# Cognizer vs Slidem

The clearest difference is ads: Cognizer at none against Slidem's shown. Cognizer also leads on monetization model (free vs free with in-app purchases). Slidem's advantage is update cadence (every 3 weeks vs every 6 months) and rating (4.6 vs 4.4). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Cognizer sells 6 one-off in-app purchases and Slidem sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Slidem holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 5 and 22 respectively.

Cognizer ships an update every 6 months, Slidem every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Cognizer | Slidem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (5 ratings)](https://appshunter.io/ios/app/cognizer/id1088717471/reviews) | **[4.6 (22 ratings)](https://appshunter.io/ios/app/slidemcolor-puzzle/id6745274474/reviews)** |
| Number of ratings | 5 | **22** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 156 MB | 224 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ethan W Larson](https://appshunter.io/developer/940993305) | [PLAYCUS LIMITED](https://appshunter.io/developer/1451803459) |

## What reviewers say

### Cognizer

[App page](https://appshunter.io/ios/app/cognizer/id1088717471)

Engage your mind with a unique puzzle game featuring symbols and colors. Choose from various modes, including timed challenges and a relaxed, limitless option. Enjoy immersive ambient sounds and accessibility features for all players.

**Highlights:** Unique brain-challenge with symbols and colors, Modes with and without time limits, Ambient sounds by Ohrwert, Colorblindness options, Standard, Speed, and Zen gameplay modes

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tier 1 | $0.99 | one-time |
| Tier 2 | $1.99 | one-time |
| Tier 3 | $2.99 | one-time |
| Tier 6 | $5.99 | one-time |
| Tier 10 | $9.99 | one-time |
| Tier 20 | $19.99 | one-time |


### Slidem

[App page](https://appshunter.io/ios/app/slidemcolor-puzzle/id6745274474)

Slide colorful blocks to complete unique picture puzzles. Enjoy a relaxing and satisfying gameplay experience with hundreds of levels. Train your brain with creative challenges and crisp visuals.

**Highlights:** Unique picture puzzles, Relaxing gameplay, Hundreds of levels, Clean, minimalist design, Soothing sounds and ASMR effects

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clear One Color | $2.99 | one-time |
| Boms | $2.99 | one-time |
| Shuffle | $2.99 | one-time |
| 10 Tickets | $2.99 | one-time |
| NoAds | $7.99 | one-time |
| Super Pack | $9.99 | one-time |


## Frequently asked questions

### Is Cognizer free?

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

### Is Slidem free?

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

### Which has better reviews, Cognizer or Slidem?

Slidem is rated higher. Cognizer averages 4.4 out of 5 from 5 ratings, while Slidem averages 4.6 from 22 ratings.

### Do Cognizer or Slidem have ads?

Slidem shows ads; Cognizer does not.

### Which is updated more often, Cognizer or Slidem?

Cognizer ships an update every 6 months, and Slidem every 3 weeks. Most recently, Cognizer was updated on October 24, 2026 and Slidem on October 24, 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.*