231+ iOS apps curated and reviewed
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.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $3.99 | 5.0★ (4) | No | No | May 2026 |
| 2 |  | Free | 4.7★ (120K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.7★ (60K) | No | No | Jul 2026 |
| 4 |  | Free | 4.7★ (15K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.6★ (59K) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.5★ (6.7K) | Yes | Yes | Jul 2026 |
| 7 |  | $1.99 | 4.8★ (1.1K) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.7★ (12K) | Yes | Yes | Jul 2026 |
This app visualizes time using a unique clock face with three hands representing daily, weekly, and yearly cycles. It explores alternative calendar systems like the 364-day and 360-day calendars, comparing them to the Gregorian calendar and illustrating their connection to seasons, zodiacs, and even playing cards.
This app combines a calendar, task manager, daily planner, and habit tracker. It helps users plan their day, build habits, boost productivity, and stay organized with seamless syncing across all Apple devices. Features include event creation, to-do list management, natural language input, and integration with popular meeting platforms.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
This app offers a customizable and fast calculator experience with a wide variety of themes. It includes scientific and standard modes, real-time results, and calculation history. Personalize your math with over 60 cute and colorful themes, including animated options.
This app offers a streamlined calendar experience with beautiful, intuitive views of your schedule. It unifies events and reminders, allows for quick natural language event entry, and provides contact history. It supports major calendar services and offers premium features through subscription.
This app acts as a smart personal assistant, consolidating your calendar, to-do lists, notes, and personal accounts into one unified platform. It streamlines daily management with features like voice commands, smart reminders, and email-to-task conversion, helping you stay organized and productive.
This app offers a calculator with an editable, line-by-line tape history, combining spreadsheet-like functionality with calculator simplicity. Easily correct mistakes, add comments, and share or print your calculations.
This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.
This app offers a visually engaging way to manage your schedule and to-do lists. It uses colorful cues, stickers, and "stacks" to help you understand your day at a glance. Integrated to-dos can be easily scheduled by dragging and dropping them onto dates.
This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.
This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.
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.
A free, redesigned calculator app offering a simpler, more intuitive experience across Apple devices. Features include customizable themes, advanced scientific functions, and unit conversion, all optimized for various screen sizes and interactions.
This app allows users to create and share calendars with family, friends, or colleagues. It facilitates event planning, communication, and organization through shared schedules, photo albums, and to-do lists. Stay connected and manage your time effectively with this collaborative scheduling tool.
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.
This app provides detailed information about moon phases, moon age, and celestial events. Get accurate moonrise and moonset times, notifications for upcoming events, and track the sun's position. It's designed for both casual users and dedicated skywatchers.
Calculate the exact number of days, hours, and seconds between any two dates. This tool also allows you to find the date before or after a specified period, making it useful for tracking deadlines, events, or financial products.
Explore the night sky with an interactive guide that identifies stars, planets, and constellations in real-time using augmented reality. Discover over 200,000 celestial bodies with detailed information and track astronomical events.
This app provides a straightforward calculator experience with a comprehensive history log of all your computations. Customize the keyboard, display, and history records to suit your needs. Easily add annotations and titles to past calculations for better organization.
This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.