# Hidden Differences vs Difference Detective

The clearest difference is in-app purchases: Difference Detective at none against Hidden Differences's 2. Difference Detective also leads on ads (none vs shown). Hidden Differences's advantage is update cadence (daily vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Hidden Differences sells 2 one-off in-app purchases. Difference Detective asks for nothing beyond the download.

Hidden Differences ships an update daily, Difference Detective every 3 weeks. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Hidden Differences | Difference Detective |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 190 MB | 185 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brownberry Technologies](https://appshunter.io/developer/1631344164) | [长城 缪](https://appshunter.io/developer/1815974426) |

## What reviewers say

### Hidden Differences

[App page](https://appshunter.io/ios/app/hidden-differences-find-them/id6738427940)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| More Lives | $4.99 | one-time |
| Remove Ads | $14.99 | one-time |


### Difference Detective

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hidden Differences free?

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

### Is Difference Detective free?

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

### Do Hidden Differences or Difference Detective have ads?

Hidden Differences shows ads; Difference Detective does not.

### Which is updated more often, Hidden Differences or Difference Detective?

Hidden Differences ships an update daily, and Difference Detective every 3 weeks. Most recently, Hidden Differences was updated on September 10, 2026 and Difference Detective on September 8, 2026.

---

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