# Equation Encyclopedia vs Formulist

The clearest difference is in-app purchases: Formulist at none against Equation Encyclopedia's 9. Formulist also leads on ads (none vs shown). Equation Encyclopedia's advantage is update cadence (every 4 days vs every 6 weeks). On price, device support and iOS requirement there is nothing between them.

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

Equation Encyclopedia ships an update every 4 days, Formulist every 6 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Equation Encyclopedia | Formulist |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Size | 451 MB | 28 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAMUEL MOYOSORE O ADEYIGA](https://appshunter.io/developer/1874179107) | [BAHADIR YILDIRIM](https://appshunter.io/developer/1894608809) |

## 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 |


### Formulist

[App page](https://appshunter.io/ios/app/formulist/id6762542937)

**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 Formulist free?

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

### Do Equation Encyclopedia or Formulist have ads?

Equation Encyclopedia shows ads; Formulist does not.

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

Equation Encyclopedia ships an update every 4 days, and Formulist every 6 weeks. Most recently, Equation Encyclopedia was updated on October 10, 2026 and Formulist on October 15, 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.*