# Ovulation Estimator vs Ovulation Calculator & Tracker

The clearest difference is in-app purchases: Ovulation Estimator at none against Ovulation Calculator & Tracker's 1. Ovulation Calculator & Tracker's advantage is iOS requirement (12.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ovulation Calculator & Tracker sells 1 in-app purchase, starting at $4.99 per month. Ovulation Estimator asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Ovulation Estimator | Ovulation Calculator & Tracker |
| --- | --- | --- |
| 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 6 months |
| Monetization | Free | — |
| Size | 6 MB | 73 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Malay Patel](https://appshunter.io/developer/510333524) | [Denis Vithani](https://appshunter.io/developer/1611512969) |

## 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

**In-app purchases:** none


### Ovulation Calculator & Tracker

[App page](https://appshunter.io/ios/app/ovulation-calculator-and-tracker/id6469784954)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Record - Monthly | $4.99 | per month |


## Frequently asked questions

### Is Ovulation Estimator free?

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

### Is Ovulation Calculator & Tracker free?

Ovulation Calculator & Tracker is free to download, with in-app purchases available.

### Do Ovulation Estimator or Ovulation Calculator & Tracker have ads?

Neither Ovulation Estimator nor Ovulation Calculator & Tracker shows ads.

### Which is updated more often, Ovulation Estimator or Ovulation Calculator & Tracker?

Ovulation Estimator ships an update every 6 months, and Ovulation Calculator & Tracker every 6 months. Most recently, Ovulation Estimator was updated on October 16, 2026 and Ovulation Calculator & Tracker on October 7, 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.*