# Darshan Operating System

> Learn OS algorithms like FIFO, LRU & enjoy fun quizzes in one app.

Canonical page: [https://chrome-stats.com/d/com.darshan.callflash](https://chrome-stats.com/d/com.darshan.callflash)

## Overview

- **ID:** `com.darshan.callflash`
- **Platform:** Android
- **Type:** Android app
- **Status:** Removed
- **Publisher:** Darshan Apps
- **Category:** EDUCATION
- **Downloads:** 773
- **Version:** 7.1.0
- **Last updated:** 2025-11-25
- **First published:** 2019-06-20
- **Size:** 14 MB
- **Data as of:** 2026-01-21
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.darshan.callflash)
- **Privacy policy:** [https://sites.google.com/view/darshanoperatingsystem/home](https://sites.google.com/view/darshanoperatingsystem/home)

## Description

This educational app helps you learn important Operating System algorithms such as First In First Out (FIFO), Least Recently Used (LRU), Optimal Page Replacement, and Second Chance. Each topic is explained in a simple way for easy understanding.<br>Along with OS learning, the app also includes fun quizzes like Animal Quiz, Food Quiz and many more to improve general knowledge. The app is lightweight, user-friendly and perfect for students who want to study OS concepts and enjoy quizzes at the same time.

## Permissions and access

### Permissions

- `com.android.vending.CHECK_LICENSE`
- `com.darshan.callflash.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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