Comparison

Selin vs Period Tracker

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

Head to head
About

Selin

Track your menstrual cycle, predict periods and ovulation, and log symptoms and moods. Offers personalized reminders and educational health insights. Helps understand your cycle patterns and plan ahead.

Highlights
  • Period tracking
  • Ovulation prediction
  • Symptom and mood logging
  • Personalized reminders
  • Cycle history analysis
  • Educational health articles
Features
Read full description

Track your period, understand your menstrual cycle, and plan ahead with Selin. See estimated upcoming periods and ovulation dates, keep a clear period calendar, and record symptoms, moods, and notes in one app. PERIOD TRACKER & MENSTRUAL CALENDAR Log your period dates and review your cycle history. See estimated upcoming periods, track cycle length, and keep your calendar organized. OVULATION TRACKER & FERTILITY CALENDAR View estimated ovulation days and fertile windows alongside your period calendar. Use these estimates to understand cycle patterns when planning for pregnancy. SYMPTOMS, MOODS & NOTES Record symptoms such as cramps and bloating, keep notes, and track mood changes throughout your menstrual cycle. IRREGULAR PERIODS & CYCLE HISTORY Review changes in period timing and cycle length over time, including irregular cycles. Your logged history stays easy to find in one place. PERSONALIZED REMINDERS Set reminders for your period, estimated ovulation, contraceptive pill routine, appointments, and other dates that matter to you. MULTIPLE CALENDARS Create and manage multiple calendars, with records and reminders organized in one app. MENSTRUAL HEALTH INSIGHTS Explore educational articles about periods, fertility, contraception, and reproductive health. Ask general questions through Selin's virtual assistant. YOUR CYCLE, EASIER TO UNDERSTAND Selin makes daily period tracking simple, whether you're just getting started or want a clearer view of your history. Download Selin and start tracking. Cycle and fertility predictions are estimates and may vary. Do not use Selin as a contraceptive method. Selin provides general educational information and is not a substitute for medical advice. Consult a qualified healthcare professional if you have health concerns. Privacy Policy: https://selin.app/privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Period Tracker

This app helps women track their menstrual cycles, predict ovulation, and record health symptoms. It offers visual calendars, smart reminders, and detailed statistics to understand body patterns. All data is stored locally for complete privacy.

Highlights
  • Automatic cycle calculation and prediction
  • Comprehensive health recording (symptoms, BBT, weight)
  • Smart notifications and reminders
  • Statistics and graph analysis
  • Local data storage for privacy
  • User-friendly design
Features
Read full description

CycleFlow is a simple and intuitive menstrual cycle tracking app designed for women who want to manage their reproductive health effectively. With visual calendar displays you can easily track your period schedule ovulation days and fertile windows to plan your life accordingly. 【Key Features】 ■ Automatic Cycle Calculation & Prediction Calculate average cycles from your past records and automatically predict your next period start date and ovulation day. Color-coded calendar shows menstrual period ovulation phase and safe days at a glance. ■ Comprehensive Health Recording Record not only period start and end dates but also symptoms like cramps headaches bloating and mood changes. Track basal body temperature and weight for complete health monitoring. ■ Smart Notifications & Reminders Set notifications 1-7 days before your expected period. Recording reminders help maintain consistent tracking for accurate predictions. ■ Statistics & Graph Analysis Visualize your data through cycle history graphs symptom frequency analysis and basal temperature trends. Understand your body patterns and improve your health management. ■ Complete Privacy Protection All data is stored locally on your device only. No cloud synchronization means your sensitive personal information stays completely private and secure. ■ User-Friendly Design Intuitive icons and clear navigation make the app easy to use for everyone. Clean interface focuses on essential features without complexity. While not a medical device CycleFlow serves as a helpful tool for daily health management and menstrual cycle awareness. Support your regular lifestyle and healthy living with reliable period tracking.

Screenshots

Selin4 screens
Period Tracker3 screens

Verdict

The call

The clearest difference is rating: Selin at 4.3 against Period Tracker's 1.0. Selin also leads on update cadence (weekly vs every 7 months) and ratings volume (10 vs 1). On price, ads, 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. Selin sells 2 in-app purchases, starting at $7.99 per month and Period Tracker sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Selin holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Selin has 10 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Selin ships an update weekly, Period Tracker every 7 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Selin versus Period Tracker: the parameters behind the verdict, then further details
ParameterSelinPeriod Tracker
PriceFreeFree
Rating4.3 (10 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings10 — better1
Update frequencyWeekly — betterEvery 7 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size57 MB75 MB
Age rating17+4+
DeveloperTech Brit, Inckota tada

Customer experience

Selin

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Period Tracker

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

2 purchases

Selin

Subscriptions2
  • 1 month3 Days trial$7.991 Month
  • 1 year7 Days trial$47.951 Year
2 purchases

Period Tracker

Subscriptions2
  • Ad-free for 1 month7 Days trial$4.991 Month
  • Ad-free for 1 year14 Days trial$29.991 Year

Questions

Is Selin free?
Selin is free to download, with in-app purchases available.
Is Period Tracker free?
Period Tracker is free to download, with in-app purchases available.
Which has better reviews, Selin or Period Tracker?
Selin is rated higher. Selin averages 4.3 out of 5 from 10 ratings, while Period Tracker averages 1.0 from 1 ratings.
Do Selin or Period Tracker have ads?
Both Selin and Period Tracker show ads.
Which is updated more often, Selin or Period Tracker?
Selin ships an update weekly, and Period Tracker every 7 months. Most recently, Selin was updated on November 3, 2026 and Period Tracker on October 30, 2026.

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