# Fertile Foundations vs Ovulation Calculator & Tracker

The clearest difference is in-app purchases: Fertile Foundations at none against Ovulation Calculator & Tracker's 1. Fertile Foundations also leads on update cadence (every 5 weeks vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Fertile Foundations ships an update every 5 weeks, Ovulation Calculator & Tracker every 6 months. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Fertile Foundations | Ovulation Calculator & Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Size | 50 MB | 73 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [MB 360, LLC](https://appshunter.io/developer/1726635551) | [Denis Vithani](https://appshunter.io/developer/1611512969) |

## What reviewers say

### Fertile Foundations

[App page](https://appshunter.io/ios/app/fertile-foundations/id1611591436)

**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 Fertile Foundations free?

Fertile Foundations 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 Fertile Foundations or Ovulation Calculator & Tracker have ads?

Neither Fertile Foundations nor Ovulation Calculator & Tracker shows ads.

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

Fertile Foundations ships an update every 5 weeks, and Ovulation Calculator & Tracker every 6 months. Most recently, Fertile Foundations was updated on October 25, 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.*