Best Calendar Calculator Free Apps

Calendar

by Apple Inc.

Free

Organize your entire schedule in one place. View events from multiple accounts, manage tasks, and plan gatherings with others. Stay on top of appointments, holidays, and birthdays with customizable views and shared calendars.

Time Calculator - Work Hours

Date, Calendar & Salary Clock

Free

This comprehensive toolkit helps manage time, dates, and schedules with various calculators. Track work hours, plan shifts, convert time formats, and calculate differences between dates. Ideal for professionals, freelancers, and everyday users needing precise time management.

Calendar Calculator Free

by Hiroyuki KATOH

Free

Easily calculate the number of working or non-working days between two dates, or determine a future or past date based on a specified duration. Customize your calendars with notes and colors, and import events from your iOS calendar.

Days + Date + Time Calculator

Days Between Two Dates

Free

Calculate the duration between two dates and times. This tool helps you find the exact number of days, hours, and minutes between any two points in time.

Simple Calendar・Schedule app

simple and cool calendar app

Free

This app offers a streamlined calendar experience, focusing on essential features for easy event management. It's designed for users who prefer simplicity and a clean interface over complex functionalities. Get organized with core calendar tools and helpful notifications.

Cute Calendar: Daily Planner

Simple calendar for daily plan

Free

Organize your daily life with a simple and friendly calendar app. Plan events, manage schedules, and track important dates with a clean interface and pleasant visual style. It works offline and prioritizes your privacy by keeping data on your device.

Countdown°

Remember your important days!

Free

Easily track important dates and events with customizable reminders and notifications. Organize your schedules, share them with others, and utilize widgets for quick access. Offers advanced features like iCloud backup and a date calculator.

Saturn Calendar

Manage and share your time

Free

This app is designed for students to manage complex school schedules, including rotating periods and group events. It simplifies planning with friends and classmates, allowing users to share schedules and coordinate activities easily. Stay organized for high school and college with features tailored to student life.

Simple Calendar - SimpleCal

Tasks & ToDo for your schedule

Free

This app offers a straightforward way to manage your schedule, sync events across devices using iCloud or Google Calendar, and stay organized with reminders and weather forecasts. Its customizable interface and simple design make adding and editing events quick and intuitive.

Basic Calculator+

Basic Four Function Calculator

Free

Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.

Calendar - 2026

2026 Calendar Planner,Reminder

Free

This daily planner and reminder app helps you organize tasks, meetings, and events with customizable views and notifications. It offers to-do lists, checklists, and the ability to add locations and notes to your schedule.

Date Calculator - Date Tools

Calculate the dates more easy

Free

Easily calculate the number of days between dates, with options to exclude holidays. Manage your schedule by creating events, setting alarms, and receiving timely notifications. This user-friendly tool simplifies time management.

PocketLife Calendar

Calendar Organizer & Reminders

Free

Organize your life with a stylish and intuitive calendar app. It offers powerful customization, seamless syncing with popular services, and natural language event creation. Share events, set reminders, and personalize your calendar views.