# Hidden Notes vs Category Solitaire Puzzle

Hidden Notes and Category Solitaire Puzzle are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Hidden Notes sells 10 one-off in-app purchases and Category Solitaire Puzzle sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Hidden Notes | Category Solitaire Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/category-solitaire-puzzle/id6819602171/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 258 MB | 563 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Hiker Games Joint Stock Company](https://appshunter.io/developer/492037747) | [Superboost Soft Limited](https://appshunter.io/developer/1879733249) |

## What reviewers say

### Hidden Notes

[App page](https://appshunter.io/ios/app/hidden-notes-logic-puzzle/id6811024780)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 | $1.99 | one-time |
| Continue Offer 1 | $2.99 | one-time |
| Continue Offer 2 | $5.99 | one-time |
| 5000 | $7.99 | one-time |
| No Ads | $7.99 | one-time |
| No Ads Plus | $12.99 | one-time |
| 10000 | $14.99 | one-time |
| 25000 | $29.99 | one-time |
| 50000 | $49.99 | one-time |
| 100000 | $89.99 | one-time |


### Category Solitaire Puzzle

[App page](https://appshunter.io/ios/app/category-solitaire-puzzle/id6819602171)

This card puzzle game challenges you to group topic-matching cards to clear the board and reveal hidden cards. Plan your moves strategically to progress through stages and enjoy a fresh take on card sorting with colorful themes. It's perfect for both quick breaks and extended play sessions.

**Highlights:** Group topic-matching cards, Clear cards to reveal hidden ones, Strategic move planning, Collect colorful card themes, Suitable for short breaks or long sessions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


## Frequently asked questions

### Is Hidden Notes free?

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

### Is Category Solitaire Puzzle free?

Category Solitaire Puzzle is free to download, with in-app purchases available.

### Do Hidden Notes or Category Solitaire Puzzle have ads?

Both Hidden Notes and Category Solitaire Puzzle 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.*