# Feminine Calendar vs MutLab

The clearest difference is price: MutLab at Free against Feminine Calendar's $0.99. Feminine Calendar's advantage is update cadence (every 5 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

MutLab is free to download; Feminine Calendar costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Feminine Calendar ships an update every 5 weeks, MutLab every 2 months. The most recent releases landed on November 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Feminine Calendar | MutLab |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/feminine-calendar/id595717748/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 19 MB | 61 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +12 | 4+ |
| Developer | [Claudio H P Castro](https://appshunter.io/developer/410858154) | [Mutlab](https://appshunter.io/developer/1363984051) |

## What reviewers say

### Feminine Calendar

[App page](https://appshunter.io/ios/app/feminine-calendar/id595717748)

This application helps women track their menstrual cycles to identify fertile and infertile periods. It aims to assist those trying to conceive by estimating ovulation dates and predicting the most and least opportune times for pregnancy. It is not intended as a contraceptive method.

**Highlights:** Menstrual cycle tracking, Fertile window prediction, Ovulation date estimation, Pregnancy probability assessment, Cycle day analysis

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

**In-app purchases:** none


### MutLab

[App page](https://appshunter.io/ios/app/mutlab/id1576343740)

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

**In-app purchases:** none


## Frequently asked questions

### Is Feminine Calendar free?

Feminine Calendar costs $0.99, with no in-app purchases.

### Is MutLab free?

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

### Do Feminine Calendar or MutLab have ads?

Neither Feminine Calendar nor MutLab shows ads.

### Which is updated more often, Feminine Calendar or MutLab?

Feminine Calendar ships an update every 5 weeks, and MutLab every 2 months. Most recently, Feminine Calendar was updated on November 6, 2026 and MutLab 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.*