# Equation Encyclopedia vs Lingple

The clearest difference is update cadence: Lingple at daily against Equation Encyclopedia's every 4 days. Equation Encyclopedia's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Equation Encyclopedia sells 9 in-app purchases, starting at $6.99 per month and Lingple sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Equation Encyclopedia ships an update every 4 days, Lingple daily. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Equation Encyclopedia | Lingple |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Daily** |
| Size | 451 MB | 30 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SAMUEL MOYOSORE O ADEYIGA](https://appshunter.io/developer/1874179107) | [changjun lee](https://appshunter.io/developer/1785446235) |

## 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 |


### Lingple

[App page](https://appshunter.io/ios/app/lingple/id6760937201)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Equation Encyclopedia free?

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

### Is Lingple free?

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

### Do Equation Encyclopedia or Lingple have ads?

Both Equation Encyclopedia and Lingple show ads.

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

Equation Encyclopedia ships an update every 4 days, and Lingple daily. Most recently, Equation Encyclopedia was updated on October 10, 2026 and Lingple on October 3, 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.*