Do you have to pay a subscription for the app?

Hi friend, The femometer app is free download and free functions are enough to use. Here are free functions：Record Temperature/Record Symptoms/Draw&Check BBT Curve/Check Calendar/Read Articles/ntelligent Recognition of Ovulation Test Strips/Privacy Security Password Lock. Here are £9.9/month functions：current cycle interpretation/previous cycle interpretation/conception guidance/conception prediction/sex scoring/bbt measurement scoring/cm recording scoring/LH test result scoring/similar curves/curves overlay/symptom statistics/cycle statistics/cycle distribution/cycle summany/export data. Please fell free to contact us via amazon or email to support@bongmi.com Femometer team

How do you switch from •C to •F?

Hi, Please follow this way to change the units: 1.turn off the thermometer 2. hold the button for about 3-5 seconds, a beep will be sound, and the screen will flash with"lo" and the unit is changes.3.you can test your temperature now.

I can’t download the app? says it’s not available in the u.k.? what other apps can i use?

I’m in the UK and was able to download the Femometer app onto my iPhone 8 with no issues. Have you tried again recently? I did notice that a couple of other sponsored apps appeared before the Femometer app on the search results, and nearly downloaded the wrong one at first. It’s called Femometer and the logo is pink with the same symbol on it that’s on the thermometer. It also has ‘EU’ in the lower right corner, in blue.

Do you pay £8.99 for this a month?

No, there was a one-off fee to purchase the thermometer, and there is a free app you can download to record the temperatures. I believe you can pay an additional fee to access certain features in the app, but it provides plenty of information for free. Or you can just use the thermometer as it is and not use the app at all.

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🌸 Track, Chart, and Conquer Your Cycle with Confidence!

SAFE FOR ALL AGES - Waterproof, easy-to-clean design crafted from premium materials, perfect for the whole family.
PINPOINT YOUR PEAK - Clinically tested accuracy to track ovulation with 1/100th degree precision.
RELIABLE SUPPORT ALWAYS - Enjoy peace of mind with a 1-year quality warranty and responsive customer service.
SMART CHARTING ZERO GUESSWORK - Seamlessly sync your manual entries to the Femometer app for instant BBT graphing and ovulation insights.
PRIVACY FIRST FERTILITY TRACKING - Your sensitive data is encrypted and safely stored in the cloud—only you have access.

This FDA-approved Digital Basal Body Thermometer offers ultra-precise 0.01°C accuracy to help you monitor fertility and ovulation. Designed for natural family planning, it pairs with the Femometer app to automatically chart your basal body temperature and pinpoint ovulation days while ensuring your data privacy with secure cloud storage. Its waterproof, safe design suits all ages, backed by a 1-year warranty and dedicated customer support.

Reviews

A**C

What it says on the tin

Works great

11.07.2025

V**0

The best thing I used to NOT get pregnant!

I got this thermometer, because my partner had had a vasectomy after us having a devastating loss. we decided we didn’t want any more children, so he went for a vasectomy and I purchased this so it made peace of mind for me knowing to abstain when I was ovulating. It worked a treat! Knowing how my body works is so empowering, and I highly recommend this to anybody who is trying to get pregnant or not! It’s also very handy because I know exactly when I’m due on my period too, and it has never been wrong!

4.01.2024

B**R

Secret weapon for those with PCOS

Having PCOS makes tracking your cycle so difficult. Testing BBT first thing every morning (before even sitting up) has become such a good way to make sense of things. Doing this as well as testing LH has really helped me understand my cycle. Great quality thermometer, good battery life too.

10.06.2024

I**N

Really simple to use and great app!!

Why did you choose this product over others?:Really simple to use and has an app that is really easy to use. There's an option to pay a subscription fee to upgrade the app to a better version but I've just been using the free version and it seems alright so far! Would definitely recommend a is a much cheaper option that others found.

20.06.2025

D**E

Not reliable

Seems very unreliable. I take my temp 3 times in a row and it's very different (up to .13) every time. Considering it's meant to be highly accurate to track fertility, it's not very udeful

21.09.2025

A**R

Great

Great exactly what I wanted

13.01.2025

S**G

Good

I had to correct my review. I have to say that the app is very much into detail and so it’s not the easiest. The free version is good but it took me a while to understand how to use it free.My advice is to pop a step by step on how to use it free as its actually great and the paid version looks amazingSo I’m editing my review as it was me and not the app!

6.05.2023

J**A

Digital Basal Body Thermometer

I was so exciting to receive this and to use the app, but unfortunately, I’m so disappointed the app is expensive and the thermometer only showing 35.50 as my body temperature every single time and I know this is wrong 😑 and it takes around 4 minutes to show the temperature 🤒 which is wrong anyway. I’m so disappointed. I really wanted to try and review the femometer ring but the price put me off . If this one is not correct how can be the ring. 😔

22.02.2025

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TrustScore 4.5 | 7,300+ reviews

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Manufacturer	Joytech Healthcare Co.,Ltd
Part number	3032
Item Weight	50 g
Package Dimensions	16.7 x 6.2 x 2 cm; 50 g
Batteries	1 LR44 batteries required. (included)
Item model number	778942363209
Colour	Pink
Power source type	Battery Powered
Display style	LCD
Specification met	FDA
Special Features	LCD display
Included components	Digital basal body thermometer, Femometer app
Batteries included?	Yes
Batteries Required?	No
Battery Cell Type	Alkaline

Digital Basal Body Thermometer Fertility Monitor Record BBT Manually, Draw BBT Chart Pinpoint Ovulation Day, High Accuracy Perfect Companion for Ovulation (Pink)

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