# StimuliApp vs Norwegian Keyboard

The clearest difference is in-app purchases: StimuliApp at none against Norwegian Keyboard's 1. StimuliApp also leads on ads (none vs shown) and update cadence (every 6 weeks vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Norwegian Keyboard sells 1 one-off in-app purchase. StimuliApp asks for nothing beyond the download.

StimuliApp ships an update every 6 weeks, Norwegian Keyboard every 10 months. The most recent releases landed on September 9, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | StimuliApp | Norwegian Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stimuliapp/id1497026540/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 10 months |
| Monetization | Free | — |
| Size | 10 MB | 30 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rafael Marin Campos](https://appshunter.io/developer/1497026539) | [Rushikesh Trivedi](https://appshunter.io/developer/1532598190) |

## What reviewers say

### 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


### Norwegian Keyboard

[App page](https://appshunter.io/ios/app/norwegian-keyboard-translator/id1612916913)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


## Frequently asked questions

### Is StimuliApp free?

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

### Is Norwegian Keyboard free?

Norwegian Keyboard is free to download, with in-app purchases available.

### Do StimuliApp or Norwegian Keyboard have ads?

Norwegian Keyboard shows ads; StimuliApp does not.

### Which is updated more often, StimuliApp or Norwegian Keyboard?

StimuliApp ships an update every 6 weeks, and Norwegian Keyboard every 10 months. Most recently, StimuliApp was updated on September 9, 2026 and Norwegian Keyboard on September 23, 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.*