245+ iOS apps curated and reviewed
Every iPhone needs a few good easy period calculator apps. We benchmark 245+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | Free | 4.5★ (7.5K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.7★ (61K) | No | No | Aug 2026 |
| 4 |  | Free | 4.8★ (93K) | No | No | Aug 2026 |
| 5 |  | Free | 4.9★ (409K) | Yes | No | Aug 2026 |
| 6 |  | Free | 5.0★ (3) | No | Yes | Aug 2026 |
| 7 |  | Free | 2.7★ (3) | No | No | May 2026 |
| 8 |  | Free | — | Yes | No | Jul 2026 |
This app offers a minimalist approach to tracking menstrual cycles. It provides essential tools for recording period dates, viewing historical data, and forecasting future cycles with intuitive visuals and simple one-click recording.
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.
Easily track your menstrual cycles and ovulation dates. Get timely reminders for your next period and identify your most fertile days for conception. This app also serves as a personal journal to log symptoms, mood changes, and other important events.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
A private and simple period tracker designed for teens. It prioritizes user privacy with offline functionality and no account requirements. Log your cycle easily and receive period predictions without any ads or subscriptions.
Easily track your menstrual cycle to identify fertile and safe periods. This tool helps users understand their ovulation days based on their last period date.
This medical app helps calculate Estimated Due Date (EDD) and Estimated Gestational Age (EGA). It offers two methods for calculation: using the Last Menstrual Period (LMP) or a provided EDD from Ultrasound (USS). The interface is designed for simplicity and speed.
This app helps users track their menstrual cycles, predict ovulation dates, and identify fertile windows. It also assists in calculating pregnancy test dates and expected labor dates, offering a comprehensive tool for family planning and fertility awareness.
This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.
This app helps you track your menstrual cycle, predict periods, and monitor ovulation. Log symptoms, moods, and intimate life for personalized insights and receive timely reminders. It offers customizable tracking for irregular cycles and provides fertility period notifications.
Track your menstrual cycle, predict ovulation, and log symptoms. Gain insights into your cycle's impact on mood and fertility. Offers a calendar view and home screen widget for easy access to your data.
This app helps teens and young individuals track their menstrual cycles with personalized predictions. It offers features like prep days and notifications to prepare for periods and includes an educational section for period-related questions. Your data is kept private and ad-free.
This app offers private and ad-free tracking for menstrual cycles and related health data. It allows users to log various details, set reminders, and gain insights into their bodies. An optional subscription provides cloud backup and cross-device syncing.
This utility app provides a clear and intuitive way to perform calculations, showing the entire process for better understanding. Users can personalize the interface by changing the color theme to match their preferences.
Easily track your menstrual cycle, predict your period and fertile windows, and manage birth control with discreet reminders. Get support and resources from health experts.
A straightforward and visually appealing calculator designed for ease of use on iPads and other iOS devices. It offers a large keypad to prevent errors and operates silently, making it ideal for quiet environments.