Comparison

FunctionCalc vs CalcKX

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

Head to head
About

FunctionCalc

This all-in-one utility app helps veterans calculate VA disability benefits, track important dates, and perform everyday calculations. It includes a tip splitter, unit converter, and a powerful calculator with saved formulas.

Highlights
  • VA disability benefit calculator
  • Date countdown and elapsed time tracker
  • Tip calculator and bill splitting
  • Unit and currency converter
  • Time math and custom formulas
  • Full calculation history
Features
Read full description

VA disability calculator, date tracker, tip splitter, unit converter, and powerful everyday calculator in one app. Built for veterans and useful for everyone, this all-in-one toolkit helps you calculate VA disability benefits, track important dates, do time math, split bills, convert units and currency, and save formulas you use again and again. Whether you are planning a new claim, checking a countdown, or solving everyday math faster, everything is in one clean, easy-to-use app. VA Disability Calculator Enter your service-connected ratings and instantly see your combined disability rating using the official VA combined rating method, rounded the way the VA does it. Estimate monthly compensation based on your rating, dependents, marital status, and spouse Aid & Attendance eligibility. Create what-if scenarios by adding, removing, or changing ratings to see how a new claim, rating increase, appeal, or dependent update could affect your monthly pay before you file or submit changes. Date Calculator Track the time to or from any date that matters. Save sobriety milestones, anniversaries, retirement countdowns, due dates, memorial dates, birthdays, and more. See a live breakdown in years, months, days, hours, minutes, and seconds. Tap any unit to view the full span as a single total, including total days or total hours. Calculator Use a full-featured calculator with a clean interface, live results, and full history. See your complete expression as you type and get answers fast. Tip Calculator Calculate tips and split the bill in seconds. Choose your tip, select the number of people, and instantly see accurate per-person totals. Time Math Work with time the way you think. Enter values like 1:45, use them in calculations, and convert between time format and decimals with one tap. Function Calculator Access thousands of conversions and formulas in one place. Convert length, mass, volume, temperature, speed, area, data storage, and more, including live currency exchange rates. Browse built-in formulas or create your own custom formulas and save them for quick access. Why you'll love it: • VA combined rating calculator with estimated monthly compensation • What-if VA disability scenarios for ratings and dependent changes • Date countdowns and elapsed time tracking • Tip calculator and bill splitting • Time-format math • Unit conversions and live currency rates • Custom formulas and quick access favorites • Full calculation history • Clean dark interface • No ads. No subscriptions.

About

CalcKX

Features
Read full description

FREE - NO ADVERTISING An easy to use basic calculator for iPhone and iPad with separate display area for calculations. Special gimmick: have fun while looking for Easter Eggs!

Screenshots

FunctionCalc4 screens
CalcKX2 screens

Verdict

The call

The clearest difference is price: CalcKX at Free against FunctionCalc's $0.99. CalcKX also leads on iOS requirement (14.1 vs 26.2). On update cadence, 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

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

UpkeepUpdate frequency

FunctionCalc ships an update weekly, CalcKX every 4 days. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 8 level
FunctionCalc versus CalcKX: the parameters behind the verdict, then further details
ParameterFunctionCalcCalcKX
Price$0.99Free — better
Rating5.0 (13 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings13 — better—
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.214.1 — better
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperLawler Innovations, IncMartin Kowollik

In-app purchases

None

FunctionCalc

No in-app purchases

None

CalcKX

No in-app purchases

Questions

Is FunctionCalc free?
FunctionCalc costs $0.99, with no in-app purchases.
Is CalcKX free?
CalcKX is free to download, with no in-app purchases.
Do FunctionCalc or CalcKX have ads?
Neither FunctionCalc nor CalcKX shows ads.
Which is updated more often, FunctionCalc or CalcKX?
FunctionCalc ships an update weekly, and CalcKX every 4 days. Most recently, FunctionCalc was updated on November 2, 2026 and CalcKX on November 7, 2026.

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