Natural Cycles - Birth Control

Why it was chosen

Natural Cycles is worth considering because it turns daily basal body temperature readings into a fertility-awareness method for contraception or pregnancy planning. That gives people who want to avoid hormones a structured alternative to relying on cycle averages or guesswork. The choice makes sense only for users willing to measure consistently, follow the app’s guidance, and understand that correct use matters.

What the app does

Natural Cycles - Birth Control uses a personalized algorithm to estimate fertile and non-fertile days from temperature data. It marks the current fertility status in the app, helping users decide when additional protection is needed. The same tracking approach can be used in reverse by people trying to identify likely fertile periods when planning a pregnancy.

• Records and interprets basal body temperature.
• Provides daily fertility guidance based on personal cycle data.
• Supports a hormone-free contraception approach.
• Can connect with compatible wearables, including Oura Ring and some Apple Watch models, for temperature data.

Who it suits

This medical app is aimed at adults looking for data-based fertility tracking rather than a general period calendar. It may suit people moving away from hormonal contraception, as well as those who want one app for both avoiding and planning pregnancy. It is less suitable for anyone who cannot take regular readings or who wants contraception that requires little daily attention.

What the numbers indicate

Natural Cycles AG is the listed developer. The app has a 4.5450644 rating from 22,971 reviews and more than 1,000,000 installs, giving it a substantial user base in the Medical category. It is also described as the first FDA-cleared contraceptive app, but users should still read its instructions carefully and consider professional medical advice when choosing a birth-control method.