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 understand your body by tracking your menstrual cycle, predicting ovulation, and logging symptoms. It offers gentle reminders and personalized insights to make managing your cycle easier.

Highlights
  • Log period, flow, and symptoms
  • Ovulation and fertile window prediction
  • Cycle prediction and pattern spotting
  • Track emotions, energy, stress, and notes
  • Gentle reminders for periods and ovulation
  • Personalized insights
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 4.8 stars, but that hides the real split: 100% of Period Tracker's written reviews are positive against 64% of TwoLynes's. TwoLynes's advantage is ads (none vs shown) and update cadence (every 4 days vs fortnightly). On price, rating, in-app purchases and monetization model 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. Period Tracker sells 1 in-app purchase, starting at $29.99 per year and TwoLynes sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Period Tracker against 4.8 for TwoLynes. That said, the two scores are not equally well evidenced: TwoLynes has 128 ratings behind it against 17, 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 fortnightly, TwoLynes every 4 days. The most recent releases landed on November 14, 2026 and November 13, 2026 respectively.

Scorecard5 real differences · 5 level
Period Tracker versus TwoLynes: the parameters behind the verdict, then further details
ParameterPeriod TrackerTwoLynes
PriceFreeFree
Rating4.8 (17 ratings)4.8 (128 ratings) — better
Positive reviews100.0% of reviews — better64.3% of reviews
Number of ratings17128 — better
Update frequencyFortnightlyEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size53 MB71 MB
Age rating12+12+
DeveloperRafiki AppsBI TREINAMENTOS DIGITAIS LTDA

Customer experience

Period Tracker

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 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

1 purchases

Period Tracker

Subscriptions1
  • Ruby Premium7 Days trial$29.991 Year
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 in-app purchases available.
Is TwoLynes free?
TwoLynes is free to download, with in-app purchases available.
Which has better reviews, Period Tracker or TwoLynes?
TwoLynes is rated higher. Period Tracker averages 4.8 out of 5 from 17 ratings, while TwoLynes averages 4.8 from 128 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 fortnightly, and TwoLynes every 4 days. Most recently, Period Tracker was updated on November 14, 2026 and TwoLynes on November 13, 2026.

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