# Letter Shift vs Vidimus

The clearest difference is ads: Vidimus at none against Letter Shift's shown. Vidimus also leads on iOS requirement (15.1 vs 18.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Letter Shift sells 1 one-off in-app purchase and Vidimus sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Letter Shift ships an update every 5 days, Vidimus every 3 days. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Letter Shift | Vidimus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vidimus/id6761784630/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 69 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [adam rogan](https://appshunter.io/developer/837572905) | [Eccentric Orbital](https://appshunter.io/developer/1896573403) |

## What reviewers say

### Letter Shift

[App page](https://appshunter.io/ios/app/letter-shift/id6759229771)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Vidimus

[App page](https://appshunter.io/ios/app/vidimus/id6761784630)

This logic puzzle game challenges you to fill stained glass regions with numbers that sum to targets, ensuring no adjacent regions share a value. It offers a daily free puzzle and a vast library unlockable with a one-time purchase, free of ads and subscriptions.

**Highlights:** Number sum logic puzzles, Stained glass art style, Daily free puzzle, One-time purchase for full library, Four constraint types, Halo constraints mechanic, Hints and candidate notes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vidimus Archive Unlock | $5.99 | one-time |


## Frequently asked questions

### Is Letter Shift free?

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

### Is Vidimus free?

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

### Do Letter Shift or Vidimus have ads?

Letter Shift shows ads; Vidimus does not.

### Which is updated more often, Letter Shift or Vidimus?

Letter Shift ships an update every 5 days, and Vidimus every 3 days. Most recently, Letter Shift was updated on October 10, 2026 and Vidimus on October 11, 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.*