Comparison

Period Tracker vs TwoLynes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Period Tracker

This app helps you track your menstrual cycle, predict ovulation, and log symptoms. It offers personalized insights and gentle reminders to help you understand your body better. Designed for simplicity and privacy, it's a comprehensive tool for managing your reproductive health.

Highlights
  • Menstrual cycle tracking
  • Ovulation prediction
  • Period and flow logging
  • Symptom and emotion tracking
  • Personalized insights
  • Gentle reminders
Read full description

Meet Ruby – your simple, smart, and free period tracker. Whether you want to track your menstrual cycle, get accurate ovulation predictions, or simply have a clue about your period, Ruby makes it easy to understand your body. Think of it as having Aunt Flo, Aunt Ruby, and your own personal cycle tracker all in one app. With Ruby, you can: - Log your period, flow, and symptoms with just a tap - Use our ovulation tracker to know your most fertile days - Predict cycles with a free period tracker that adapts to you - Track emotions, energy, stress, and notes in one place - Get gentle reminders for upcoming periods, ovulation, and fertile windows Why choose Ruby? - Simple & private – Easy to use, built with privacy in mind. - Your cycle, your way – From teens starting their first period, to women tracking fertility, pregnancy, or perimenopause. - More than a calendar – Ruby helps you spot patterns, manage PMS, and make your cycle feel less of a mystery. How Ruby Stands Out - Have a lively cycle every month with personalized insights. - Finally, an app that helps you truly have a clue about your period. - Forget “my cycle” being hard to remember—Ruby keeps it all logged for you. It's just a clean free period app experience. Privacy policy: https://bit.ly/rafiki-privacy-policy Terms of use: https://bit.ly/rafiki-terms-of-service

About

TwoLynes

Track your pregnancy week by week with this comprehensive guide. Organize appointments, monitor baby's development, and connect with other mothers. Features include a digital health record, contraction timer, and baby name suggestions.

Highlights
  • Week-by-week baby development tracking
  • Appointment and vaccination scheduler
  • Digital health record and medication log
  • Contraction timer and kick counter
  • Mom's community forum
  • AI-powered baby name suggestions
  • Pregnancy diary and belly photos
  • Baby registry checklist
Features
Read full description

**Twolynes – Your Pregnancy Companion** Twolynes is an all-in-one pregnancy app designed to help expecting moms track their pregnancy journey with confidence, from the earliest weeks to the day their baby arrives. From week 1 to birth, Twolynes brings everything you need together in one place: prenatal appointments, medical tests, your baby's development, and much more. **WHAT YOU GET WITH TWOLYNES:** - **Week-by-Week Development** — Follow your baby's growth with helpful educational content. - **Pregnancy Calendar** — Organize prenatal appointments, tests, vaccinations, and reminders by date. - **Digital Pregnancy Record** — Keep track of symptoms, complications, medications, and test results. - **Contraction Timer** — Easily record contraction duration and intervals. - **Kick Counter** — Track your baby's movements. - **Mom Community** — Connect and share experiences with other expecting moms at the same stage. - **AI Baby Names** — Discover baby names with personalized suggestions. - **Bump Diary** — Capture and save photos of your growing bump. - **Birth Plan** — Organize your labor and delivery preferences. - **Baby Checklist** — Stay organized with a complete baby shopping checklist. **TRY TWOLYNES FREE** Enjoy full access to Twolynes with a 3-day free trial. After the trial, your selected monthly or annual subscription will begin automatically unless you cancel before the trial ends. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current subscription period. You can manage or cancel your subscription anytime in your iPhone's App Store account settings. **IMPORTANT INFORMATION** Twolynes is a pregnancy tracking and educational app. It does not provide medical advice, diagnoses, or treatment. The contraction timer is intended for logging

Screenshots

Period Tracker4 screens
TwoLynes4 screens

Verdict

The call

Period Tracker and TwoLynes both sit at 5.0 stars, but that hides the real split: 100% of Period Tracker's written reviews are positive against 64% of TwoLynes's. Period Tracker also leads on in-app purchases (none vs 2). TwoLynes's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price, rating and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TwoLynes sells 2 in-app purchases, starting at $9.99 per month. Period Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Period Tracker against 4.9 for TwoLynes. That said, the two scores are not equally well evidenced: TwoLynes has 37 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 100% of Period Tracker's written reviews are positive against 64% of TwoLynes's.

UpkeepUpdate frequency

Period Tracker ships an update every 2 weeks, TwoLynes every 4 days. Both last shipped on October 25, 2026.

Scorecard7 real differences · 3 level
Period Tracker versus TwoLynes: the parameters behind the verdict, then further details
ParameterPeriod TrackerTwoLynes
PriceFreeFree
Rating5.0 (3 ratings) — better4.9 (37 ratings)
Positive reviews100.0% of reviews — better64.3% of reviews
Number of ratings337 — better
Update frequencyEvery 2 weeksEvery 4 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size47 MB71 MB
Age rating12++12
DeveloperRafiki Apps LLCBI TREINAMENTOS DIGITAIS LTDA

Customer experience

Period Tracker

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

TwoLynes

All ratings34 ratings
Positive97.1%
Neutral0.0%
Negative2.9%
Written reviews14 reviews
Positive64.3%
Neutral7.1%
Negative28.6%

In-app purchases

None

Period Tracker

No in-app purchases

2 purchases

TwoLynes

Subscriptions2
  • Monthly Plan3 Days trial$9.991 Month
  • Annual Plan3 Days trial$39.991 Year

Questions

Is Period Tracker free?
Period Tracker is free to download, with no in-app purchases.
Is TwoLynes free?
TwoLynes is free to download, with in-app purchases available.
Which has better reviews, Period Tracker or TwoLynes?
Period Tracker is rated higher. Period Tracker averages 5.0 out of 5 from 3 ratings, while TwoLynes averages 4.9 from 37 ratings.
Do Period Tracker or TwoLynes have ads?
Period Tracker shows ads; TwoLynes does not.
Which is updated more often, Period Tracker or TwoLynes?
Period Tracker ships an update every 2 weeks, and TwoLynes every 4 days. Most recently, Period Tracker was updated on October 25, 2026 and TwoLynes on October 25, 2026.

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