# Sensorimotor Reactions vs DT

The clearest difference is in-app purchases: DT at none against Sensorimotor Reactions's 1. DT also leads on update cadence (fortnightly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

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

Sensorimotor Reactions ships an update monthly, DT fortnightly. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sensorimotor Reactions | DT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 2 MB | 176 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Viacheslav Romanenko](https://appshunter.io/developer/1046372418) | [Tactile Robotics Ltd.](https://appshunter.io/developer/1514487210) |

## 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 |


### DT

[App page](https://appshunter.io/ios/app/dt-prepscanner-plus/id6478564727)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sensorimotor Reactions free?

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

### Is DT free?

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

### Do Sensorimotor Reactions or DT have ads?

Neither Sensorimotor Reactions nor DT shows ads.

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

Sensorimotor Reactions ships an update monthly, and DT fortnightly. Most recently, Sensorimotor Reactions was updated on October 7, 2026 and DT on October 25, 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.*