# Difference Detective vs PixRot

The clearest difference is in-app purchases: Difference Detective at none against PixRot's 1. Difference Detective also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. PixRot sells 1 one-off in-app purchase. Difference Detective asks for nothing beyond the download.

Difference Detective ships an update every 3 weeks, PixRot every 10 days. The most recent releases landed on September 21, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Difference Detective | PixRot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 185 MB | 762 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [长城 缪](https://appshunter.io/developer/1815974426) | [木下 篤史](https://appshunter.io/developer/1573848027) |

## What reviewers say

### Difference Detective

[App page](https://appshunter.io/ios/app/difference-detective-spot-it/id6746324070)

**Features:** macOS Compatibility

**In-app purchases:** none


### PixRot

[App page](https://appshunter.io/ios/app/pixrot/id6807585864)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads Pack | $11.99 | one-time |


## Frequently asked questions

### Is Difference Detective free?

Difference Detective is free to download, with no in-app purchases.

### Is PixRot free?

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

### Do Difference Detective or PixRot have ads?

PixRot shows ads; Difference Detective does not.

### Which is updated more often, Difference Detective or PixRot?

Difference Detective ships an update every 3 weeks, and PixRot every 10 days. Most recently, Difference Detective was updated on September 21, 2026 and PixRot on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*