# SwiftRPN vs JellyZaping

The clearest difference is in-app purchases: SwiftRPN at none against JellyZaping's 1. SwiftRPN also leads on ads (none vs shown). JellyZaping's advantage is update cadence (every 2 days vs every 14 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. JellyZaping sells 1 one-off in-app purchase. SwiftRPN asks for nothing beyond the download.

SwiftRPN ships an update every 14 months, JellyZaping every 2 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SwiftRPN | JellyZaping |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/swiftrpn/id6470951024/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 3 MB | 59 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Gelvin](https://appshunter.io/developer/1573354051) | [Tadanobu Sekiguchi](https://appshunter.io/developer/1795599563) |

## What reviewers say

### SwiftRPN

[App page](https://appshunter.io/ios/app/swiftrpn/id6470951024)

This utility app provides a powerful Reverse Polish Notation (RPN) calculator with advanced features. It supports scalar types, vectors, and matrices, along with extensive built-in operators and unit conversions. Easily switch between number bases and visualize results.

**Highlights:** RPN stack for efficient calculations, Support for scalar, vector, and matrix types, 84 built-in operators with documentation, 74 built-in units for conversion, Multiple number base input and output (binary, octal, decimal, hex), BigInt support for integer calculations

**In-app purchases:** none


### JellyZaping

[App page](https://appshunter.io/ios/app/jellyzaping/id6757639322)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO | $3.99 | one-time |


## Frequently asked questions

### Is SwiftRPN free?

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

### Is JellyZaping free?

JellyZaping is free to download, with in-app purchases available.

### Do SwiftRPN or JellyZaping have ads?

JellyZaping shows ads; SwiftRPN does not.

### Which is updated more often, SwiftRPN or JellyZaping?

SwiftRPN ships an update every 14 months, and JellyZaping every 2 days. Most recently, SwiftRPN was updated on November 3, 2026 and JellyZaping on November 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.*