# Difference Master vs Zento

The clearest difference is ads: Zento at none against Difference Master's shown. Difference Master's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Difference Master sells 7 one-off in-app purchases and Zento sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Difference Master ships an update every 2 weeks, Zento monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Difference Master | Zento |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (25 ratings)](https://appshunter.io/ios/app/difference-master-find-them/id6757372624/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 238 MB | 33 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Shinrays Games](https://appshunter.io/developer/1875245310) | [Not Another Studio LTD](https://appshunter.io/developer/1896729562) |

## What reviewers say

### Difference Master

[App page](https://appshunter.io/ios/app/difference-master-find-them/id6757372624)

Engage your visual acuity in a captivating 3D puzzle game. Explore intricately designed objects from all angles, find subtle differences, and enjoy a relaxing, timer-free experience. Perfect for unwinding and sharpening your observation skills.

**Highlights:** 360° object exploration, Hundreds of vibrant levels, Relaxing, timer-free gameplay, Intuitive tap controls, High-quality 3D models

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 Coins | $0.99 | one-time |
| 5000 Coins | $4.99 | one-time |
| Remove ADS | $5.99 | one-time |
| 10000 Coins | $9.99 | one-time |
| 25000 Coins | $24.99 | one-time |
| 50000 Coins | $49.99 | one-time |
| 100000 Coins | $99.99 | one-time |


### Zento

[App page](https://appshunter.io/ios/app/zento-zen-loop-puzzle/id6770275298)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock the full game | $2.99 | one-time |


## Frequently asked questions

### Is Difference Master free?

Difference Master is free to download, with in-app purchases available.

### Is Zento free?

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

### Do Difference Master or Zento have ads?

Difference Master shows ads; Zento does not.

### Which is updated more often, Difference Master or Zento?

Difference Master ships an update every 2 weeks, and Zento monthly. Most recently, Difference Master was updated on October 24, 2026 and Zento on October 24, 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.*