# Zerko vs Roterra Just Puzzles

The clearest difference is price: Roterra Just Puzzles at Free against Zerko's $2.99. Zerko's advantage is in-app purchases (none vs 1) and ads (none vs shown). On ratings volume, update cadence, device support and iOS requirement there is nothing between them.

Roterra Just Puzzles is free to download; Zerko costs $2.99 up front. Roterra Just Puzzles sells 1 one-off in-app purchase. Zerko asks for nothing beyond the download.

Zerko holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 14 and 20 respectively. Written reviews point the same way: 93% of Zerko's written reviews are positive against 76% of Roterra Just Puzzles's.

Zerko ships an update every 3 weeks, Roterra Just Puzzles every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Zerko | Roterra Just Puzzles |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/zerko/id6470181559/reviews)** | [4.7 (20 ratings)](https://appshunter.io/ios/app/roterra-just-puzzles/id6701984938/reviews) |
| Number of ratings | 14 | **20** |
| Positive reviews | **93.3% of reviews** | 76.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 100 MB | 772 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maciej Targoni](https://appshunter.io/developer/495165602) | [Dig-It Games, LLC](https://appshunter.io/developer/582762702) |

## What reviewers say

### Zerko

[App page](https://appshunter.io/ios/app/zerko/id6470181559)

A relaxing puzzle game where you strategically place blocks to make all numbers on the board equal zero. Enjoy a no-pressure experience with calming audio and no in-app purchases or ads.

**Highlights:** Zero-sum number puzzles, Strategic block placement, Relaxing gameplay, No time pressure, No in-app purchases, No ads

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

**In-app purchases:** none


### Roterra Just Puzzles

[App page](https://appshunter.io/ios/app/roterra-just-puzzles/id6701984938)

Engage in mind-bending logic mazes with this anniversary edition. Solve challenging puzzles by shifting gravity and rotating cubes to guide characters through fantastical worlds. Choose your puzzle and embrace a new perspective to overcome obstacles.

**Highlights:** Mind-bending logic mazes, Shifting gravity mechanics, Path-swapping gems, Unexpected switches, Character-based puzzles, Rotatable cubes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 👍 Fun and entertaining puzzles
- 🚀 Smooth gameplay
- 💡 Unique and creative puzzles
- 👍 Great graphics and visuals

**What reviewers complain about**

- 🐛 Buggy and unstable at launch
- 🤑 Intrusive ads with no option to remove
- 🐛 Unsolvable puzzles
- 🐛 Puzzle loading issues

**Reported bugs**

- Puzzles not loading properly
- Unsolvable puzzles due to layout issues
- Camera bug preventing level completion

**Requested features**

- Option to pay to remove ads
- Ability to turn off music


## Frequently asked questions

### Is Zerko free?

Zerko costs $2.99, with no in-app purchases.

### Is Roterra Just Puzzles free?

Roterra Just Puzzles is free to download, with in-app purchases available.

### Which has better reviews, Zerko or Roterra Just Puzzles?

Zerko is rated higher. Zerko averages 4.9 out of 5 from 14 ratings, while Roterra Just Puzzles averages 4.7 from 20 ratings.

### Do Zerko or Roterra Just Puzzles have ads?

Roterra Just Puzzles shows ads; Zerko does not.

### Which is updated more often, Zerko or Roterra Just Puzzles?

Zerko ships an update every 3 weeks, and Roterra Just Puzzles every 2 weeks. Most recently, Zerko was updated on October 24, 2026 and Roterra Just Puzzles on October 25, 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.*