# FunctionCalc vs ProGraph Calculator

The clearest difference is price: ProGraph Calculator at Free against FunctionCalc's $0.99. ProGraph Calculator also leads on iOS requirement (16.0 vs 26.2). FunctionCalc's advantage is update cadence (every 8 days vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

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

FunctionCalc ships an update every 8 days, ProGraph Calculator every 3 months. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | FunctionCalc | ProGraph Calculator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (13 ratings)](https://appshunter.io/ios/app/functioncalc/id1455028714/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 months |
| Monetization | Paid | — |
| Size | 2 MB | 1 MB |
| Requires iOS | 26.2 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lawler Innovations, Inc](https://appshunter.io/developer/1455028713) | [Michael Pingleton](https://appshunter.io/developer/1584719976) |

## What reviewers say

### FunctionCalc

[App page](https://appshunter.io/ios/app/functioncalc/id1455028714)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ProGraph Calculator

[App page](https://appshunter.io/ios/app/prograph-calculator/id1629338359)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FunctionCalc free?

FunctionCalc costs $0.99, with no in-app purchases.

### Is ProGraph Calculator free?

ProGraph Calculator is free to download, with no in-app purchases.

### Do FunctionCalc or ProGraph Calculator have ads?

Neither FunctionCalc nor ProGraph Calculator shows ads.

### Which is updated more often, FunctionCalc or ProGraph Calculator?

FunctionCalc ships an update every 8 days, and ProGraph Calculator every 3 months. Most recently, FunctionCalc was updated on October 10, 2026 and ProGraph Calculator on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*