223+ iOS apps curated and reviewed
Every iPhone needs a few good easy period calculator apps. We benchmark 223+ 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 | 4.8★ (66K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.8★ (57K) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 4.9★ (404K) | Yes | No | Jul 2026 |
| 5 |  | Free | 4.7★ (60K) | No | No | Jul 2026 |
| 6 |  | Free | 4.8★ (53K) | Yes | Yes | Jul 2026 |
| 7 |  | Free | 4.9★ (33K) | Yes | Yes | Jul 2026 |
| 8 |  | Free | 4.8★ (72K) | No | 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 helps women track their menstrual cycles, predict ovulation, and monitor fertility to increase chances of conception. It offers personalized insights, expert guidance, and tools like BBT charting and ovulation test scanning. Users can also track pregnancy progress and connect with a supportive community.
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.
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 helps users track their menstrual cycle, including ovulation, fertility, and periods. It offers discreet reminders, detailed symptom logging, and personalized insights for better health management and planning. The app also includes features for birth control pill reminders and perimenopause tracking.
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.
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 app helps track menstrual cycles and predict ovulation. It offers detailed symptom tracking, temperature charting, and notes, with seamless integration into the Health app. Enjoy a user-friendly interface and customizable options for a personalized experience.
This health app helps you understand and track your menstrual cycle, ovulation, and pregnancy. It combines scientific data with ancient wisdom and astronomy to provide personalized insights and goal manifestation tools. Features include period predictions, symptom tracking, and lunar synchronicity.
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.
This app helps women track their menstrual cycles, predict fertile days, and monitor various health symptoms. It offers intelligent notifications, a community chat, and detailed tracking options for a comprehensive overview of reproductive health.
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 helps you discreetly track your menstrual cycle, daily moods, health symptoms, and more. It offers predictions for your period and fertile days, allowing for better planning. Customize your experience with various themes and icons, and connect with a community for support.
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 helps users track their menstrual cycles, predict fertile and ovulation days, and log symptoms and moods. It offers smart cycle calculations and a pregnancy mode to assist with conception or avoidance. Features include passcode protection, data backup, and elegant design.
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 helps women track their menstrual cycles, ovulation, and fertility. It offers personalized advice, pregnancy tracking, and reminders for birth control and medication. Your data is kept private and stored locally on your device.
Easily track ovulation, predict fertile days, and understand your cycle. Scan test strips with your phone's camera for automatic analysis. Get personalized insights and reminders to maximize your chances of conception.
This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.