Fertility Tracking Apps
There are so many apps available to help with your practice of NFP. Be informed when selecting what will work for you to support this lifestyle choice.
Developer: NeoFetility App Ltd, Dublin, Ireland
Consumer ratings:
iPhone: 3.1 (n=9) Android: 3.6 (n=10)
Price: free trial period then $10/year
Connectivity to Thermometer: Tempdrop
What does it track? Cervical mucus, BBT; user can select to follow recording observations from STM method or Neo Fertility observations (cervical mucus only)
Does it interpret the fertile window? Yes, definition of the fertile window each cycle is dependent on user’s strength of intention to avoid pregnancy; the more serious users will be switched to STM method. If charting for diagnosis of underlying medical issue, app collects information via Neo Fertility method (derived from the Creighton model and used by infertility specialists).
Developer: Biowink GmbH (Germany)
Consumer ratings:
iPhone: 4.8 Android: 4.8
Price: Free with in-app purchases
Connectivity to Thermometer: no
What does it track? Period length, BBT, cervical mucus, ovulation tests
Does it interpret the fertile window? No. Will predict start of next menstruation.
Developer: Clocking Edge LLC & CCL
Consumer ratings:
iPhone: 3.2 (n=15) Android: 3.7 (n=74)
Price: free trial period then $35/year
Connectivity to Thermometer:
What does it track? Fertility signs (BBT, cervical mucus, others as optional) used in STM method of NFP as taught by Couple to Couple League. Special settings for postpartum and premenopause transition times are also available.
Does it interpret the fertile window? Yes. App follows definition of fertile days used in STM method (a well-studied, highly effective NFP method) and uses recording system taught by CCL.
Developer: Cycle Technologies, Washington DC
Consumer ratings:
iPhone: 4.8 Android: 4.4
Price:
Connectivity to Thermometer:
What does it track? Cycle lengths; app indicates if you are fertile or infertile each day
Does it interpret the fertile window? Yes, if woman has cycles 20-40 days long and cycle-to-cycle variation is consistently less than 10 days, app will calculate probability of pregnancy for each day. Note: Effectiveness of method to postpone pregnancy is dependent on condom use on days defined as fertile by app. There is no published data showing effectiveness in postponing pregnancy when used without contraception on app-defined fertile days
Developer: FEMM Health Foundation, NY, NY
Consumer ratings:
iPhone: 4.6 Android: 4.4
Price: free
Connectivity to Thermometer:
What does it track? Cervical mucus. Users are recommended to take a FEMM class to learn to use the method for family planning purposes.
Does it interpret the fertile window? No. Data are collected into a readable chart so users who have taken a FEMM class can interpret it to define their fertile window in each cycle.
Developer:
Consumer ratings:
iPhone: 4.8 Android: 4.5
Price: Free with in-app purchases. Premium is $45/yr. provides interpretation to predict ovulation day
Connectivity to Thermometer: no
What does it track? Period length and BBT, cervical mucus, LH data from OPK test strips. Entered data used to define ovulation day.
Does it interpret the fertile window? No. Interprets when you ovulate using one of 4 user selected approaches; 1) Advanced Detector (default)- compares your current cycle to your history and that of other users to estimate ovulation day, ) Research Detector- integrates new patterns identified from FF’s ongoing database, 3) FAM detector- utilizes traditional “3 over 6” BBT temp shift to predict ovulation( assumed the day before first day of temp rise), 4) OPK/monitor detector- uses LH surge from urinary LH test strips to define ovulation day.
Developer: FLO Health, Inc.
Consumer ratings:
iPhone: 4.9 Android: 4.9
Price: Free with in-app purchases
Connectivity to Thermometer: no
What does it track? Period length, user-entered symptoms
Does it interpret the fertile window? No.
Developer: GLOW, Inc.
Consumer ratings:
iPhone: 4.7 Android: 4.6
Price: Free; premium service $47.99/yr provides chat, support, chart comparisons, etc.
Connectivity to Thermometer: no
What does it track? Period length (predicts ovulation from this); allows BBT and other symptoms to be recorded
Does it interpret the fertile window? No.
Developer: Priya-Temp Inc., Boulder, CO
Consumer ratings:
iPhone: 4.6 Android: 3.9
Price: free, $40/year subscription for full features
Connectivity to Thermometer: Wink (oral BBT), Priya (vaginal continuous temp recorder)
What does it track? BBT, cervical mucus
Does it interpret the fertile window? Yes, uses an STM-type method when both BBT and mucus observations are entered. Specifics on definition of beginning and end of FW are not disclosed. Thereis no clinical data on effectiveness to postpone using Kindara-specific rules. Utility of Priya device claiming earlier detection of fertile time for TTC is unproven in clinical trials of time to pregnancy.
Developer: Natural Cycles, Stockholm Sweden
Consumer ratings:
iPhone: 4.8 Android: 4.6
Price: $90/year or $10/month
Connectivity to Thermometer:
What does it track? BBT, cycle length; app indicates if you are fertile or infertile each day
Does it interpret the fertile window? Possibly - a proprietary algorithm defines a fertile window based on temperature patterns and cycle history. Note: Effectiveness of NC to postpone pregnancy is dependent on condom use on days defined as fertile by app. There is no published data showing effectiveness in postponing pregnancy when used without contraception on app-defined fertile days.
Developer: Ovia Health, Boston MA
Consumer ratings:
iPhone: 4.8 Android: 4.8
Price:
Connectivity to Thermometer: no
What does it track? Predicts your day of ovulation and provides a daily “fertility score” indicating daily likelihood of conception
Does it interpret the fertile window? No. Predicted ovulation is based on proprietary algorithm that employs calendar calculations and user provided symptoms and signs. Intended to help women get pregnant