# Dear Aunt Sally vs EigenAlpha

The clearest difference is in-app purchases: Dear Aunt Sally at none against EigenAlpha's 1. Dear Aunt Sally also leads on iOS requirement (16.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. EigenAlpha sells 1 one-off in-app purchase. Dear Aunt Sally asks for nothing beyond the download.

## The numbers

| Metric | Dear Aunt Sally | EigenAlpha |
| --- | --- | --- |
| Price | Free | Free |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 17 MB | 7 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Neil Rohan](https://appshunter.io/developer/1522614743) | [JT Scientific Consulting LLC](https://appshunter.io/developer/1612699648) |

## 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


### EigenAlpha

[App page](https://appshunter.io/ios/app/eigenalpha/id6772005828)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $12.99 | one-time |


## Frequently asked questions

### Is Dear Aunt Sally free?

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

### Is EigenAlpha free?

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

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

Neither Dear Aunt Sally nor EigenAlpha 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.*