# Function Calc vs TextChecker

The clearest difference is update cadence: Function Calc at monthly against TextChecker's every 17 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Function Calc ships an update monthly, TextChecker every 17 months. The most recent releases landed on September 23, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Function Calc | TextChecker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/function-calc/id1188227053/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 17 months |
| Monetization | Free | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Hugh Pelham](https://appshunter.io/developer/1188227052) | [Ali Hasan](https://appshunter.io/developer/1708569776) |

## What reviewers say

### Function Calc

[App page](https://appshunter.io/ios/app/function-calc/id1188227053)

This app offers a powerful, programmable scientific calculator with graphing capabilities. It allows users to create custom functions, store equations, and perform complex calculations with ease. The interface features a visible tape display and supports dictation for statistical analysis.

**Highlights:** Programmable custom functions, Graphing capabilities, Tape display with edit/undo, Unit conversions (120+), Dictate calculations, Export graphs (PDF, PNG)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### TextChecker

[App page](https://appshunter.io/ios/app/textchecker/id6499145390)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Function Calc free?

Function Calc is free to download, with no in-app purchases.

### Is TextChecker free?

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

### Do Function Calc or TextChecker have ads?

Neither Function Calc nor TextChecker shows ads.

### Which is updated more often, Function Calc or TextChecker?

Function Calc ships an update monthly, and TextChecker every 17 months. Most recently, Function Calc was updated on September 23, 2026 and TextChecker on October 2, 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.*