Tempdrop

In-app purchases
3.4
559 reviews
50K+
Downloads
Content rating
Everyone
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About this app

Tempdrop brings the full fertility tracking solution to your smartphone. Whether you are looking to increase your chances of conceiving, or are practicing fertility awareness methods, Tempdrop is tailored to you.

Tempdrop’s wearable sensor and accompanying charting app brings the full fertility charting solution to your smartphone. Using the latest scientific knowledge to bring you an accurate method of cycle tracking and identification of your fertile window. Tempdrop’s smart algorithm learns your unique nightly and monthly temperature patterns, filtering out disturbances for accurate results. Simply wear the sensor on your upper arm when you sleep and sync it to the app whenever it's convenient.
Tempdrop provides continuous monitoring and filters out waking times to give you the true nightly sleeping temperature.

Tempdrop offers a free basic app version with the possibility of upgrading to premium in order to benefit from advanced features including fertility insights, sleep quality data, a calendar view and more.
Updated on
Jul 29, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Health and fitness and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.4
556 reviews
K N
May 29, 2024
Edit: after using for over a year, I can say this app is very buggy and needs to work better for the price. Lots of sync issues. Old review: Good job tracking temps, but needs internet to sync which is annoying. I can't use this when I'm out of service for days at a time. It can sync two days at once but I'm not sure how many days it can keep. Otherwise, I trust the temps it gives me to be the lowest of my temps throughout the night.
6 people found this review helpful
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Tempdrop Inc
February 6, 2024
Thanks for your feedback. The sensor can store up to 24hrs of data (3 x 8 hr sessions or 4x 6hr sessions) between syncs. The team is looking into options to expand this storage in upcoming versions.
Mari Macias
August 21, 2024
I love my temdrop! It's been great for tracking my cycle, but the app kinda sucks. It's been super glitchy. Almost every day that I open it to sync my device, it gets stuck on the opening page for hours. I usually have to delete and re-instal the app or shut my phone down and restarted or it won't open. The device itself is amazing. The app could use work.
3 people found this review helpful
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Tempdrop Inc
September 6, 2024
We're sorry to hear about your experience with the app. Please reach out to our team via the app (or support@temp-drop.com) so we can assist you directly. We're committed to resolving any issues you may encounter. Thank you for your feedback and we hope you might update your review after being assisted.
Nathalia Barnes
December 13, 2021
This is a terrible app. It makes you pay for everything. I use it to get my temperature and that's it. If you want a good charting app I'd suggest uploading your information to OvaGraph. It's free and interprets your results for you while still being free! Tempdrop app will only interpret the results for a monthly fee. And they don't let you see any insights like what your usual symptoms are, your average lengths, ect.
9 people found this review helpful
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Tempdrop Inc
December 13, 2021
Hi Nathalia. Thanks for your feedback. At Tempdrop, we pride ourselves on giving users the choice to use the Tempdrop sensor to retrieve temps and use their data in 3rd party charting apps or the inbuilt charting app at no extra cost. Extra insights/interpretation are optional features ❤️

What’s new

Free Calendar View: Plan ahead! See predictions for your upcoming CD1s (regular cycles only), now free for all users.
New Guided Tutorial: Get started easily with our new step-by-step app walkthrough.
Bug Fixes: Enjoy a smoother, more reliable app experience.