# Brain Waves vs DV Numerus

The clearest difference is price: Brain Waves at $17.99 against DV Numerus's $79.99. Brain Waves also leads on in-app purchases (none vs 2) and iOS requirement (14.0 vs 18.2). DV Numerus's advantage is update cadence (every 5 weeks vs every 27 months). On ads and device support there is nothing between them.

Brain Waves costs $17.99 and DV Numerus $79.99 up front. DV Numerus sells 2 one-off in-app purchases. Brain Waves asks for nothing beyond the download.

Brain Waves ships an update every 27 months, DV Numerus every 5 weeks. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Brain Waves | DV Numerus |
| --- | --- | --- |
| Price | **$17.99** | $79.99 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 5 weeks** |
| Size | 10 MB | 7 MB |
| Requires iOS | **14.0** | 18.2 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Breitling](https://appshunter.io/developer/896353589) | [Marc Super](https://appshunter.io/developer/1792449328) |

## What reviewers say

### Brain Waves

[App page](https://appshunter.io/ios/app/brain-waves-magic-trick/id1583546052)

**In-app purchases:** none


### DV Numerus

[App page](https://appshunter.io/ios/app/dv-numerus/id6743944866)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Apple Watch Peek | $17.99 | one-time |
| Motherboard Integration | $49.99 | one-time |


## Frequently asked questions

### Is Brain Waves free?

Brain Waves costs $17.99, with no in-app purchases.

### Is DV Numerus free?

DV Numerus costs $79.99, and also offers in-app purchases.

### Do Brain Waves or DV Numerus have ads?

Neither Brain Waves nor DV Numerus shows ads.

### Which is updated more often, Brain Waves or DV Numerus?

Brain Waves ships an update every 27 months, and DV Numerus every 5 weeks. Most recently, Brain Waves was updated on October 18, 2026 and DV Numerus on October 5, 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.*