission Control Unit for setup, calibrating, and monitoring data. TC Tuner includes a Setup Wizard to further simplify user functionality. No software, tuning experience, laptop or wired handheld unit is required. Provides simplified electronic control of shift points, shift firmness, downshift sensitivity and shift aggressiveness. Includes digital channel display for monitoring performance and diagnostics page for troubleshooting.

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
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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

TC Tuner4 screens
Comp 2.04 screens

Verdict

The call

TC Tuner and Comp 2.0 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

TC Tuner ships an update every 12 months, Comp 2.0 every 11 months. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

ScorecardNo meaningful differences
TC Tuner versus Comp 2.0: the parameters behind the verdict, then further details
ParameterTC TunerComp 2.0
PriceFreeFree
Rating—3.8 (6 ratings) — better
Number of ratings—6 — better
Update frequencyEvery 12 monthsEvery 11 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size19 MB139 MB
Age rating4+4+
DeveloperEdelbrock CorpHolley Performance Products

In-app purchases

None

TC Tuner

No in-app purchases

None

Comp 2.0

No in-app purchases

Questions

Is TC Tuner free?
TC Tuner is free to download, with no in-app purchases.
Is Comp 2.0 free?
Comp 2.0 is free to download, with no in-app purchases.
Do TC Tuner or Comp 2.0 have ads?
Neither TC Tuner nor Comp 2.0 shows ads.
Which is updated more often, TC Tuner or Comp 2.0?
TC Tuner ships an update every 12 months, and Comp 2.0 every 11 months. Most recently, TC Tuner was updated on September 10, 2026 and Comp 2.0 on September 11, 2026.

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