# Ovulation Calc vs Period

The clearest difference is rating: Period at 5.0 against Ovulation Calc's 1.0. Period also leads on update cadence (every 4 months vs every 45 months) and ratings volume (3 vs 1). Ovulation Calc's advantage is in-app purchases (none vs 5) and iOS requirement (7.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Period sells 4 in-app purchases, starting at $3.99 per 7 days. Ovulation Calc asks for nothing beyond the download.

Period holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Ovulation Calc ships an update every 45 months, Period every 4 months. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Ovulation Calc | Period |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ovulation-calc/id615416891/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/period-cycle-tracker/id6446484758/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 45 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 17 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kyriakos Leivadas](https://appshunter.io/developer/537179532) | [nuriddin hakimov](https://appshunter.io/developer/1530502352) |

## What reviewers say

### Ovulation Calc

[App page](https://appshunter.io/ios/app/ovulation-calc/id615416891)

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.

**Highlights:** Ovulation prediction, Fertile window identification, Menstrual cycle tracking, Conception assistance

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

**In-app purchases:** none


### Period

[App page](https://appshunter.io/ios/app/period-cycle-tracker/id6446484758)

This app helps women track their menstrual cycles, predict ovulation, and monitor pregnancy stages. It offers features for logging symptoms, tracking weight, and performing pelvic floor exercises. It also provides helpful tips and a baby growth tracker.

**Highlights:** Menstrual cycle tracking, Ovulation prediction, Pregnancy stage monitoring, Weight tracking, Kegel exercise guidance, Baby growth tracking, Period and symptom logging

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Initial offer | $3.99 | per 7 days |
| Basic offer | $12.99 | per month |
| Super offer | $14.99 | per 3 months |
| Super offer | $49.99 | per year |


## Frequently asked questions

### Is Ovulation Calc free?

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

### Is Period free?

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

### Which has better reviews, Ovulation Calc or Period?

Period is rated higher. Ovulation Calc averages 1.0 out of 5 from 1 ratings, while Period averages 5.0 from 3 ratings.

### Do Ovulation Calc or Period have ads?

Neither Ovulation Calc nor Period shows ads.

### Which is updated more often, Ovulation Calc or Period?

Ovulation Calc ships an update every 45 months, and Period every 4 months. Most recently, Ovulation Calc was updated on October 5, 2026 and Period on October 12, 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.*