# Sensorimotor Reactions vs EMWaver

The clearest difference is in-app purchases: EMWaver at none against Sensorimotor Reactions's 1. Sensorimotor Reactions's advantage is update cadence (monthly vs every 12 months) and iOS requirement (14.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Sensorimotor Reactions sells 1 one-off in-app purchase. EMWaver asks for nothing beyond the download.

Sensorimotor Reactions ships an update monthly, EMWaver every 12 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Sensorimotor Reactions | EMWaver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 12 months |
| Size | 2 MB | 4 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Viacheslav Romanenko](https://appshunter.io/developer/1046372418) | [Luis Lopes](https://appshunter.io/developer/1819487598) |

## What reviewers say

### Sensorimotor Reactions

[App page](https://appshunter.io/ios/app/sensorimotor-reactions/id1547238786)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Data management | $1.99 | one-time |


### EMWaver

[App page](https://appshunter.io/ios/app/emwaver/id6747035939)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sensorimotor Reactions free?

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

### Is EMWaver free?

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

### Do Sensorimotor Reactions or EMWaver have ads?

Neither Sensorimotor Reactions nor EMWaver shows ads.

### Which is updated more often, Sensorimotor Reactions or EMWaver?

Sensorimotor Reactions ships an update monthly, and EMWaver every 12 months. Most recently, Sensorimotor Reactions was updated on October 7, 2026 and EMWaver on October 6, 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.*