# Ovulation Estimator vs Period Tracker + Ovulation

The clearest difference is in-app purchases: Ovulation Estimator at none against Period Tracker + Ovulation's 4. Period Tracker + Ovulation's advantage is update cadence (every 3 weeks vs every 6 months) and iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Period Tracker + Ovulation sells 4 in-app purchases, starting at $2.99 per 7 days. Ovulation Estimator asks for nothing beyond the download.

Ovulation Estimator ships an update every 6 months, Period Tracker + Ovulation every 3 weeks. The most recent releases landed on November 1, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Ovulation Estimator | Period Tracker + Ovulation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ovulation-estimator/id529437218/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 6 MB | 48 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Malay Patel](https://appshunter.io/developer/510333524) | [Matheswaran Murugan](https://appshunter.io/developer/1848838848) |

## What reviewers say

### Ovulation Estimator

[App page](https://appshunter.io/ios/app/ovulation-estimator/id529437218)

This health tool helps you estimate your ovulation date. Simply enter your last menstrual period and cycle length to predict your most fertile days. It's designed for women tracking their reproductive health.

**Highlights:** Ovulation date calculation, Last menstrual period input, Period cycle length input, Fertile window prediction, Health and fitness tracking

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

**In-app purchases:** none


### Period Tracker + Ovulation

[App page](https://appshunter.io/ios/app/period-tracker-plus-ovulation/id6779492420)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Period Tracker Premium Weekly | $2.99 | per 7 days |
| Period Tracker Premium Monthly | $6.99 | per month |
| Period Tracker Premium Yearly | $29.99 | per year |
| Period Tracker Premium Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Ovulation Estimator free?

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

### Is Period Tracker + Ovulation free?

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

### Do Ovulation Estimator or Period Tracker + Ovulation have ads?

Neither Ovulation Estimator nor Period Tracker + Ovulation shows ads.

### Which is updated more often, Ovulation Estimator or Period Tracker + Ovulation?

Ovulation Estimator ships an update every 6 months, and Period Tracker + Ovulation every 3 weeks. Most recently, Ovulation Estimator was updated on November 1, 2026 and Period Tracker + Ovulation on October 18, 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.*