# Naughty or Nice Test vs Brain Printer

The clearest difference is rating: Brain Printer at 5.0 against Naughty or Nice Test's 4.5. Brain Printer also leads on ads (none vs shown) and update cadence (fortnightly vs every 11 months). Naughty or Nice Test's advantage is ratings volume (89 vs 2). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Naughty or Nice Test sells 1 one-off in-app purchase and Brain Printer sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Brain Printer holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Naughty or Nice Test has 89 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 86% of Naughty or Nice Test's written reviews are positive against 100% of Brain Printer's.

Naughty or Nice Test ships an update every 11 months, Brain Printer fortnightly. The most recent releases landed on September 25, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Naughty or Nice Test | Brain Printer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (89 ratings)](https://appshunter.io/ios/app/naughty-or-nice-test/id949282046/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/brain-printer/id6741827154/reviews)** |
| Number of ratings | **89** | 2 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 5 MB | 220 MB |
| Requires iOS | **18.0** | 18.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Brandon Stecklein](https://appshunter.io/developer/498894252) | [Steven Strange](https://appshunter.io/developer/1637538508) |

## What reviewers say

### Naughty or Nice Test

[App page](https://appshunter.io/ios/app/naughty-or-nice-test/id949282046)

This novelty app simulates a fingerprint scan to humorously determine if you've been naughty or nice. It's designed for entertainment, perfect for holiday parties or pranks, with customizable scan speeds and responses.

**Highlights:** Simulated fingerprint scan, Naughty or nice determination, Customizable scan speed, Set custom responses, Prank functionality, Holiday entertainment

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advertising Removal | $2.99 | one-time |


### Brain Printer

[App page](https://appshunter.io/ios/app/brain-printer/id6741827154)

Scan your head to estimate brain volume and generate a 3D-printable model. This app uses facial scanning to calculate head circumference and convert measurements into a downloadable STL file for 3D printing.

**Highlights:** Brain size estimation, Facial scanning technology, 3D model generation, Downloadable STL file, Share results

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Save Unlimited STL Files | $2.99 | per 7 days |
| Single STL File | $4.99 | one-time |


## Frequently asked questions

### Is Naughty or Nice Test free?

Naughty or Nice Test is free to download, with in-app purchases available.

### Is Brain Printer free?

Brain Printer is free to download, with in-app purchases available.

### Which has better reviews, Naughty or Nice Test or Brain Printer?

Brain Printer is rated higher. Naughty or Nice Test averages 4.5 out of 5 from 89 ratings, while Brain Printer averages 5.0 from 2 ratings.

### Do Naughty or Nice Test or Brain Printer have ads?

Naughty or Nice Test shows ads; Brain Printer does not.

### Which is updated more often, Naughty or Nice Test or Brain Printer?

Naughty or Nice Test ships an update every 11 months, and Brain Printer fortnightly. Most recently, Naughty or Nice Test was updated on September 25, 2026 and Brain Printer on June 4, 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.*