# FunctionCalc

> All-in-one calculator, date tracker, tip splitter, and unit converter for veterans and general use. (iPhone/iPad app by Lawler Innovations, Inc..)

- Source: https://appshunter.io/ios/app/functioncalc/id1455028714 (this page in markdown: same URL + `.md`)
- Developer: [Lawler Innovations, Inc.](https://appshunter.io/developer/1455028713)
- Category: Utilities
- Price: $0.99 (on sale, was $3.99)
- Rating: 5.00/5 from 13 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.2 · 2 MB
- Languages: English
- Released: 2019-03-10
- Data updated: 2026-06-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/functioncalc/id1455028714/reviews.md

## What is FunctionCalc?

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.

## Key features

- 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

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/functioncalc/id1455028714/reviews.md

### 5/5 — OUTSTANDING

*2026-04-02, version 5.12*

Fantastic app! Great calculator for everyday life, or for business purposes such as calculating payments, traveling by checking currency exchange rates, buying fuel in Canada or anywhere overseas,  construction calculations, you name it, it can do it!

### 5/5 — Great Conversion App

*2019-04-26, version 1.1*

Great app for all types of conversions. Definitely worth the $$. It’s been so useful for everything from currency to weights. Even useful for pilots.

## Frequently asked questions about FunctionCalc

### What is FunctionCalc used for?

FunctionCalc is an all-in-one utility app that helps users calculate VA disability benefits, track important dates, split bills, convert units, and perform general calculations. It's designed for veterans but useful for everyone.

### How does the VA disability calculator in FunctionCalc work?

The VA disability calculator in FunctionCalc uses the official VA combined rating method to determine your combined disability rating. It can also estimate monthly compensation based on your rating, dependents, and other eligibility factors.

### Can FunctionCalc help me track important dates?

Yes, FunctionCalc includes a date calculator that allows you to track time to or from any date. You can save milestones, countdowns, and see a live breakdown in various time units.

### Does FunctionCalc have ads?

No, FunctionCalc does not have ads. The app is a paid utility designed to be ad-free for a better user experience.

### What devices is FunctionCalc available on?

FunctionCalc is available on iPhone and iPad devices, indicated by its support for iOS platforms.

### How often is FunctionCalc updated?

FunctionCalc was last updated on March 31, 2026, with version 5.11. This indicates a commitment to ongoing maintenance and feature improvements.

### What is the price of FunctionCalc?

FunctionCalc is a paid app priced at $3.99. There are no subscriptions or in-app purchases required after the initial purchase.

### What is the age rating for FunctionCalc?

FunctionCalc has an age rating of 4+, making it suitable for a wide range of users, including children and adults.

## Version history (last 5 releases)

### 5.13 — 2026-04-02

Bug fixes

### 5.11 — 2026-03-31

bug fixes

### 5.1 — 2026-03-30

Updated the quick access buttons to be movable

### 5.0 — 2026-03-28

This version introduces the new VA Disability Calculator and Date Calculator. The VA Disability Calculator helps veterans estimate their combined disability rating using the official VA combined rating method and view estimated monthly compensation based on rating, dependents, marital status, and spouse Aid & Attendance eligibility. It also supports “what-if” planning, so veterans can see how new ratings, rating increases, appeals, or dependent changes may affect their monthly pay. The new Date Calculator lets you save important dates and track them with live countdowns or elapsed time in years, months, days, hours, minutes, and seconds. Great for sobriety milestones, anniversaries, retirement countdowns, due dates, memorial dates, and more.

### 3 — 2022-11-22

Bug fixes and added a few new features.  First, a new display that shows the numbers that were just calculated. Second, an updated the user interface so adding preset buttons is easier to understand. Finally, an option to erase all presets from main menu.

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## More apps by Lawler Innovations, Inc.

- [Learn Thai - Alphabet](https://appshunter.io/ios/app/learn-thai-alphabet/id1505140057)
- [CalorieCalc - Averaging](https://appshunter.io/ios/app/caloriecalc-averaging/id6762500390)

All apps by Lawler Innovations, Inc.: https://appshunter.io/developer/1455028713

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*