# Stack the Pixels vs HiddenForm

The clearest difference is iOS requirement: Stack the Pixels at 15.6 against HiddenForm's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Stack the Pixels sells 1 one-off in-app purchase and HiddenForm sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Stack the Pixels | HiddenForm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/hiddenform/id6809650487/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 206 MB | 96 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Novospir](https://appshunter.io/developer/1688170403) | [Kyndlo LLC](https://appshunter.io/developer/1878300995) |

## What reviewers say

### Stack the Pixels

[App page](https://appshunter.io/ios/app/stack-the-pixels-daily-enigma/id6746057183)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock previous boards | $0.99 | one-time |


### HiddenForm

[App page](https://appshunter.io/ios/app/hiddenform/id6809650487)

Create silhouette jigsaw puzzles with uniquely shaped pieces. Discover hidden details within the artwork and enjoy a tactile, satisfying assembly experience. Three puzzles are always free, with options to unlock more.

**Highlights:** Silhouette jigsaw puzzles, Uniquely shaped pieces, Hidden details discovery, 3D wood/plexiglass pieces, Tactile connection sounds, Spacious landscape assembly table, Progress saving

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puzzle Collection | $1.99 | one-time |
| Remove all ads | $4.99 | one-time |


## Frequently asked questions

### Is Stack the Pixels free?

Stack the Pixels is free to download, with in-app purchases available.

### Is HiddenForm free?

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

### Do Stack the Pixels or HiddenForm have ads?

Both Stack the Pixels and HiddenForm show ads.

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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.*