# Equation Encyclopedia vs MyProMind

The clearest difference is in-app purchases: MyProMind at none against Equation Encyclopedia's 9. MyProMind also leads on ads (none vs shown). Equation Encyclopedia's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Equation Encyclopedia sells 9 in-app purchases, starting at $6.99 per month. MyProMind asks for nothing beyond the download.

Equation Encyclopedia ships an update every 4 days, MyProMind weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Equation Encyclopedia | MyProMind |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Weekly |
| Size | 451 MB | 71 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [SAMUEL MOYOSORE O ADEYIGA](https://appshunter.io/developer/1874179107) | [DataGrids](https://appshunter.io/developer/1512824399) |

## What reviewers say

### Equation Encyclopedia

[App page](https://appshunter.io/ios/app/equation-encyclopedia/id6758647681)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $6.99 | per month |
| Pro Monthly | $10.99 | per month |
| Ultra Monthly | $17.99 | per month |
| Plus Yearly | $49.99 | per year |
| Pro Yearly | $99.99 | per year |
| Ultra Yearly | $149.99 | per year |
| 10 Energy | $0.99 | one-time |
| 30 Energy | $2.99 | one-time |
| 100 Energy | $8.99 | one-time |


### MyProMind

[App page](https://appshunter.io/ios/app/mypromind/id6779337963)

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

**In-app purchases:** none


## Frequently asked questions

### Is Equation Encyclopedia free?

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

### Is MyProMind free?

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

### Do Equation Encyclopedia or MyProMind have ads?

Equation Encyclopedia shows ads; MyProMind does not.

### Which is updated more often, Equation Encyclopedia or MyProMind?

Equation Encyclopedia ships an update every 4 days, and MyProMind weekly. Most recently, Equation Encyclopedia was updated on November 5, 2026 and MyProMind on October 31, 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.*