FunctionCalc vs Command
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Command
This app offers a command-line interface for performing complex calculations, including chained operations, variable assignments, and advanced mathematical functions. It supports various number bases, constants, and provides a built-in help system for ease of use.
- Command-line interface
- Chained calculations
- Variable assignment
- Complex numbers
- Multiple number bases
- Unit and function definition
- Extensive math functions
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Command-Line Calculator (CLCalculator) provides the most fluid interface, especially if you are performing chained calculations i.e. multiple calculations that rely on the results of previous calculations. By providing a command-line interface, CLCalculator allows you to easily enter and view the history of your calculations. You focus on your calculations instead of being intimidated by myriad of buttons on a traditional calculator interface! In addition to performing basic calculations, CLCalculator provides an array of features such as: - Assign and reuse variables - Complex numbers - Number bases i.e. binary, octal, hexadecimal - Constants e.g. e, pi - String manipulation - Matrices - Unit conversion: in-built and user-defined (create your own units!) - Functions: in-built and user-defined (create your own functions!) - Arithmetic functions e.g. fraction, square root, rounding off, ceiling, floor, logarithm - Algebra functions e.g. derivative, simplify symbolic expressions, solve linear equations - Bitwise functions e.g. bitwise and, not, or, left and right shift - Combinatorics functions e.g. Bell, Catalan, Stirling numbers - Geometry functions - Logical functions e.g. and, not, or, xor - Probability functions e.g. combinations, permutations, factorial - Relational functions - Set functions e.g. cartesian product, intersection, union - Statistics functions e.g. mean, median, mode, standard deviation, variance - Trigonometry functions e.g. sin, cos, tan, cot, sinh, acos - and much more! The app also comes with a comprehensive in-built help system with plenty of examples. CLCalculator is powered by math.js (https://mathjs.org/)
Screenshots
Verdict
The clearest difference is price: Command at Free against FunctionCalc's $0.99. Command also leads on device support (4 vs 2) and iOS requirement (13.0 vs 26.2). On rating, review sentiment, ratings volume and update cadence 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
Command is free to download; FunctionCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for FunctionCalc against 5.0 for Command. Both are backed by a comparable volume of ratings — 13 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
FunctionCalc ships an update every 8 days, Command every 5 days. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.
| Parameter | FunctionCalc | Command |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (13 ratings) | 5.0 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 13 — better | 5 |
| Update frequency | Every 8 days | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 26.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Lawler Innovations, Inc | Ketan Appa |
Customer experience
FunctionCalc
Command
In-app purchases
FunctionCalc
No in-app purchases
Command
No in-app purchases








