# VRTX vs LetterRack

The clearest difference is iOS requirement: VRTX at 16.6 against LetterRack's 26.4. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. VRTX sells 23 one-off in-app purchases and LetterRack sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 3, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | VRTX | LetterRack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vrtx/id6738747388/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 28 MB |
| Requires iOS | **16.6** | 26.4 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Guillaume Bellut](https://appshunter.io/developer/817442888) | [Vincent Launay](https://appshunter.io/developer/1198218316) |

## What reviewers say

### VRTX

[App page](https://appshunter.io/ios/app/vrtx/id6738747388)

This tool instantly generates acrostics for any word, perfect for creating unique storytelling routines in magic tricks. It offers easy export options and integrates with other magic applications for advanced functionality.

**Highlights:** Instant acrostic generation, Creative storytelling routines, Easy export to notes or sharing, Seamless API integration with magic apps, Dice-controlled acrostic selection, Expanded dictionary options

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

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dizionario delle destinazioni | Free | one-time |
| Dicionário de Destino | Free | one-time |
| Reisezielwörterbuch | Free | one-time |
| Dictionnaire de destinations | Free | one-time |
| Destinations Dictionary | Free | one-time |
| Dizionario dei marchi | $4.99 | one-time |
| Dizionario degli animali | $4.99 | one-time |
| Dizionario degli oggetti | $4.99 | one-time |
| Dicionário de Objetos | $4.99 | one-time |
| Woordenboek van beroemdheden | $4.99 | one-time |
| Dicionário de Marcas | $4.99 | one-time |
| Dicionário de nomes | $4.99 | one-time |
| Dicionário de celebridades | $4.99 | one-time |
| Promi-Wörterbuch | $4.99 | one-time |
| Tierlexikon | $4.99 | one-time |
| Dictionnaire de prénoms | $4.99 | one-time |
| Dictionnaire d'objets | $4.99 | one-time |
| Animals Dictionary | $4.99 | one-time |
| Names Dictionary | $4.99 | one-time |
| Dictionnaire de marques | $4.99 | one-time |
| Celebrities Dictionary | $4.99 | one-time |
| Objects Dictionary | $4.99 | one-time |
| Full Version | $134.99 | one-time |


### LetterRack

[App page](https://appshunter.io/ios/app/letterrack/id6764377699)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Xtremagic Pass | $3.99 | per month |
| Xtremagic Pass | $24.99 | per year |
| Full Access (One-Time Purchase) | $7.99 | one-time |


## Frequently asked questions

### Is VRTX free?

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

### Is LetterRack free?

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

### Do VRTX or LetterRack have ads?

Neither VRTX nor LetterRack shows ads.

### Which is updated more often, VRTX or LetterRack?

VRTX ships an update every 3 weeks, and LetterRack every 3 weeks. Most recently, VRTX was updated on October 3, 2026 and LetterRack on September 25, 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.*