# Auditory Training vs Letra

The clearest difference is in-app purchases: Letra at none against Auditory Training's 11. Letra also leads on update cadence (every 4 days vs every 4 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Auditory Training sells 11 one-off in-app purchases. Letra asks for nothing beyond the download.

Auditory Training ships an update every 4 months, Letra every 4 days. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Auditory Training | Letra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/auditory-training/id1637321202/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 121 MB | 23 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thais Zemlickas Silva](https://appshunter.io/developer/1636061862) | [Cockpit Lancamentos](https://appshunter.io/developer/6773068399) |

## What reviewers say

### Auditory Training

[App page](https://appshunter.io/ios/app/auditory-training/id1637321202)

This app helps individuals improve auditory processing skills by offering customizable activities and games. It's designed for those with auditory processing disorders, students needing better focus, and professionals working with auditory development.

**Highlights:** Customizable activity composition, Multiple module types, Over 8 stimulus types, Variable difficulty levels, Progress-tracking games, Unlimited player support

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Temporal Pattern - 3 months | $2.99 | one-time |
| Non-Verbal Sounds - 3 months | $2.99 | one-time |
| Dichotic Digits - 3 months | $2.99 | one-time |
| Sequential Memory - 3 months | $2.99 | one-time |
| Alternated Dichotic - 3 months | $2.99 | one-time |
| Temporal Pattern - 1 year | $9.99 | one-time |
| Non-Verbal Sounds - 1 year | $9.99 | one-time |
| Dichotic Digits - 1 year | $9.99 | one-time |
| Temporal Resolution - 1 year | $9.99 | one-time |
| Sequential Memory - 1 year | $9.99 | one-time |
| Alternated Dichotic - 1 year | $9.99 | one-time |


### Letra

[App page](https://appshunter.io/ios/app/letra-som/id6773073010)

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

**In-app purchases:** none


## Frequently asked questions

### Is Auditory Training free?

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

### Is Letra free?

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

### Do Auditory Training or Letra have ads?

Neither Auditory Training nor Letra shows ads.

### Which is updated more often, Auditory Training or Letra?

Auditory Training ships an update every 4 months, and Letra every 4 days. Most recently, Auditory Training was updated on October 3, 2026 and Letra 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.*