Fertility Window Planner
Fertile window, kept private
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Fertility Window Planner is the calm, private way to find your fertile window while trying to conceive. No ads, no data selling, no AI chatbot — just your own signs, read by a transparent engine that shows its work.
LOG YOUR SIGNS IN SECONDS
Record basal body temperature (°F or °C), cervical mucus, ovulation-test results, flow, intercourse and symptoms — one tap per day, editable any time.
SEE YOUR FERTILE WINDOW
The Dawn Arc and a phase-tinted calendar show the six days you're most likely to conceive, your predicted ovulation day, and your next period — each with an honest confidence tier.
UNDERSTAND THE 'WHY'
A BBT chart draws your temperature curve with the computed coverline, the shaded fertile window and your mucus/OPK markers — so you can see exactly how each prediction was made. Nothing leaves your device to compute it.
BUILT FOR PRIVACY
Your data is yours: protected by per-account security, never sold, no third-party trackers. Export or delete everything any time.
PRO (optional subscription)
Unlock full cycle history, cross-cycle chart overlay, personal pattern insights and saved summaries. Core logging and your current fertile-window prediction are always free.
- Monthly $6.99 or Annual $39.99, with a 7-day free trial
- Payment is charged to your Apple ID at confirmation; auto-renews unless canceled at least 24 hours before the period ends; manage or cancel in Settings
Fertility Window Planner is for general wellness and body literacy. It is not medical advice, a diagnosis, or a contraceptive method, and never labels days 'safe' or 'unsafe.' Talk to a healthcare provider about conceiving or any concern.
Privacy Policy: https://preview.apppublishing.ai/legal/540/privacy
Terms of Use (EULA): https://preview.apppublishing.ai/legal/540/terms
• Your Pro subscription now stays put. A bug could switch Pro off for members who had already subscribed — that is fixed, and your subscription is restored automatically when the app opens.
• Plan prices now show in your own local currency.
• Saved cycle summaries open again — tap any summary in History to see the figures you captured.
• Manage Subscription is now in Settings, and Restore Purchases is always available.
• Fixed a rare start-up problem that could leave the app on a blank screen.
The developer, ASHOK KUMAR, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ASHOK KUMAR
- Size
- 38.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Fertility Window Planner $39.99
- Fertility Planner Pro Annual $39.99
- Fertility Planner Pro Monthly $6.99
- Copyright
- © 2026 AK Digital Group LLC