# Simple Logarithm PRO vs RPN 48

The clearest difference is update cadence: RPN 48 at every 5 days against Simple Logarithm PRO's monthly. Simple Logarithm PRO's advantage is price ($1.99 vs $5.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Simple Logarithm PRO costs $1.99 and RPN 48 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple Logarithm PRO ships an update monthly, RPN 48 every 5 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Simple Logarithm PRO | RPN 48 |
| --- | --- | --- |
| Price | **$1.99** | $5.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Paid | — |
| Size | 180 MB | 15 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | +4 |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Guglielmo Pasa](https://appshunter.io/developer/417854438) |

## What reviewers say

### Simple Logarithm PRO

[App page](https://appshunter.io/ios/app/simple-logarithm-pro/id1662897702)

This app simplifies complex logarithm and exponentiation calculations with step-by-step solutions. It supports various input types, including decimals, fractions, and negative values, and provides a history of all calculations.

**Highlights:** Logarithm and exponentiation modes, Step-by-step solution display, Support for decimals, fractions, and negative values, Calculation history, Transformation between logarithm and exponentiation, Logarithm rules infographic, Solution sharing

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

**In-app purchases:** none


### RPN 48

[App page](https://appshunter.io/ios/app/rpn-48/id6814120753)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simple Logarithm PRO free?

Simple Logarithm PRO costs $1.99, with no in-app purchases.

### Is RPN 48 free?

RPN 48 costs $5.99, with no in-app purchases.

### Do Simple Logarithm PRO or RPN 48 have ads?

Neither Simple Logarithm PRO nor RPN 48 shows ads.

### Which is updated more often, Simple Logarithm PRO or RPN 48?

Simple Logarithm PRO ships an update monthly, and RPN 48 every 5 days. Most recently, Simple Logarithm PRO was updated on October 24, 2026 and RPN 48 on October 29, 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.*