# Hidden Differences vs Spot Difference

The clearest difference is in-app purchases: Spot Difference at none against Hidden Differences's 2. Spot Difference also leads on ads (none vs shown). Hidden Differences's advantage is update cadence (daily vs every 3 days) and iOS requirement (12.0 vs 15.0). On price and device support there is nothing between them.

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

Hidden Differences ships an update daily, Spot Difference every 3 days. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Hidden Differences | Spot Difference |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 3 days |
| Size | 190 MB | 301 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brownberry Technologies](https://appshunter.io/developer/1631344164) | [科明 谢](https://appshunter.io/developer/880092328) |

## 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 |


### Spot Difference

[App page](https://appshunter.io/ios/app/spot-difference-stamp/id6805383060)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hidden Differences free?

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

### Is Spot Difference free?

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

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

Hidden Differences shows ads; Spot Difference does not.

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

Hidden Differences ships an update daily, and Spot Difference every 3 days. Most recently, Hidden Differences was updated on September 28, 2026 and Spot Difference on September 30, 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.*