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Best Star Calendar Calculator Apps

231+ iOS apps curated and reviewed

4.7 avg rating
18 free apps
Updated June 2026

If you already know STAR CALENDAR CALCULATOR, this is the deeper bench. 231+ star calendar calculator apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Top Picks for Star Calendar Calculator

STAR CALENDAR CALCULATOR#1

STAR CALENDAR CALCULATOR by Lucas King

Editor's Choice
📊 Productivity
5.0(4 ratings)
$3.99
STAR CALENDAR CALCULATOR screenshot 1
STAR CALENDAR CALCULATOR screenshot 2
STAR CALENDAR CALCULATOR screenshot 3
STAR CALENDAR CALCULATOR screenshot 4
STAR CALENDAR CALCULATOR screenshot 5
STAR CALENDAR CALCULATOR screenshot 6

This innovative calendar tool displays a user-friendly clock face that tracks time cycles, including days, weeks, and months, and offers alternative calendar systems, such as 360 and 364 day calendars, that correct and enhance the traditional Gregorian calendar. Explore how this interactive tool can help you visualize time in a new way and gain a deeper understanding of the relationships between days, seasons, and zodiac signs.

Calendars: Schedule Planner#2

Calendars: Schedule Planner by Readdle Technologies Limited

Reminder・Tasks Organizer・To Do
Strong Contender
📊 Productivity
4.7😊(120K ratings)
FreeAdsIn-App Purchases
#75in Productivity
Calendars: Schedule Planner screenshot 1
Calendars: Schedule Planner screenshot 2
Calendars: Schedule Planner screenshot 3
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Calendars: Schedule Planner screenshot 5
Calendars: Schedule Planner screenshot 6

Plan your day, schedule events, set reminders, and stay organized with this versatile calendar and planner app. Manage tasks, appointments, and to-do lists easily in one place. Download now and take control of your schedule!

What We Love

  • 🌟 Excellent calendar app
  • 👍 Easy to use and organize
  • 🎨 Helpful color-coding
  • 📆 Seamless integration with other calendars

Room to Improve

  • 🐛 Occasional glitches and data loss
  • 💰 Concerns over subscription model
  • 🕰️ Cumbersome date/time selection process
Calculator for iPad!#3

Calculator for iPad! by 7th Gear

Basic & Scientific Calculator
Worth Considering
🔧 Utilities
4.7😊(60K ratings)
Free
Calculator for iPad! screenshot 1
Calculator for iPad! screenshot 2
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Calculator for iPad! screenshot 4

Quickly crunch numbers with our user-friendly iPad calculator app that offers basic and scientific functions. Download now for accurate calculations on the go!

What We Love

  • 📐 Versatile calculator with basic and scientific modes
  • 📝 Useful note-taking and calculation history features
  • 🎨 Customizable color schemes
  • 💻 Works well on both iPad and iPhone

Room to Improve

  • 💰 Ads can be intrusive in free version
  • 🔒 Lack of transparency around in-app purchases
  • 🔍 Difficulty finding and accessing premium features

More Star Calendar Calculator apps to explore

4
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

A color calculator app that helps users find complementary color schemes for design projects. Simply input a base color and let the app generate harmonious color combinations for your projects. Try it now to elevate your design choices!

🔧 Utilities
(15K)
5
Calendar ·
Calendar ·
Calendar ·
Planner Organizer & Agenda
Free

Plan, organize, and manage your schedule effectively with this all-in-one planner and organizer app. Stay on top of your tasks, events, and appointments effortlessly. Download now to boost your productivity!

📊 Productivity
(59K)
6
24me: Calendar・Planner & To Do
24me: Calendar・Planner & To Do
24me: Calendar・Planner & To Do
Reminders, Schedule, Organizer
Free

An intelligent scheduling app that combines calendar, tasks, notes, and personal accounts in one place, allowing users to manage their daily activities efficiently. Stay organized, save time, and streamline your life with this all-in-one productivity tool.

📊 Productivity
(6.7K)
7
Digits Tape Calculator
Digits Tape Calculator
Digits Tape Calculator
The calculator for humans
$1.99

Try Digits Tape Calculator, the calculator designed for humans. With a unique correctable tape feature, spreadsheet-like editing, and calculator simplicity, it's perfect for tracking expenses and budgets. Get organized on-the-go with Digits 3 for iOS.

🔧 Utilities
(1.1K)
8
ClevCalc - Calculator
ClevCalc - Calculator
ClevCalc - Calculator
All-In-One Calculator
Free

A comprehensive all-in-one calculator app with features like scientific calculator, unit converter, currency converter, percentage calculator, and more for everyday use. It provides a wide range of calculation tools from basic arithmetic to complex conversions and financial calculations. Try it out now for convenient and efficient calculations!

📊 Productivity
(12K)
9
Vantage Calendar
Vantage Calendar
Vantage Calendar
Calendar & To-Do List
Free

A sleek and intuitive calendar app that seamlessly integrates tasks, events, and weather forecasts in one place. Stay organized and plan your days efficiently with ease.

📊 Productivity
(1.8K)
10
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

A calculator app with a built-in history feature that keeps track of your calculations without any ads. Calculate effortlessly and access your past computations instantly.

💰 Finance
(23K)
11
Calculator₊
Calculator₊
Calculator₊
Basic, Scientific, Plus Calc
Free

Try Calculator₊, the ultimate mathematics tool offering basic, scientific, and plus calculations. Ideal for homework, exams, and managing expenses, this app is like having a personal math tutor on your phone. Download now for easy and intuitive math solutions!

🔧 Utilities
(1.7M)
12
PocketLife Calendar
PocketLife Calendar
PocketLife Calendar
Calendar Organizer & Reminders
Free

PocketLife Calendar is a versatile calendar organizer that helps you stay organized and never miss an important event. Manage your schedule effectively with ease. Download now for effortless event planning!

📊 Productivity
(41K)
13
Calculator 3.0
Calculator 3.0
Calculator 3.0
Calculations Simplified
Free

A versatile and user-friendly calculator application for Apple devices, featuring themes, haptic feedback, tip calculation, unit conversion, and more. Simplify your calculations with Calculator 3.0 - available now for free on Apple Watch, iPhone, iPad, and iMessage!

🔧 Utilities
(3.5K)
14
TimeTree: Shared Calendar
TimeTree: Shared Calendar
TimeTree: Shared Calendar
Make a Shared Calendar
Free

A versatile shared calendar app with features for families, couples, and work schedules. Easily share calendars, set reminders, sync with other devices, and manage events with chats and to-do lists. Simplify time management and strengthen your connections with TimeTree! Visit the official website for more information: [TimeTree Official Website](https://timetreeapp.com/)

📊 Productivity
(86K)
15
Time Calculator - Work Hours
Time Calculator - Work Hours
Time Calculator - Work Hours
Date, Calendar & Salary Clock
Free

An app designed to streamline work hours calculations, helping users track their time with precision. Simplify your scheduling and stay organized effortlessly with Time Calculator⁺.

🔧 Utilities
(2.4K)
16
Moon Phases and Lunar Calendar
Moon Phases and Lunar Calendar
Moon Phases and Lunar Calendar
Full Moon Phase
Free

Track moon phases, moonrise, moonset times, and full moon dates globally with our comprehensive Moon Phases and Lunar Calendar app. Receive customizable notifications, explore interactive moon visuals, and access sunrise/sunset times and astrological insights. Stay informed and download now!

☀️ Weather
(36K)
17
Date and Time Calculator
Date and Time Calculator
Date and Time Calculator
by 山 钟
Free

Calculate time durations accurately with this tool, whether it's for financial planning or tracking important events. Get precise day-to-day calculations and plan ahead with ease.

🔧 Utilities
(9.1K)
18
Star Walk：Find Stars & Planets
Star Walk：Find Stars & Planets
Star Walk：Find Stars & Planets
Night Sky Guide - Star Map AR
Free

Discover and explore the night sky with an app that allows you to identify stars, constellations, and planets in real-time using your device's camera. Start your stargazing journey today!

📚 Education
(25K)
19
Calculator with History Tape
Calculator with History Tape
Calculator with History Tape
No Ads Calculator with Memory
Free

Access a user-friendly calculator app with a built-in archive of your calculations for easy reference. Enjoy an ad-free experience with customizable features for seamless calculations. Try it now for straightforward and efficient math operations.

📊 Productivity
(3.2K)
20
Panecal Scientific Calculator
Panecal Scientific Calculator
Panecal Scientific Calculator
For engineers and students
Free

A scientific calculator app designed for engineers and students, offering features like formula display, quick editing, memory functions, and various calculation modes. Improve accuracy and efficiency with easy formula navigation and editing tools. Explore advanced functions for different number systems and mathematical operations.

🔧 Utilities
(1.9K)

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