# Naughty or Nice Scan vs Zen Lines

The clearest difference is review sentiment: Zen Lines at 100% against Naughty or Nice Scan's 39%. Zen Lines also leads on rating (5.0 vs 3.8) and in-app purchases (none vs 1). Naughty or Nice Scan's advantage is ratings volume (954 vs 2) and iOS requirement (13.0 vs 18.6). On price and device support there is nothing between them.

Both are free to download. Naughty or Nice Scan sells 1 one-off in-app purchase. Zen Lines asks for nothing beyond the download.

Zen Lines holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Naughty or Nice Scan has 954 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 39% of Naughty or Nice Scan's written reviews are positive against 100% of Zen Lines's.

Naughty or Nice Scan ships an update every 5 months, Zen Lines every 2 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Naughty or Nice Scan | Zen Lines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (954 ratings)](https://appshunter.io/ios/app/naughty-or-nice-scan/id583308290/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zen-lines/id6762870137/reviews)** |
| Number of ratings | **954** | 2 |
| Positive reviews | 39.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 32 MB | 5 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [First Class Media B.V.](https://appshunter.io/developer/1394094946) | [CHASE PLACE LLC](https://appshunter.io/developer/444660458) |

## What reviewers say

### Naughty or Nice Scan

[App page](https://appshunter.io/ios/app/naughty-or-nice-scan/id583308290)

This app simulates a scanner to determine if someone is naughty or nice, inspired by movie elves. Parents can use it to encourage good behavior in children by controlling scan results. It features animated graphics and realistic sound effects for an immersive experience.

**Highlights:** Controlled scan results (random, nice, naughty), Fantastic animated HD graphics, Realistic sound effects, Amazing light effect during scan, Parenting tool for behavior management

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version, no ads (CHRISTMAS SALE: 50% OFF!) | $1.99 | one-time |

**What reviewers like**

- 🎅 Fun holiday-themed app
- 👍 Kids enjoy using the app
- 🎨 Visually appealing design

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 💰 Too many ads, intrusive monetization
- 🤔 Inconsistent scanning results

**Reported bugs**

- Camera not working properly
- Scanning feature unreliable
- App freezes after multiple uses

**Requested features**

- Allow custom percentage settings
- Improve scanning accuracy and reliability
- Reduce ads or offer ad-free version


### Zen Lines

[App page](https://appshunter.io/ios/app/zen-lines/id6762870137)

Embark on a meditative journey where your doodling transforms into a cool color mist, accompanied by soothing sounds. Express your inner peace through ink strokes that sing, finding tranquility and shaping your sound.

**Highlights:** Meditative doodling experience, Sound and color mist effects, Express inner peace through art, Shape your sound with doodles, Relaxing and tranquil gameplay

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

**In-app purchases:** none


## Frequently asked questions

### Is Naughty or Nice Scan free?

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

### Is Zen Lines free?

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

### Which has better reviews, Naughty or Nice Scan or Zen Lines?

Zen Lines is rated higher. Naughty or Nice Scan averages 3.8 out of 5 from 954 ratings, while Zen Lines averages 5.0 from 2 ratings.

### Do Naughty or Nice Scan or Zen Lines have ads?

Naughty or Nice Scan shows ads; Zen Lines does not.

### Which is updated more often, Naughty or Nice Scan or Zen Lines?

Naughty or Nice Scan ships an update every 5 months, and Zen Lines every 2 months. Most recently, Naughty or Nice Scan was updated on November 1, 2026 and Zen Lines on November 5, 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.*