# RPN Big Float Calculator vs Learn Objective C Programming

The clearest difference is price: RPN Big Float Calculator at Free against Learn Objective C Programming's $1.99. RPN Big Float Calculator also leads on update cadence (monthly vs every 20 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

RPN Big Float Calculator is free to download; Learn Objective C Programming costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RPN Big Float Calculator ships an update monthly, Learn Objective C Programming every 20 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | RPN Big Float Calculator | Learn Objective C Programming |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rpn-big-float-calculator/id1312613680/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 20 months |
| Monetization | Free | — |
| Size | 14 MB | 35 MB |
| Requires iOS | 14.1 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Stephan Jancar](https://appshunter.io/developer/1107422127) | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) |

## What reviewers say

### RPN Big Float Calculator

[App page](https://appshunter.io/ios/app/rpn-big-float-calculator/id1312613680)

This advanced calculator offers unparalleled precision for complex mathematical operations, supporting up to 100,000 digits. It features both RPN mode and direct formula input, with a vast array of functions and built-in constants. Explore calculations with complex numbers, quaternions, and p-adic numbers.

**Highlights:** High precision up to 100,000 digits, RPN and direct formula input modes, Complex number and quaternion calculations, Elliptic integrals and theta-functions, Built-in mathematical constants, P-adic number calculations

**In-app purchases:** none


### Learn Objective C Programming

[App page](https://appshunter.io/ios/app/learn-objective-c-programming/id6738732599)

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

**In-app purchases:** none


## Frequently asked questions

### Is RPN Big Float Calculator free?

RPN Big Float Calculator is free to download, with no in-app purchases.

### Is Learn Objective C Programming free?

Learn Objective C Programming costs $1.99, with no in-app purchases.

### Do RPN Big Float Calculator or Learn Objective C Programming have ads?

Neither RPN Big Float Calculator nor Learn Objective C Programming shows ads.

### Which is updated more often, RPN Big Float Calculator or Learn Objective C Programming?

RPN Big Float Calculator ships an update monthly, and Learn Objective C Programming every 20 months. Most recently, RPN Big Float Calculator was updated on November 4, 2026 and Learn Objective C Programming on October 30, 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.*