# Hidden Differences vs Pizza Stack

The clearest difference is in-app purchases: Pizza Stack at none against Hidden Differences's 2. Pizza Stack also leads on ads (none vs shown). Hidden Differences's advantage is update cadence (daily vs every 11 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. Pizza Stack asks for nothing beyond the download.

Hidden Differences ships an update daily, Pizza Stack every 11 days. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Hidden Differences | Pizza Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 11 days |
| Size | 190 MB | 165 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) | [Waqar Ahmed](https://appshunter.io/developer/1885469795) |

## 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 |


### Pizza Stack

[App page](https://appshunter.io/ios/app/pizza-stack-build-and-serve/id6801127740)

**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 Pizza Stack free?

Pizza Stack is free to download, with no in-app purchases.

### Do Hidden Differences or Pizza Stack have ads?

Hidden Differences shows ads; Pizza Stack does not.

### Which is updated more often, Hidden Differences or Pizza Stack?

Hidden Differences ships an update daily, and Pizza Stack every 11 days. Most recently, Hidden Differences was updated on October 14, 2026 and Pizza Stack on October 19, 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.*