Comparison

ServiceCalc vs Edge EZX

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

Edge EZX

Enhance your late model diesel truck's performance with this app, offering improved drivability, mileage, and power. Control features like tire size calibration and DPF regens via a smartphone interface. Built-in safety features protect your engine.

Highlights
  • Improved drivability, mileage, and power
  • Interactive smartphone app control
  • 5 adjustable power levels
  • Tire size calibration
  • Manual DPF regens
  • TPMS adjustment
  • Built-in turbo timer
Features
Read full description

The EZX from Edge Products offers late model diesel truck owners better drivability, improved mileage and more power through an all-new module with an interactive smartphone app like nothing else on the market. Developed specifically for late model Ram 6.7L Cummins, Ford 6.7L Power Stroke diesel and Chevy 3.0L Duramax, the EZX builds upon our popular Edge EZ box that has led the market for more than a decade with mild power gains and modest mileage improvements. Using the industry's most advanced technology, our new smartphone interface offers unmatched adjustability over your trucks features. The simple plug n’ play under hood module integrates seamlessly with your truck for complete control over your driving experience with 5 power levels adjustable on the fly. Using factory steering wheel controls, the factory gauge cluster and our integrated app, the EZX adds the extra power and throttle response your diesel needs. Our emissions safe tuning offers broad usable power gains you’ll feel while towing and daily driving. This smartphone app offers simple control over features like tire size calibration, manual DPF regens, TPMS adjustment, and even a built-in turbo timer (options vary by vehicle make and model). Built-in safety features like Engine Coolant Temperature protection offers the peace of mind knowing your engine always performs to the best of its ability without potential of harm from the added power. Pick up the all-new EZX module anywhere Edge Products devices are sold and download the app now!

Screenshots

ServiceCalc4 screens
Edge EZX4 screens

Verdict

The call

The clearest difference is review sentiment: ServiceCalc at 91% against Edge EZX's 0%. ServiceCalc also leads on rating (4.0 vs 2.8) and iOS requirement (12.0 vs 15.0). Edge EZX's advantage is price (Free vs $0.99). On ratings volume, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Edge EZX 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 2.8. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews point the same way: 91% of ServiceCalc's written reviews are positive against 0% of Edge EZX's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
ServiceCalc versus Edge EZX: the parameters behind the verdict, then further details
ParameterServiceCalcEdge EZX
Price$0.99Free — better
Rating4.0 (4 ratings) — better2.8 (11 ratings)
Positive reviews90.9% of reviews — better0.0% of reviews
Number of ratings411 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size1 MB130 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%

Edge EZX

All ratings11 ratings
Positive36.4%
Neutral18.2%
Negative45.5%
Written reviews5 reviews
Positive0.0%
Neutral20.0%
Negative80.0%

In-app purchases

None

ServiceCalc

No in-app purchases

None

Edge EZX

No in-app purchases

Questions

Is ServiceCalc free?
ServiceCalc costs $0.99, with no in-app purchases.
Is Edge EZX free?
Edge EZX is free to download, with no in-app purchases.
Which has better reviews, ServiceCalc or Edge EZX?
ServiceCalc is rated higher. ServiceCalc averages 4.0 out of 5 from 4 ratings, while Edge EZX averages 2.8 from 11 ratings.
Do ServiceCalc or Edge EZX have ads?
Neither ServiceCalc nor Edge EZX shows ads.
Which is updated more often, ServiceCalc or Edge EZX?
ServiceCalc ships an update every 2 months, and Edge EZX every 2 months. Most recently, ServiceCalc was updated on October 10, 2026 and Edge EZX on October 12, 2026.

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