Table 1.
Description of the included apps.
| App name | Numbers of downloads | Version | Star rating | Last updated |
|---|---|---|---|---|
| Nabta Cycle | 100+ | 1.2.0 | 5 | 29 March 2019 |
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| Nyra-Period, Fertility & Ovulation Tracker App | 100,000+ | 3.1 | 3.6 | 10 August 2019 |
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| Maya-Period, Fertility, Ovulation & Pregnancy | 5,000,000+ | 3.6.7.7 | 4.8 | 3 September 2019 |
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| Period Tracker Flo, Ovulation Calendar & Pregnancy | 10,000,000+ | 4.30.0 | 4.8 | 1 September 2019 |
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| Ovia Fertility: Ovulation & Period Tracker | 1,000,000+ | Varies with device | 4.7 | 13 August 2019 |
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| Femometer-Fertility Tracker | 100,000+ | 3.9.0 (3207) | 4.7 | 3 September 2019 |
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| Fertility, Ovulation App & Pregnancy Tracker | 500,000+ | 3.2 | 4.2 | 28 February 2019 |
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| Ladytimer Ovulation & Period Calendar | 5,000,000+ | 4.5.9 | 4.8 | 5 June 2019 |
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| Period Tracker & Ovulation Calendar by PinkBird | 500,000+ | 1.16.0 | 4.8 | 22 August 2019 |
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| Premom Ovulation Calculator | 100,000+ | 1.6.3.2 | 4.3 | 27 August 2019 |
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| My Calendar-Period Tracker | 100,000,000+ | Varies with device | 4.9 | 12 August 2019 |
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| Ovulation Calculator Fertility | 100,000+ | 1.4.2 | 4.5 | 3 April 2017 |
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| Period Tracker and Women Diary | 500,000+ | 6.0.1 | 4.7 | 13September 2018 |
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| Magic Girl Teen Period Tracker | 100,000+ | 1.0.8 | 4.3 | 25 August 2018 |
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| Glow: Fertility Calculator and Ovulation Tracker | 1,000,000+ | 7.8.1 | 4.7 | 29 August 2019 |
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| PRENSES KADIN—Period Calendar Ovulation Tracker | 10,000+ | 1.0 | 3.9 | 13 October 2017 |
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| Period Tracker Cherry-Menstrual Cycle Tracker | 50,000+ | 2.7.7 | 4.3 | 19 Nov2018 |
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| Spot On Period, Birth Control, & Cycle Tracker | 500,000+ | 2.9.1 | 4.3 | 15 April 2019 |
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| My Cycles Period and Ovulation | 1,000,000+ | Varies with device | 4.3 | 1 April 2019 |
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| FEMM Health Period and Ovulation Tracker | 100,000+ | 1.1.882 | 4.0 | 31 May 2019 |
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| Period Tracker Mia Fem: Ovulation Calculator | 1,000,000+ | 1.40 | 4.8 | 28 August 2019 |
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| Pepapp-Period, PMS, Ovulation Tracker | 1,000,000+ | 3.4.1 | 4.4 | 31 July 2019 |
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| Simple Cycle | 1,000+ | 1.3 | 4.6 | 14 August 2018 |
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| Pslove Period Tracker: PMS & Ovulation Calendar | 50,000+ | 1.11.0 | 4.2 | 22 August 2019 |
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| Ovy-NFP, Period, Ovulation, bbt, Menstruation | 50,000+ | 2.0.4 | 3.7 | 30 July 2019 |
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| Period Diary | 100,000+ | Varies with device | 4.4 | 4 September 2019 |
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| Period Tracker-Period Calendar Ovulation Tracker | 100,000,000+ | Varies with device | 4.9 | 12 August 2019 |
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| Pslove Period Tracker: PMS & Ovulation Calendar | 50,000+ | 1.11.0 | 4.2 | 22 August 2019 |
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| Eve Period Tracker-Love, Sex & Relationships App | 1,000,000+ | 2.14.6 | 4.6 | 5 September 2019 |
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| Once -A Special Period Tracker | 1,000,000+ | 4.9.2 | 4.5 | 7 July 2019 |
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| MyPeriod Tracker | 1,000+ | 1.2.2 | No enough rating | 30 March 2016 |
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| My Days-Ovulation Calendar & Period Tracker ™ | 5,000,000+ | 3.0.5 | 4.0 | 4 September 2019 |
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| Period Tracker | 10,000,000+ | Varies with device | 4.7 | 31 August 2019 |
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| Ovulation-Fertility Tracker Eveline Cycle Calendar | 5,000+ | 2.0.0 | 3.7 | 30 July 2019 |
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| Fertility Friend Ovulation App | 1,000,000+ | 11.11 | 4.7 | 28 August 2019 |
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| Period Tracker Calendar & Ovulation Calculator | 50,000+ | 1.2 | 4.3 | 6 February 2019 |
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| Clue Period Tracker-Ovulation and Cycle Calendar | 10,000,000+ | 5.20.1 | 4.8 | 3 September 2019 |
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| My Menstrual Diary | 1,000,000+ | 3.3 | 4.3 | 4 May 2016 |
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| Natural Cycles-Birth Control App | 500,000+ | 3.2.12 | 4.5 | 16 August 2019 |
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| WomanLog Period Tracker & Calendar | 5,000,000+ | 5.7.8 | 4.5 | 4 September 2019 |
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| Woman Log & Ovulation Tracker | 10,000+ | 2.0.1 | 4.1 | 20 December 2016 |
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| CycleBeads Period & Ovulation | 500,000+ | 2.30 | 4.6 | 4 December 2018 |
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| Menstruation Fertility Pro Lte | 500,000+ | 3.0.9 | 4.1 | 3 June 2019 |
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| Kindara Fertility & Ovulation | 100,000+ | 3.9.0 | 3.2 | 31 May 2019 |
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| Dot Period Tracker & Fertility Tracker | 100,000+ | 1.195 | 4.3 | 27 August 2019 |
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| Flogirl Period | 5,000+ | 1.2.0 | 4.5 | 8 August 2019 |
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| DaysyView | 10,000+ | 2.3.0 | 1.8 | 3 September 2019 |
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| My Fertility Charts | 100,000+ | 3.1.0 | 3.0 | 14 July 2019 |
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| OvaGraph—Official TCOYF App | 10,000+ | 3.1.8 | 4.5 | 23 August 2019 |