Ovulation Calc vs Ovuly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ovulation Calc
Predict your most fertile days to increase your chances of conception. This tool helps determine ovulation timing based on individual menstrual cycles. It is not intended for pregnancy prevention.
- Ovulation prediction
- Fertile window identification
- Menstrual cycle tracking
- Conception assistance
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Ovulation Calculator Find out when you're likely to ovulate and boost your chances of getting pregnant. Ovulation Calc helps you predict your most fertile days of the month. Menstrual periods vary from woman to woman and month to month. Use this calculator to help determine the timing of your ovulation and peak fertility. CAUTION: This tool cannot and should not be used to prevent pregnancy.
Ovuly
This app uses biometric data from Apple Health to provide accurate cycle predictions. It helps you understand how your cycle impacts mood, energy, and symptoms, offering insights and planning tools without compromising your privacy.
- Biometric-powered cycle predictions
- Wrist temperature and HRV analysis
- Privacy-focused iCloud data storage
- Clean and focused user interface
- Period, fertile window, and ovulation tracking
- Yearly cycle prediction view
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Make sense of your cycle. Your body does not run on a calendar average. Ovuly combines your cycle history with health data from Apple Watch to help forecast your period, fertile window, and ovulation. As you track more cycles, Ovuly learns more about your patterns. SEE WHAT IS HAPPENING Check your cycle day and phase at a glance. Log flow, spotting, symptoms, mood, and notes without digging through endless menus. A color-coded calendar shows what is coming, while trends help connect changes in energy, mood, and symptoms to each phase of your cycle. USE THE DATA YOU ALREADY HAVE If you choose to connect Apple Health, Ovuly can use wrist temperature, heart rate variability, resting heart rate, and sleep data recorded by Apple Watch. These signals add context to your cycle history and improve Ovuly's forecasts. You can also export menstruation and spotting data back to Apple Health. PARTNER MODE Your partner can follow your cycle and keep up with where you are. OVULY PLUS Ovuly Plus unlocks period, fertile window, and ovulation forecasts, personalized insights, full symptom logging, and advanced calendar features. Look up to 12 months ahead, compare cycle lengths over time, and spot patterns in how you feel. The basic cycle view, phase summaries, quick logging, and phase guide remain free. PRIVATE BY DESIGN You do not need an account or email address. Ovuly has no server that stores your cycle history. Your data stays in your own iCloud account and syncs across your devices with end-to-end encryption. Apple Health and iCloud sync are optional, and Ovuly never sells your data. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ovuly.app/privacy
Screenshots
Verdict
The clearest difference is rating: Ovuly at 5.0 against Ovulation Calc's 1.0. Ovuly also leads on update cadence (every 2 weeks vs every 45 months). Ovulation Calc's advantage is in-app purchases (none vs 3) and iOS requirement (7.0 vs 26.0). On price, ratings volume, ads 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
Both are free to download. Ovuly sells 3 in-app purchases, starting at $1.99 per 7 days. Ovulation Calc asks for nothing beyond the download.
Ovuly holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Ovulation Calc ships an update every 45 months, Ovuly every 2 weeks. The most recent releases landed on October 5, 2026 and September 24, 2026 respectively.
| Parameter | Ovulation Calc | Ovuly |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 45 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 7.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 8 MB | 11 MB |
| Age rating | 4+ | 12+ |
| Developer | Kyriakos Leivadas | True Tuesday FZE LLC |
Customer experience
Ovulation Calc
Ovuly
In-app purchases
Ovulation Calc
No in-app purchases
Ovuly
- Weekly3 Days trial$1.997 Days
- Monthly3 Days trial$4.991 Month
- Yearly$29.991 Year
Questions
Is Ovulation Calc free?
Is Ovuly free?
Which has better reviews, Ovulation Calc or Ovuly?
Do Ovulation Calc or Ovuly have ads?
Which is updated more often, Ovulation Calc or Ovuly?
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