# In extremis vs Lettrio

The clearest difference is in-app purchases: In extremis at none against Lettrio's 2. In extremis also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (12.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Lettrio sells 2 in-app purchases, starting at $1.99 per month. In extremis asks for nothing beyond the download.

In extremis ships an update every 2 days, Lettrio every 5 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | In extremis | Lettrio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lettrio-endless-words/id6778388034/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Size | 170 MB | 71 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JEUX OPLA](https://appshunter.io/developer/1757417350) | [Comey](https://appshunter.io/developer/1705253260) |

## What reviewers say

### In extremis

[App page](https://appshunter.io/ios/app/in-extremis/id6544801596)

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

**In-app purchases:** none


### Lettrio

[App page](https://appshunter.io/ios/app/lettrio-endless-words/id6778388034)

This word game offers an infinite grid of letters that constantly replenishes as you form words. Score points by creating longer words and earn more time to keep playing. Enjoy offline play and compete on weekly leaderboards.

**Highlights:** Infinite letter grid, Word linking gameplay, Time-based challenges, Scoring based on word length, Offline play, Online leaderboards, Supports 6 languages

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lettrio ad-free | $1.99 | per month |
| Lettrio ad-free | $9.99 | one-time |


## Frequently asked questions

### Is In extremis free?

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

### Is Lettrio free?

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

### Do In extremis or Lettrio have ads?

Neither In extremis nor Lettrio shows ads.

### Which is updated more often, In extremis or Lettrio?

In extremis ships an update every 2 days, and Lettrio every 5 days. Most recently, In extremis was updated on November 4, 2026 and Lettrio on November 5, 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.*