Comparison

Vio Period Tracker Cycle Diary vs Ovulation

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

Head to head
About

Vio Period Tracker Cycle Diary

This app helps women track their menstrual cycles, predict ovulation and fertile windows, and monitor symptoms. It offers personalized advice, expert articles, and tools for tracking water intake and physical activity.

Highlights
  • Menstrual cycle tracking
  • Ovulation and fertile window prediction
  • Symptom logging (42 symptoms)
  • Water intake tracker
  • Step and calorie counter
  • Personalized advice and expert articles
  • Visual analytics and graphs
Features
Read full description

Vio is a professional handheld mobile assistant that controls the natural physiological processes of the female body. How does Vio Period Tracker make it easier for women to live their daily lives? Providing a limitless arsenal of tools: Track your monthly menstrual cycle; Automatic calculation of the ovulatory period and fertile window; Consolidated visual analytics of the features of the menstrual cycle and marked symptoms; Convenient step-tracker, as well as water and symptom trackers; Professional online assistant with personalized advice and recommendations; Expert useful materials (tips and articles). The application makes it possible to track the features of the menstrual cycle, maintain a drinking balance, maintain daily physical activity, control specific symptoms, and receive professional useful tips. MENSTRUAL CALENDAR Fixating the beginning / end of menstrual bleeding; Get automatic calculation of ovulation and fertile window; Plan daily activity taking into account the peculiarities of the female cycle; Mark specific symptoms to clarify predictions for the next cycle. ANALYTICAL DATA Watch the features of each menstrual cycle; Compare monthly information using visualized graphs and charts; Analyze the duration and regularity of menstruation; View your daily symptoms; Follow the formation of good habits (drinking balance and physical activity); PEDOMETER Track your daily physical activity; Analyze the amount of calories burned; Get regular reminders and personalized helpful content. WATER TRACKER Drink a daily rate of clean water; Mark the intake of other fluids. SYMPTOM TRACKER Fixate daily symptoms (42 symptoms); Gather analytical data that will help determine the phases of the cycle; Prevent an unplanned pregnancy; In time, seek gynecological consultation. EXPERT MATERIALS Discover the secrets of natural female physiological processes; Get personalized materials based on analytical data. PERSONAL ASSISTANT Get personalized advice on every issue; Pay attention to changes in the body in time; Follow professional tips to improve your quality of life. Vio Period Tracker is a reliable assistant, advisor, and ... megamind in one application! Forget about a clustered desktop: all what a modern, active and successful woman needs, is found in the Vio application! • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable To track your steps, you need to connect the Health app. The app uses the Public HealthKit or CareKit APIs. For more information please visit the link https://support.apple.com/en-us/HT202039 Privacy Policy: https://vio-app.com/privacy-policy.html Terms of Use: https://vio-app.com/terms.html

About

Ovulation

This app helps you track your menstrual cycles, predict ovulation, and identify fertile days. It also allows you to log symptoms, mood, and other health data for a comprehensive overview. Get insights into your fertility and pregnancy chances.

Highlights
  • Predicts periods, ovulation, and fertile days
  • Tracks cycle length and period length
  • Logs weight, temperature, mood, and symptoms
  • Calculates daily pregnancy chances
  • Offers a security lock for privacy
  • Provides graphical health reports
Features
Read full description

Can’t remember the date of your last period? Then this app will help to know when your next period is coming and best chance of pregnancy? Ovulation: Period Tracker is a simple & elegant way to view past and predict future periods days & length, cycle length, ovulation days and fertile days. App is very useful, when you have irregular periods or regular periods or predict your period. It can track your chance of pregnancy every day. Set security lock from settings to make it completely privately. *Track your health : - Monthly calendar tells you your daily chance of getting pregnant, normal day, ovulation day and fertility day - Track your weight, temperature, mood, symptoms, intercourse, flow etc. - Record your ovulation and see best chance of pregnancy dates *Features of Ovulation: Period Tracker app - Set your period length and cycle length from settings - Keep track of your menstrual cycles with Period Calendar - App helps both women looking to conceive and those trying to birth control - It tracks your periods, cycles, ovulation and the chance of conception - Helps birth control in a natural way - Filter you’re your all reading with parameters - Graphical view of period chart, weight and temperature reports - Statistic of average cycle length and period length - Track your Fertility and ovulation calendar - Settings for weight unit, temperature unit and date formats - My Cycle Period, Cycle Calendar - Period Tracker & Period Calendar - Ovulation Calendar, Ovulation Tracker - Fertility Tracker, Fertile Days and see Pregnancy chances - Period Tracker for women, My Periods and Ovulation Tracker # Subscription Details # • Free version of app limits to limited beautiful themes, App Lock, Backup/Restore Data and Advertisements. For increase limit you have to buy subscriptions details are mentions below. • Monthly, six monthly and Annual subscriptions are available. • Payment will be charged to your iTunes account at confirmation of purchase. • Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period. • Automatic renewals will be charged at the same price you were originally charged for the subscription. • Subscriptions can be managed by going to Account Settings on the App Store after purchase. Privacy Policy: https://sites.google.com/view/rising-apps-privacy-policy Terms of Service: https://sites.google.com/view/rising-apps-terms-of-service

Screenshots

Vio Period Tracker Cycle Diary4 screens
Ovulation4 screens

Verdict

The call

The clearest difference is rating: Vio Period Tracker Cycle Diary at 4.4 against Ovulation's 1.0. Vio Period Tracker Cycle Diary also leads on ads (none vs shown) and update cadence (weekly vs every 7 months). On price, in-app purchases, monetization model 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. Vio Period Tracker Cycle Diary sells 9 in-app purchases, starting at $3.99 per 7 days and Ovulation sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Vio Period Tracker Cycle Diary holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Vio Period Tracker Cycle Diary has 36 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Vio Period Tracker Cycle Diary ships an update weekly, Ovulation every 7 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Vio Period Tracker Cycle Diary versus Ovulation: the parameters behind the verdict, then further details
ParameterVio Period Tracker Cycle DiaryOvulation
PriceFreeFree
Rating4.4 (36 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings36 — better1
Update frequencyWeekly — betterEvery 7 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.012.0
Further details — not scored
Size99 MB51 MB
Age rating12+4+
DeveloperKiril ZhylaMonali Paghadal

Customer experience

Vio Period Tracker Cycle Diary

All ratings36 ratings
Positive83.3%
Neutral5.6%
Negative11.1%
Written reviews19 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Ovulation

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

In-app purchases

9 purchases

Vio Period Tracker Cycle Diary

Subscriptions9
  • VIOPREMIUM7 Days trial$3.997 Days
  • Period Tracker Vio 1 month7 Days trial$5.991 Month
  • VIOPREMIUM7 Days trial$5.997 Days
Show 6 more
  • VIOPREMIUM7 Days trial$6.997 Days
  • VIOPREMIUM7 Days trial$9.991 Month
  • VIOPREMIUM$14.991 Month
  • VIOPREMIUM$19.993 Months
  • VIOPREMIUM2 variants$29.991 Year
  • Period Tracker Vio 1 year7 Days trial$49.991 Year
3 purchases

Ovulation

Subscriptions3
  • Monthly$2.991 Month
  • Six Monthly$14.996 Months
  • Yearly$24.991 Year

Questions

Is Vio Period Tracker Cycle Diary free?
Vio Period Tracker Cycle Diary is free to download, with in-app purchases available.
Is Ovulation free?
Ovulation is free to download, with in-app purchases available.
Which has better reviews, Vio Period Tracker Cycle Diary or Ovulation?
Vio Period Tracker Cycle Diary is rated higher. Vio Period Tracker Cycle Diary averages 4.4 out of 5 from 36 ratings, while Ovulation averages 1.0 from 1 ratings.
Do Vio Period Tracker Cycle Diary or Ovulation have ads?
Ovulation shows ads; Vio Period Tracker Cycle Diary does not.
Which is updated more often, Vio Period Tracker Cycle Diary or Ovulation?
Vio Period Tracker Cycle Diary ships an update weekly, and Ovulation every 7 months. Most recently, Vio Period Tracker Cycle Diary was updated on November 3, 2026 and Ovulation on November 4, 2026.

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