# PsyPad vs StimuliApp

The clearest difference is update cadence: StimuliApp at every 6 weeks against PsyPad's every 4 months. StimuliApp also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

PsyPad ships an update every 4 months, StimuliApp every 6 weeks. The most recent releases landed on June 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | PsyPad | StimuliApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stimuliapp/id1497026540/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | — | Free |
| Size | 4 MB | 10 MB |
| Requires iOS | 13.5 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Turpin](https://appshunter.io/developer/735057969) | [Rafael Marin Campos](https://appshunter.io/developer/1497026539) |

## What reviewers say

### PsyPad

[App page](https://appshunter.io/ios/app/psypad/id735057966)

**Features:** macOS Compatibility

**In-app purchases:** none


### StimuliApp

[App page](https://appshunter.io/ios/app/stimuliapp/id1497026540)

Create precise psychophysical tests on iOS devices without programming. Assess perceptual capabilities using various stimuli like images, sounds, and videos with synchronized visual and auditory output. Features include real-time preview and automatic report generation.

**Highlights:** Precise timing with Metal framework, 60 or 120 Hz test options, Synchronized visual and auditory stimulation, Interactive stimulus creation with preview, Automatic report generation, Gamma-correction features

**In-app purchases:** none


## Frequently asked questions

### Is PsyPad free?

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

### Is StimuliApp free?

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

### Do PsyPad or StimuliApp have ads?

Neither PsyPad nor StimuliApp shows ads.

### Which is updated more often, PsyPad or StimuliApp?

PsyPad ships an update every 4 months, and StimuliApp every 6 weeks. Most recently, PsyPad was updated on June 7, 2026 and StimuliApp on September 9, 2026.

---

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