Comparison

ServiceCalc 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

ServiceCalc

This tool automates invoice calculations for service technicians, reducing errors and time spent. It handles labor, parts, tax, and totals, with features like a built-in timer and flashlight.

Highlights
  • Automated labor calculation
  • Parts/materials totaling
  • Configurable tax rates
  • Built-in timer
  • Flashlight function
  • Customizable skins
Features
Read full description

***FEATURED IN KEYNOTES MAGAZINE*** ServiceCalc cuts time spent and reduces errors when totaling invoices out in the field. This tool automates and displays the Labor, Parts/Materials, Tax, and Total. ServiceCalc is ideal for Locksmiths, Electricians, Plumbers, or any other service technicians that frequently write up invoices. Conventional Method: -Sub total line items on invoice -Add up labor on a standard calculator -Write down labor on invoice -Clear the calculator's screen -Add up parts/materials -Write down on invoice -Multiply tax rate -Write down on invoice -Clear calculator's screen -Add labor, parts, and tax -Write total on invoice ServiceCalc Method: -Sub total line items on invoice -Add up labor and tap Labor button -Add up parts and tap Parts button*** -Write down totals on invoice ***Parts are added per line. The timer is used to create a delay when making a single multiplication. This delay gives you enough time to read its subtotal to then transfer onto the invoice.*** After tapping Parts you can turn your iDevice sideways (landscape) for a larger readout. Quickly add the desired labor by tapping the half hour or full hour buttons. Two tax rates are configurable to allow multiple jurisdictions. The secondary tax rate can also be used as a tip calculator. Built in flashlight function for illuminating your invoice. 3 Skins to choose from: Original, Blue Steel, and Magnum ---------------------------------- Totals truncate to 2 decimal places. Tax is rounded up to the hundredths when the halfway point is a value of 5 or higher. Example: if tax = 2.775, actual tax = 2.78 if tax = 2.77445, actual tax = 2.78 if tax = 2.771, actual tax = 2.77 ---------------------------------- Compatibility: iPhone / iPod touch on iOS 8.0 or later and iPad on iOS 12.0 or later. Found a bug? Something not working? Have a suggestion? Feel free to contact me via email: farren@phoxlocks.com

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.

Screenshots

ServiceCalc4 screens
Comp 2.04 screens

Verdict

The call

The clearest difference is price: Comp 2.0 at Free against ServiceCalc's $0.99. ServiceCalc's advantage is update cadence (every 2 months vs every 11 months) and rating (4.0 vs 3.8). 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

CostPrice · In-app purchases · Ads · Monetization

Comp 2.0 is free to download; ServiceCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ServiceCalc holds the better App Store score, 4.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 6 respectively.

UpkeepUpdate frequency

ServiceCalc ships an update every 2 months, Comp 2.0 every 11 months. The most recent releases landed on September 24, 2026 and October 4, 2026 respectively.

Scorecard5 real differences · 5 level
ServiceCalc versus Comp 2.0: the parameters behind the verdict, then further details
ParameterServiceCalcComp 2.0
Price$0.99Free — better
Rating4.0 (4 ratings) — better3.8 (6 ratings)
Positive reviews90.9% of reviews—
Number of ratings46 — better
Update frequencyEvery 2 months — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size1 MB139 MB
Age rating4+4+
DeveloperFarren DomeniciHolley Performance Products

Customer experience

ServiceCalc

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews11 reviews
Positive90.9%
Neutral9.1%
Negative0.0%

Comp 2.0

All ratings6 ratings
Positive50.0%
Neutral33.3%
Negative16.7%

In-app purchases

None

ServiceCalc

No in-app purchases

None

Comp 2.0

No in-app purchases

Questions

Is ServiceCalc free?
ServiceCalc costs $0.99, with no in-app purchases.
Is Comp 2.0 free?
Comp 2.0 is free to download, with no in-app purchases.
Which has better reviews, ServiceCalc or Comp 2.0?
ServiceCalc is rated higher. ServiceCalc averages 4.0 out of 5 from 4 ratings, while Comp 2.0 averages 3.8 from 6 ratings.
Do ServiceCalc or Comp 2.0 have ads?
Neither ServiceCalc nor Comp 2.0 shows ads.
Which is updated more often, ServiceCalc or Comp 2.0?
ServiceCalc ships an update every 2 months, and Comp 2.0 every 11 months. Most recently, ServiceCalc was updated on September 24, 2026 and Comp 2.0 on October 4, 2026.

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