Period Tracker vs NapSip
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Period Tracker
Track your menstrual cycle, predict ovulation, and log symptoms. Gain insights into your cycle's impact on mood and fertility. Offers a calendar view and home screen widget for easy access to your data.
- Period and ovulation prediction
- Symptom logging
- Calendar view
- Home screen widget
- Fertility tracking
- Cycle insights
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Features • View your current period dates, ovulation and fertile days • Forecast your ovulation and upcoming period with smart predictions • Review past periods to get a better understanding of your cycle • Calendar view shows monthly data • View health data in beautiful charts • Fast logging at any time of the day or night • Take daily notes of menstrual symptoms including flow, body aches, mood, etc • Add a widget to home screen to see the current cycle • Increase your chances of pregnancy and improve fertility • Learn how your cycle affects your mood Review from users "Great app, accurate menstruation and safe period predictions!" "Easy to keep track of periods, no clutter of promotional information, meets my requirements." "Useful for those who are preparing for pregnancy to keep track of various cycles and symptoms." Tips Health data is for informational purposes only and is not intended for self-diagnosis or other medical purposes. Period data is only stored in phone storage, we never collect your personal data or share your information with third parties. Terms of Service: https://www.deebex.com/period/terms.html Privacy Policy: https://www.deebex.com/period/privacy.html
NapSip
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Twins. Triplets. More kids than hands. NapSip is the only tracking app built from the ground up for multiples — not retrofitted. Both parents see in real time who's sleeping, when the last feed was, and how much — on every device, no detours. WHAT YOU TRACK • Sleep — start/stop with a live timer. See at a glance who's asleep and for how long. • Feeding — bottle (ml slider) or breast (left/right with duration). Fast, even half-asleep. • Diapers — wet, dirty, or both, logged in seconds. • Solids — gram slider for purees and first meals, optional toggle. • Growth — weight and height over time, shown as a curve. • Handoff notes — quick notes for shift changes between parents. FOR BOTH PARENTS Create a family and share the invite code with your partner. From that moment on, you're in sync — what one logs, the other sees within a second. No chaos. No duplicates. No "did you already feed them?" (Due to platform limits, live sync doesn't reach the widgets instantly.) SLEEP PREDICTION NapSip learns your children's sleep patterns and shows when the next nap is likely coming — based on real data from the last 14 days, adjusted for age. Still: there's no point in forcing yourselves to follow a recommendation. Your child's real sleep cues always come first — the prediction is a hint, not a plan. HISTORY & INSIGHTS • Day timeline: sleep and feed blocks as a visual 24-hour view — per child. • Week view: compare sleep duration, feed amounts, and diaper counts over 7 days. • At the pediatrician: real numbers, not estimates. WIDGET & NOTIFICATIONS Current status right on the Home Screen and Lock Screen — without opening the app. Start or stop sleep directly from the widget. Notification when a child sleeps unusually long. PRICING NapSip is free to download. Creating a family costs a one-time €14.99 — no subscription, no hidden costs. The partner joins for free with the invite code. PRIVACY Your data is yours. No ads. No tracking. No sharing with third parties. All data is encrypted in transit and at rest. Fully GDPR-compliant. Built by parents of multiples — for parents of multiples. With love from our kids Maja, Cleo, and Nova.
Screenshots
Verdict
The clearest difference is update cadence: NapSip at weekly against Period Tracker's every 6 weeks. NapSip also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Period Tracker sells 1 in-app purchase, starting at $14.99 per year and NapSip sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Period Tracker ships an update every 6 weeks, NapSip weekly. Both last shipped on October 24, 2026.
| Parameter | Period Tracker | NapSip |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (14 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Deebex Tech Ltd. | Fabian Sass |
In-app purchases
Period Tracker
- Premium Annual$14.991 Year
NapSip
- Family Unlock$12.99









