# RPN Calculator 48 vs BASA Gliders

The clearest difference is price: BASA Gliders at Free against RPN Calculator 48's $3.99. BASA Gliders also leads on update cadence (every 2 months vs every 14 months) and iOS requirement (16.6 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

BASA Gliders is free to download; RPN Calculator 48 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RPN Calculator 48 ships an update every 14 months, BASA Gliders every 2 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RPN Calculator 48 | BASA Gliders |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.8 (245 ratings)](https://appshunter.io/ios/app/rpn-calculator-48/id336580727/reviews)** | — |
| Number of ratings | **245** | — |
| Positive reviews | 95.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 1 MB | 1 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Tom Kerrigan](https://appshunter.io/developer/295445504) | [Babu Srinivasan](https://appshunter.io/developer/1798392258) |

## What reviewers say

### RPN Calculator 48

[App page](https://appshunter.io/ios/app/rpn-calculator-48/id336580727)

This app offers a scientific calculator with Reverse Polish Notation (RPN) functionality, providing an alternative to the default calculator. It features a large, easy-to-read display, a 100-entry stack, and extensive undo/redo capabilities. Its design is inspired by classic HP calculators.

**Highlights:** Reverse Polish Notation (RPN), Scientific calculator functions, Swipe gestures for undo/redo, 100 entry stack, 6 memory buttons, State saving on exit

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent RPN implementation
- 👍 Familiar and intuitive interface
- 💡 Useful features for everyday calculations
- 🚀 Reliable and stable performance
- 👍 Large and visible stack display

**What reviewers complain about**

- 🐛 Lack of landscape mode support on iPad
- 💡 Could use more advanced features like matrix operations

**Reported bugs**

- Display issues in landscape mode on iPad

**Requested features**

- Add haptic feedback for key presses
- Implement ability to recall previous calculations from stack
- Improve landscape mode support on iPad


### BASA Gliders

[App page](https://appshunter.io/ios/app/basa-gliders/id6742435639)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RPN Calculator 48 free?

RPN Calculator 48 costs $3.99, with no in-app purchases.

### Is BASA Gliders free?

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

### Do RPN Calculator 48 or BASA Gliders have ads?

Neither RPN Calculator 48 nor BASA Gliders shows ads.

### Which is updated more often, RPN Calculator 48 or BASA Gliders?

RPN Calculator 48 ships an update every 14 months, and BASA Gliders every 2 months. Most recently, RPN Calculator 48 was updated on October 23, 2026 and BASA Gliders on October 25, 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.*