# Simultaneous Equations vs Dear Aunt Sally

The clearest difference is review sentiment: Dear Aunt Sally at 100% against Simultaneous Equations's 0%. Dear Aunt Sally also leads on price (Free vs $1.99) and update cadence (every 2 months vs every 36 months). Simultaneous Equations's advantage is iOS requirement (12.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Dear Aunt Sally is free to download; Simultaneous Equations costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simultaneous Equations ships an update every 36 months, Dear Aunt Sally every 2 months. The most recent releases landed on September 23, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Simultaneous Equations | Dear Aunt Sally |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/dear-aunt-sally/id1577087345/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 50 MB | 17 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Neil Rohan](https://appshunter.io/developer/1522614743) |

## What reviewers say

### Simultaneous Equations

[App page](https://appshunter.io/ios/app/simultaneous-equations/id731495724)

This interactive tool helps students visualize and understand simultaneous equations. It demonstrates graphical, substitution, and elimination methods for solving them, with a quiz to test comprehension and lessons on real-world applications.

**Highlights:** Graphical representation of equations, Substitution method demonstration, Elimination method demonstration, Interactive equation definition, Quiz for understanding assessment, Illustrated lessons with real-world examples

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Simultaneous Equations free?

Simultaneous Equations costs $1.99, with no in-app purchases.

### Is Dear Aunt Sally free?

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

### Do Simultaneous Equations or Dear Aunt Sally have ads?

Neither Simultaneous Equations nor Dear Aunt Sally shows ads.

### Which is updated more often, Simultaneous Equations or Dear Aunt Sally?

Simultaneous Equations ships an update every 36 months, and Dear Aunt Sally every 2 months. Most recently, Simultaneous Equations was updated on September 23, 2026 and Dear Aunt Sally on October 6, 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.*