# Physical cosmology

> Directory of physical cosmology

Canonical page: [https://chrome-stats.com/d/com.do\_apps.catalog\_840](https://chrome-stats.com/d/com.do_apps.catalog_840)

## Overview

- **ID:** `com.do_apps.catalog_840`
- **Platform:** Android
- **Type:** Android app
- **Status:** Removed
- **Publisher:** Svetlana Sidorova
- **Category:** BOOKS\_AND\_REFERENCE
- **Downloads:** 72,838
- **Rating:** 4.31 / 5 (385 ratings)
- **Version:** 82.3.08
- **Last updated:** 2024-01-27
- **First published:** 2017-02-04
- **Publisher country:** RU
- **Size:** 6.83 MB
- **Data as of:** 2026-03-07
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.do_apps.catalog_840)
- **Website:** [http://path-knowledge.com/](http://path-knowledge.com/)
- **Privacy policy:** [http://path-knowledge.com/privacy\_policy/0840.html](http://path-knowledge.com/privacy_policy/0840.html)

## Description

The Physical Cosmology Chrome extension serves as a comprehensive directory dedicated to the study of physical cosmology. Users can explore detailed descriptions and organized information about fundamental cosmological principles and theories. This extension offers quick access to resources, enhancing understanding of the universe's composition, origin, and evolution.

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `com.android.vending.BILLING`
- `com.do_apps.catalog_840.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users find the app educational, informative, and a valuable resource for physics and cosmology knowledge. However, multiple reviewers note performance problems like slowness and issues with image downloads, along with intrusive ads and excessive unlocking of content, which detract from the experience. Some users also point out mixed-quality content including pseudoscientific material, and a need for more or better images.

### Pros

- Provides very useful and informative content related to physics and cosmology
- Contains a wealth of physics information, appearing complete and accurate
- Educational value, appreciated especially by those interested in astrophysics and physics
- Clear and accurate resources for users looking to learn about physical cosmology

### Cons

- App performance issues such as being too slow or stopping during image downloads
- Excessive or intrusive ads causing frustration among users
- Too much content 'unlocking' leading to dissatisfaction and app uninstallation
- Lack of good or sufficient images to aid understanding
- Presence of some inaccurate or pseudoscientific content mixed with factual information

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.do_apps.catalog_840)