# Dear Aunt Sally vs Logarithm

The clearest difference is price: Dear Aunt Sally at Free against Logarithm's $3.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Dear Aunt Sally is free to download; Logarithm costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Dear Aunt Sally | Logarithm |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/dear-aunt-sally/id1577087345/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 17 MB | 2 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Neil Rohan](https://appshunter.io/developer/1522614743) | [Gomathy Shankaran](https://appshunter.io/developer/503956143) |

## What reviewers say

### Dear Aunt Sally

[App page](https://appshunter.io/ios/app/dear-aunt-sally/id1577087345)

This app teaches the order of operations (PEMDAS) using interactive modes. It helps students and programmers understand mathematical expression solving step-by-step, with a quiz feature for practice.

**Highlights:** Step-by-step expression analysis, Shunt Yard algorithm explanation, SOLVE mode for freehand entry, QUIZ mode with random expression generation, Stack/Queue dynamics visualization, Customizable quiz parameters

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

**In-app purchases:** none


### Logarithm

[App page](https://appshunter.io/ios/app/logarithm-exponent-polynomial/id6479218431)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dear Aunt Sally free?

Dear Aunt Sally is free to download, with no in-app purchases.

### Is Logarithm free?

Logarithm costs $3.99, with no in-app purchases.

### Do Dear Aunt Sally or Logarithm have ads?

Neither Dear Aunt Sally nor Logarithm shows ads.

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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.*