# SRI Acne vs Period Tracker

The clearest difference is iOS requirement: SRI Acne at 11.0 against Period Tracker's 15.1. On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | SRI Acne | Period Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (18 ratings)](https://appshunter.io/ios/app/period-tracker-cycle-log/id6760383501/reviews)** |
| Number of ratings | — | **18** |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Size | 63 MB | 26 MB |
| Requires iOS | **11.0** | 15.1 |
| Age rating | 12+ | 4+ |
| Developer | [Skin Research Institute](https://appshunter.io/developer/1559085662) | [Blas Prieto](https://appshunter.io/developer/1878084920) |

## What reviewers say

### SRI Acne

[App page](https://appshunter.io/ios/app/sri-acne/id1559085660)

**In-app purchases:** none


### Period Tracker

[App page](https://appshunter.io/ios/app/period-tracker-cycle-log/id6760383501)

This app helps you understand your body's natural rhythm by predicting your cycle and optimizing your life around your hormones. It allows you to log flow levels, mood changes, and symptoms, offering insights into patterns and trends.

**Highlights:** Predict cycle and fertile window, Log flow levels and mood changes, Track symptoms like cramps and fatigue, 5-phase cycle visualization, Smart predictions based on history, Color-coded calendar, Detailed cycle statistics

**In-app purchases:** none


## Frequently asked questions

### Is SRI Acne free?

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

### Is Period Tracker free?

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

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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.*