# Letter Vault vs Cryptogram

The clearest difference is in-app purchases: Letter Vault at none against Cryptogram's 1. Letter Vault also leads on update cadence (every 3 days vs every 3 months). Cryptogram's advantage is iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Cryptogram sells 1 one-off in-app purchase. Letter Vault asks for nothing beyond the download.

Letter Vault ships an update every 3 days, Cryptogram every 3 months. Both last shipped on October 12, 2026.

## The numbers

| Metric | Letter Vault | Cryptogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cryptogram-fun-puzzle-game/id6759915121/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 3 months |
| Monetization | — | Ad-supported |
| Size | 6 MB | 256 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VASSIM RAHIM](https://appshunter.io/developer/1854193429) | [Two4Tea](https://appshunter.io/developer/1437128903) |

## What reviewers say

### Letter Vault

[App page](https://appshunter.io/ios/app/letter-vault/id6755490885)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cryptogram

[App page](https://appshunter.io/ios/app/cryptogram-fun-puzzle-game/id6759915121)

Engage your mind with this word puzzle game where you decipher coded messages. Swap letters and use logic to reveal hidden quotes and sayings. Perfect for daily mental workouts and puzzle enthusiasts.

**Highlights:** Decipher coded messages, Swap letters and use logic, Reveal hidden quotes, Multiple difficulty levels, Hundreds of handcrafted puzzles, Daily mental workout

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |


## Frequently asked questions

### Is Letter Vault free?

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

### Is Cryptogram free?

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

### Do Letter Vault or Cryptogram have ads?

Both Letter Vault and Cryptogram show ads.

### Which is updated more often, Letter Vault or Cryptogram?

Letter Vault ships an update every 3 days, and Cryptogram every 3 months. Most recently, Letter Vault was updated on October 12, 2026 and Cryptogram on October 12, 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.*