Flo Ovulation & Period Tracker for Cycle Tracking
Flo Ovulation & Period Tracker is a free health and fitness app by Flo Health Inc. that lets you track periods, predict ovulation, and monitor pregnancy.

Flo Ovulation & Period Tracker has been downloaded over 100 million times and holds a 4.72 rating from more than 5.1 million reviews. The app requires Android 10 or higher, includes in-app purchases, and does not show ads. It is designed for anyone tracking menstrual cycles, trying to conceive, or exploring perimenopause.
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Flo Ovulation & Period Tracker is a health and fitness app by Flo Health Inc. that helps users track their menstrual cycle, ovulation, pregnancy, and perimenopause. It is designed to support the entire female health journey, from logging periods and predicting fertile windows to providing week-by-week pregnancy guidance and perimenopause symptom tracking. With over 70 trackable symptoms and moods, the app aims to give personalized insights based on the data you log. It also offers educational content and community features, all wrapped in a privacy-focused design. The app is free to download, with core tools available at no cost, and offers a Premium subscription for additional features like tailored insights and a 24/7 virtual health assistant. The latest update is a technical improvement focused on enhancing app performance and stability. Flo emphasizes data security with dual ISO 27001 and ISO 27701 certifications, and includes an Anonymous Mode to let you use the tracker without linking personal identifiers. Whether your cycles are regular or irregular, the app provides helpful predictions and summaries that you can share with your doctor. It also supports Wear OS 3 with watch complications and tiles for quick cycle insights. While Flo is a comprehensive tool, it is important to note that it does not provide medical advice, diagnosis, or treatment, and is not intended as a method of birth control or conception aid.
Key features
- Track your period, ovulation, and fertile window with predictions based on logged data
- Log over 70 symptoms and moods to receive personalized cycle insights
- Anonymous Mode to use the app without linking your name, email, or personal identifiers
- Pregnancy tracking with weekly updates and visuals as your baby develops
- Perimenopause Score and Menopause Timeline to follow symptom changes
- Basal body temperature (BBT) tracking to support fertility awareness
- Secret Chats to connect with members and share tips and experiences
- Flo for Partners to share cycle predictions or pregnancy progress
How to install
- Tap the download button on this page to get the APK file.
- When Android asks, allow your browser or file manager to install apps by enabling the 'Install unknown apps' setting.
- Open the downloaded APK file from your notifications or file manager.
- Tap Install and wait for the installation to complete.
- Open the app from your app drawer or the 'Open' button. The file size is not specified, and the minimum Android version required is Android 10.
Pros
- Comprehensive tracking for periods, ovulation, pregnancy, and perimenopause
- High level of data protection with ISO 27001 and ISO 27701 certifications
- Anonymous Mode available for privacy-conscious users
- Wear OS support for quick access on your watch
- Free to download with core features included
Cons
- In-app purchases required for Premium features
- Not a medical device and should not replace professional advice
- Symptom Checker not available in the UK or EU
- Requires Android 10 or higher
What's New
The latest update for Flo Ovulation & Period Tracker, released on October 7, 2026, focuses on technical improvements to enhance app performance and overall stability. This version fine-tunes the app's functionality to deliver a smoother, more reliable experience for tracking periods, ovulation, pregnancy, and perimenopause symptoms. Update now to enjoy the refined performance and continue your health journey with confidence.
This app is ideal for women who want to track their menstrual cycle for personal awareness, those who are trying to conceive and need ovulation predictions and BBT tracking, and individuals approaching or experiencing perimenopause who want to monitor symptom changes.
To get the most accurate predictions, log your period start and end dates consistently, and add symptoms and moods daily—this helps the app learn your unique cycle patterns over time.
Permissions
Frequently Asked Questions
Is Flo free to download and use?
Yes, Flo is free to download and includes all the core tools you need to plan and understand your cycle. The app also offers an optional paid Premium subscription with additional features.
What Android version do I need to install Flo?
Flo requires Android version 10 or higher to run.
Does Flo require an account to use?
Flo offers an Anonymous Mode that lets you use the period tracker without linking your name, email, or personal identifiers. However, some features like Secret Chats may require connecting with other members.
What permissions does Flo request?
Flo requests access to your photos, media, and files, as well as storage and Wi-Fi connection information. These permissions are used to support app functionality.
How do I update Flo to the latest version?
To update Flo, simply download the newest version from this page and install it over your current installation. The latest update is a technical improvement that enhances app performance.
Does Flo contain ads?
No, Flo does not contain ads. It is ad-free, though it does offer in-app purchases for the Premium subscription.
Flo is a robust and feature-rich tracker that covers a wide range of female health needs, from period tracking to pregnancy and perimenopause. Its strong emphasis on privacy and data security is a significant plus, and the free version offers solid core functionality. However, some advanced features require a subscription, and it is not a substitute for professional medical care. Overall, it is a reliable choice for anyone seeking a comprehensive cycle companion.
Updated: 24.10.2026
- Requires Android
- 10
- Updated
- 07.10.2026
- Installs
- 100M+
- Rating
- ★ 4.72 (5 139 646)
- Category
- Health & Fitness
- Developer
- Flo Health Inc.
- Content rating
- Everyone
- Package
- org.iggymedia.periodtracker
- Free
- ✓ · In-app purchases