# Imprint illusions vs Naughty or Nice Test Meter

The clearest difference is ads: Imprint illusions at none against Naughty or Nice Test Meter's shown. Imprint illusions also leads on update cadence (every 2 months vs every 7 months). Naughty or Nice Test Meter's advantage is ratings volume (4.8K vs 92) and review sentiment (43% vs 26%). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Imprint illusions sells 1 one-off in-app purchase and Naughty or Nice Test Meter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Naughty or Nice Test Meter holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Naughty or Nice Test Meter has 4.8K ratings behind it against 92, so its average is the more settled of the two. Written reviews point the same way: 26% of Imprint illusions's written reviews are positive against 43% of Naughty or Nice Test Meter's.

Imprint illusions ships an update every 2 months, Naughty or Nice Test Meter every 7 months. The most recent releases landed on October 31, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Imprint illusions | Naughty or Nice Test Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (92 ratings)](https://appshunter.io/ios/app/imprint-illusions/id285375876/reviews) | **[4.5 (4.8K ratings)](https://appshunter.io/ios/app/naughty-or-nice-test-meter/id1062483244/reviews)** |
| Number of ratings | 92 | **4.8K** |
| Positive reviews | 25.7% of reviews | **43.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 41 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Redwheel Apps](https://appshunter.io/developer/285375879) | [Dualverse, Inc.](https://appshunter.io/developer/1145696722) |

## What reviewers say

### Imprint illusions

[App page](https://appshunter.io/ios/app/imprint-illusions/id285375876)

Explore a vast collection of optical illusions, including impossible designs, high-speed photography, and captivating sidewalk art. This app offers hundreds of exciting visuals to entertain and amaze.

**Highlights:** Hundreds of optical illusions, High-speed photography, Sidewalk illusion art, Impossible designs, Exciting visuals

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NO ADS | $1.99 | one-time |

**What reviewers like**

- 😄 Fun and entertaining optical illusions
- 👍 Good for showing friends
- 🎨 Interesting visual content
- 💰 Free or low-cost app
- ⭐ Some quality updates appreciated

**What reviewers complain about**

- 😞 Very limited content (only 4-5 illusions)
- ⏱️ Gets boring within minutes
- 🖼️ Poor image quality and resolution
- 🔤 Cluttered interface and bad layout
- 📱 Multiple illusions crammed per page

**Reported bugs**

- App crashes and won't open
- Images appear distorted or fuzzy
- Some illusions don't work properly
- Inconsistent display of content
- Phone stability issues after installation

**Requested features**

- Add significantly more optical illusions
- Implement full-screen image viewing
- Provide explanations for each illusion
- Improve user interface and layout
- Add zoom functionality for images


### Naughty or Nice Test Meter

[App page](https://appshunter.io/ios/app/naughty-or-nice-test-meter/id1062483244)

This app lets you test if you or your kids are naughty or nice with a fun "fingerprint scan" and animated elves. Generate official Nice/Naughty Certificates for your children, which can be customized and shared.

**Highlights:** "Fingerprint Scan" for testing, Animated elves analysis, Get certified Nice or Naughty, Customizable Santa's Certificates, Save and share certificates

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Certificate | $3.99 | one-time |

**What reviewers like**

- 👍 Fun app
- 🎅 Tells you if you're on the nice list
- 💡 Interesting concept

**What reviewers complain about**

- 🐛 Inconsistent results
- 😞 Makes kids feel bad for being 'naughty'
- 🤖 Fingerprint scanner not accurate

**Reported bugs**

- Keeps saying 'naughty' even for good behavior
- Doesn't recognize different fingers properly
- Crashes or freezes frequently

**Requested features**

- More detailed feedback on why you're naughty or nice
- Option to customize 'naughty' or 'nice' criteria
- Integration with real Santa/elf system


## Frequently asked questions

### Is Imprint illusions free?

Imprint illusions is free to download, with in-app purchases available.

### Is Naughty or Nice Test Meter free?

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

### Which has better reviews, Imprint illusions or Naughty or Nice Test Meter?

Naughty or Nice Test Meter is rated higher. Imprint illusions averages 4.3 out of 5 from 92 ratings, while Naughty or Nice Test Meter averages 4.5 from 4.8K ratings.

### Do Imprint illusions or Naughty or Nice Test Meter have ads?

Naughty or Nice Test Meter shows ads; Imprint illusions does not.

### Which is updated more often, Imprint illusions or Naughty or Nice Test Meter?

Imprint illusions ships an update every 2 months, and Naughty or Nice Test Meter every 7 months. Most recently, Imprint illusions was updated on October 31, 2026 and Naughty or Nice Test Meter on November 11, 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.*