If you already know NFP Charting, this is the deeper bench. 203+ nfp charting apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.
Track your Natural Family Planning (NFP) charts online using the Billings Ovulation Method. This app allows you to enter data, share charts with your teacher, and view current and previous cycles. It is designed for users already trained in the Billings Ovulation Method.
This app helps women track their hormonal health and fertility using body temperature data. It offers hormone-free contraception, pregnancy planning, and insights into various cycle stages. It adapts to individual cycles, even irregular ones, providing daily fertility status.
What We Love
π Teaches users about their cycle
π Helps users understand their body
π Provides a natural contraceptive option
π Accurate in predicting ovulation and periods
Room to Improve
π Inconsistent in predicting ovulation and periods for some users
π Thermometer issues (loud, hard to read, no Bluetooth connectivity)
π Difficult to use for users with irregular cycles or disrupted sleep schedules