# Auto Train Brain vs hmmm

The clearest difference is update cadence: hmmm at fortnightly against Auto Train Brain's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Auto Train Brain ships an update monthly, hmmm fortnightly. The most recent releases landed on September 24, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Auto Train Brain | hmmm |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | — |
| Size | 150 MB | 248 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HMS Health Mobile Software](https://appshunter.io/developer/1389325417) | [KESIFYOLU TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1826566042) |

## What reviewers say

### Auto Train Brain

[App page](https://appshunter.io/ios/app/auto-train-brain/id1591731934)

This application facilitates neurofeedback and multi-sensory learning for individuals with dyslexia. It aims to enhance reading speed and reduce errors, positively impacting cognitive performance with regular use. An EPOCX header is required for functionality.

**Highlights:** Neurofeedback training, Multi-sensory learning, Increases reading speed, Minimizes reading errors, Improves cognitive performance, Requires EPOCX header

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

**In-app purchases:** none


### hmmm

[App page](https://appshunter.io/ios/app/hmmm/id6748612393)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Auto Train Brain free?

Auto Train Brain is free to download, with no in-app purchases.

### Is hmmm free?

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

### Do Auto Train Brain or hmmm have ads?

Neither Auto Train Brain nor hmmm shows ads.

### Which is updated more often, Auto Train Brain or hmmm?

Auto Train Brain ships an update monthly, and hmmm fortnightly. Most recently, Auto Train Brain was updated on September 24, 2026 and hmmm on September 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*