# NeuroVox vs Onion

NeuroVox and Onion are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

NeuroVox ships an update monthly, Onion every 3 weeks. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | NeuroVox | Onion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (118 ratings)](https://appshunter.io/ios/app/neurovox/id6446706483/reviews)** | — |
| Number of ratings | **118** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 99 MB | 68 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [NeuroVox](https://appshunter.io/developer/1678847471) | [ONION O NOVO INCONSCIENTE LTDA](https://appshunter.io/developer/6771774553) |

## What reviewers say

### NeuroVox

[App page](https://appshunter.io/ios/app/neurovox/id6446706483)

Access all official courses and training programs from Professor Pedro Calabrez in one place. Explore educational content designed to help you understand your brain and transform your life.

**Highlights:** Official NeuroVox courses, Professor Pedro Calabrez instruction, Brain understanding, Life transformation content, All courses in one space

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

**In-app purchases:** none


### Onion

[App page](https://appshunter.io/ios/app/onion/id6760300514)

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

**In-app purchases:** none


## Frequently asked questions

### Is NeuroVox free?

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

### Is Onion free?

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

### Do NeuroVox or Onion have ads?

Neither NeuroVox nor Onion shows ads.

### Which is updated more often, NeuroVox or Onion?

NeuroVox ships an update monthly, and Onion every 3 weeks. Most recently, NeuroVox was updated on October 24, 2026 and Onion on October 22, 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.*