FunctionCalc vs Calculator
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.
Calculator
This app transforms complex mathematical formulas into interactive computational graphs, allowing users to visualize and understand the logic behind calculations. It offers both scientific and boolean logic modes, with real-time editing capabilities for "what-if" analysis.
- Visualize math as node-based graphs
- Interactive graph editing
- Scientific calculator mode
- Boolean logic solver
- Save and load expressions
- Customizable themes
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Unleash the power of visual computation with Calculator - Visual Math, the revolutionary tool that shows you how your expressions are solved. Go beyond just getting an answer—understand the logic behind it. Perfect for students, engineers, developers, and anyone curious about mathematics, our app transforms complex formulas into beautiful, interactive computational graphs. Key Features: VISUALIZE YOUR MATH: Stop guessing! Enter any formula and instantly see it as a clear node-based graph. Understand the structure and flow of your calculations for algebra, calculus, and more. INTERACTIVE GRAPH EDITING: Don't just look—interact! Tap directly on any variable node in the graph to edit its value on the fly. The entire graph and the final result update in real-time, making it perfect for "what-if" analysis. DUAL-MODE POWER: Arithmetic Mode: A full-featured scientific calculator with functions like sin, cos, log, powers (^), and roots. Boolean Mode: A complete logic solver for evaluating complex expressions with AND, OR, NOT, XOR, and other logical operators. An essential tool for computer science. CLEAN & FOCUSED: A modern, intuitive interface designed for productivity. Switch between light, dark, and other themes to fit your style. SAVE & LOAD EXPRESSIONS: Build a library of your most-used formulas and expressions. Save your work and load it back anytime from your history. Whether you're a student trying to ace an exam, an engineer modeling a system, or a developer debugging an algorithm, Calculator - Visual Math is the tool you've been missing. Download now and start seeing math in a new way!
Screenshots
Verdict
The clearest difference is price: Calculator at Free against FunctionCalc's $0.99. Calculator also leads on update cadence (daily vs every 8 days) and device support (4 vs 2). FunctionCalc's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating 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
Calculator is free to download; FunctionCalc costs $0.99 up front. Calculator sells 1 one-off in-app purchase. FunctionCalc asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for FunctionCalc against 5.0 for Calculator. That said, the two scores are not equally well evidenced: FunctionCalc has 13 ratings behind it against 1, so its average is the more settled of the two.
FunctionCalc ships an update every 8 days, Calculator daily. The most recent releases landed on June 5, 2026 and August 25, 2026 respectively.
| Parameter | FunctionCalc | Calculator |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (13 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 13 — better | 1 |
| Update frequency | Every 8 days | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 26.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 140 MB |
| Age rating | 4+ | 4+ |
| Developer | Lawler Innovations, Inc. | Vladislav Alikov |
Customer experience
FunctionCalc
Calculator
In-app purchases
FunctionCalc
No in-app purchases
Calculator
- Support the App and remove Ads$1.99
Questions
Is FunctionCalc free?
Is Calculator free?
Which has better reviews, FunctionCalc or Calculator?
Do FunctionCalc or Calculator have ads?
Which is updated more often, FunctionCalc or Calculator?
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