# Knowledge of Gluf vs Comp Study

The clearest difference is ads: Knowledge of Gluf at none against Comp Study's shown. Knowledge of Gluf also leads on update cadence (weekly vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Knowledge of Gluf ships an update weekly, Comp Study monthly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Knowledge of Gluf | Comp Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Monthly |
| Size | 155 MB | 13 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [WHISPER INFORMATION TECHNOLOGY CO. L.L.C](https://appshunter.io/developer/1497453413) | [Burcak Behcet](https://appshunter.io/developer/1895113931) |

## What reviewers say

### Knowledge of Gluf

[App page](https://appshunter.io/ios/app/knowledge-of-gluf/id6740630388)

**Features:** macOS Compatibility

**In-app purchases:** none


### Comp Study

[App page](https://appshunter.io/ios/app/comp-studyrobreflix/id6762996754)

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

**In-app purchases:** none


## Frequently asked questions

### Is Knowledge of Gluf free?

Knowledge of Gluf is free to download, with no in-app purchases.

### Is Comp Study free?

Comp Study is free to download, with no in-app purchases.

### Do Knowledge of Gluf or Comp Study have ads?

Comp Study shows ads; Knowledge of Gluf does not.

### Which is updated more often, Knowledge of Gluf or Comp Study?

Knowledge of Gluf ships an update weekly, and Comp Study monthly. Most recently, Knowledge of Gluf was updated on October 30, 2026 and Comp Study on November 5, 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.*