Ranking of Fertility Apps Based on Mean Accuracy and Authority Scores*
| Ranking | Name of App | FABM | Platforms Available | Accuracy and Authority Score (Mean) | Total Score (Mean) |
|---|---|---|---|---|---|
| Apps that predict fertile days (n = 30) | |||||
| 1 | Ovulation Mentor† | Ovulation | Web | 4.7 | 4.4 |
| 2 | Sympto.org† | Symptothermal method | iOS/Android/Web | 4.5 | 4.1 |
| 3 | iCycleBeads† | Standard days method | iOS/Android | 4.3 | 3.9 |
| 4 | LilyPro† | Symptothermal method | iOS | 4.3 | 3.8 |
| 5 | Lady Cycle† | Symptothermal method | Android | 4.3 | 4.1 |
| 6 | mfNFP.net† | Symptothermal method | iOS/Android/Web | 4.0 | 4.0 |
| 7 | MyFertilityCharts.com | Symptothermal method | iOS/Android/Web | 3.5 | 3.7 |
| 8 | CycleProGo | Symptothermal method | iOS/Android/Web | 3.4 | 3.9 |
| 9 | 2Day Method | Two day | iOS | 3.3 | 3.2 |
| 10 | Ova Ova | Symptothermal method | Web | 3.3 | 3.3 |
| 11 | OvaGraph | Symptothermal method | iOS/Android/Web | 3.1 | 3.6 |
| 12 | OvuView | Symptothermal method | Android | 2.7 | 2.8 |
| 13 | FemCal | Symptothermal method | iOS | 2.5 | 2.2 |
| 14 | Ovatemp | Symptothermal method | iOS | 2.3 | 3.2 |
| 15 | Natural Cycles | Proprietary | iOS/Android | 2.3 | 3.1 |
| 16 | Cyclendar | Symptothermal method | Web | 2.1 | 2.2 |
| 17 | My Fertility MD | Ovulation | iOS | 2.1 | 3.2 |
| 18 | Menstrual Cycle Woman Log | Rhythm‡ | Android | 2.1 | 1.9 |
| 19 | Menstruation & Ovulation | Rhythm | iOS | 2.1 | 1.2 |
| 20 | Cycles | Standard days method | iOS | 1.7 | 2.2 |
| 21 | iCyclus | Rhythm | iOS | 1.3 | 1.4 |
| 22 | Period Log | Rhythm | iOS | 1.1 | 1.8 |
| 23 | Period Pace | Rhythm | iOS | 1.0 | 1.7 |
| 24 | Period & Ovulation Calendar | Rhythm | iOS | 1.0 | 1.5 |
| 25 | Pink Pad Pro | Rhythm | iOS/Android | 1.0 | 2.3 |
| 26 | Fertility Calendar | Rhythm | Android | 1.0 | 1.4 |
| 27 | Fertility Clock | Rhythm | iOS | 0.7 | 1.4 |
| 28 | Woman Calendar | Rhythm | iOS | 0.7 | 1.2 |
| 29 | Fertility & Ovulation | Rhythm | iOS | 0.5 | 1.6 |
| Apps that did not predict fertile days (n = 10) | |||||
| 1 | NFP Charting | Ovulation | iOS/Android/Web | 4.3 | 4.5 |
| 2 | Symptopro | Ovulation | Web | 4.3 | 3.7 |
| 3 | Fertility Pinpoint | Symptothermal method | iOS/Android | 4.2 | 4.2 |
| 4 | Kindara | Symptothermal method | Web | 4.0 | 4.1 |
| 5 | Groove Fertility Pro | Symptothermal method | iOS | 2.7 | 3.2 |
| 6 | FEMM | Symptohormonal method | iOS | 2.7 | 3.2 |
| 7 | NFP Project Caruso | Rhythm | Android | 2.7 | 2.1 |
| 8 | Charting App | Ovulation | Android | 2.0 | 2.3 |
| 9 | Lady Timer | Proprietary | iOS | 1.3 | 2.5 |
| 10 | Knowhen | Ovulation | Android | 1.0 | 2.2 |
↵* The data is representative of the apps at the time they were reviewed (Spring of 2015). Current versions of the app may be different.
↵† This app had either a perfect score on accuracy (app-defined fertile days = evidence-based fertile days) or no false negatives (days of fertility classified as infertile).
↵‡ Rhythm is not an evidence-based FABM.
Glow was originally included in the study because it did not appear to meet the exclusion criteria. However, the developers clarified that the app is not a substitute for an FABM. Therefore, it should not be used by women attempting to avoid pregnancy through the use of an FABM. FABM, fertility awareness-based method.