# Period Tracker vs Ovulation Date Calculator

The clearest difference is in-app purchases: Ovulation Date Calculator at none against Period Tracker's 3. Ovulation Date Calculator also leads on update cadence (every 3 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Period Tracker sells 3 in-app purchases, starting at $4.99 per month. Ovulation Date Calculator asks for nothing beyond the download.

Period Tracker ships an update every 9 days, Ovulation Date Calculator every 3 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Period Tracker | Ovulation Date Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/period-tracker-cycle-diary/id6753865732/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 200 MB | 30 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Hafiz Muhammad Talha](https://appshunter.io/developer/1835434901) | [Abdelkarem Bahy Abdelkarem](https://appshunter.io/developer/1848738097) |

## What reviewers say

### Period Tracker

[App page](https://appshunter.io/ios/app/period-tracker-cycle-diary/id6753865732)

This app helps you track your menstrual cycle, ovulation, and fertility. It offers personalized insights for managing conditions like PCOS and endometriosis, and supports those trying to conceive. Your data is kept private with password protection and no account is required.

**Highlights:** Menstrual cycle and flow tracking, Ovulation and fertile window prediction, Symptom and mood logging, Pill and birth control reminders, Personalized cycle predictions, Conception support tools

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| 6 Months | $23.95 | per 6 months |
| Yearly | $35.90 | per year |


### Ovulation Date Calculator

[App page](https://appshunter.io/ios/app/ovulation-date-calculator/id6754885156)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Period Tracker free?

Period Tracker is free to download, with in-app purchases available.

### Is Ovulation Date Calculator free?

Ovulation Date Calculator is free to download, with no in-app purchases.

### Do Period Tracker or Ovulation Date Calculator have ads?

Both Period Tracker and Ovulation Date Calculator show ads.

### Which is updated more often, Period Tracker or Ovulation Date Calculator?

Period Tracker ships an update every 9 days, and Ovulation Date Calculator every 3 days. Most recently, Period Tracker was updated on October 28, 2026 and Ovulation Date Calculator on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*