Tempdrop

In-app purchases
594 reviews
Content rating
Everyone
50K+
Downloads
Content rating
Everyone
In-App Purchases
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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.
All-in-one fertility monitor
Updated on
Sep 23, 2026

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

591 reviews
Sarah Wollesen
September 6, 2026
Dark mode, please! Also, I have to keep the app open while the temperatures are uploading or the sync fails and I have to start all over again, which is really annoying and tedious, and this is a relatively recent development (maybe within the past year or two). It definitely used to upload just fine even when I didn't have the app open.
Did you find this helpful?
Tempdrop Inc
September 6, 2026
Thanks for the detailed feedback! Dark mode is on our radar. We’re also sorry about the sync issue, having to keep the app open and restart uploads is frustrating. Please reach out to our support team (support@temp-drop.com) so we can look into this with you. We appreciate your patience!
Kaialani
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
Did you find this helpful?
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.
Sofia McMaude
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.
5 people found this review helpful
Did you find this helpful?
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.