# Caros Calendar: To do, Planner

> This provides daily schedules and monthly weekly plans based on the calendar

Canonical page: [https://chrome-stats.com/d/com.keros.android.kerosplanner](https://chrome-stats.com/d/com.keros.android.kerosplanner)

## Overview

- **ID:** `com.keros.android.kerosplanner`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Caros
- **Category:** PRODUCTIVITY
- **Downloads:** 829,938
- **Rating:** 3.65 / 5 (2,474 ratings)
- **Version:** 5131-1636-CCA
- **Last updated:** 2025-12-10
- **First published:** 2011-06-03
- **Publisher country:** KR
- **Size:** 8.33 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.keros.android.kerosplanner)
- **Website:** [https://www.caros2.net](https://www.caros2.net/)
- **Privacy policy:** [https://www.caros2.net/Privacy\_Policy\_en.html](https://www.caros2.net/Privacy_Policy_en.html)

## Description

Caros Calendar is a versatile Chrome extension designed to organize your daily schedules and monthly weekly plans efficiently. Acting like a personal diary, it allows you to input and manage schedules across different color-coded calendars. Key features include daily schedule management, monthly and weekly planning, to-do list management, and customizable calendar colors.

The extension also supports shared calendar display and editing by syncing with your phone’s or registered accounts' calendars. Additional functionalities include anniversary and special day reminders, a simple memo feature, data backup and restore options, lunar calendar display, and customizable background color themes. No required permissions are needed unless you choose to enable shared calendar display or event notifications, ensuring user privacy and control.

## Rankings

- #76,079 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_CALENDAR`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.USE_EXACT_ALARM`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_CALENDAR`
- `com.android.vending.BILLING`
- `com.google.android.gms.permission.AD_ID`
- `com.keros.android.kerosplanner.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Many users praise Caros Calendar for its simple, user-friendly design. However, repeated update-related problems dominate feedback: data disappearing or becoming inaccessible after upgrades, failed or incomplete backups/restore, and difficulties transferring data between devices. Other recurring issues include poor or missing search functionality, recurring events not working as expected, widget disappearance, and stability/compatibility problems with newer Android versions. Overall sentiment is mixed: the concept is valued, but update-induced data integrity and maintenance problems are the main complaints.

### Pros

- Easy to use and a simple calendar interface
- Works well and generally reliable when it functions
- Well-liked, familiar calendar app with a simple design
- CSV backup/restore capability

### Cons

- Data loss or inaccessibility after updates/upgrades
- Backup/restore failures or inability to backup all calendars
- Search functionality missing or poorly functioning (no tool, unsorted results)
- Recurring events not working or not repeating next year
- Stability issues and Android compatibility (crashes on startup; data transfer problems; widget removal)

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.keros.android.kerosplanner)