# 28X Private Period Tracker vs Reign Studios

The clearest difference is in-app purchases: Reign Studios at none against 28X Private Period Tracker's 1. 28X Private Period Tracker's advantage is update cadence (weekly vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 28X Private Period Tracker sells 1 one-off in-app purchase. Reign Studios asks for nothing beyond the download.

28X Private Period Tracker ships an update weekly, Reign Studios every 12 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | 28X Private Period Tracker | Reign Studios |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/28x-private-period-tracker/id6747716043/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 12 months |
| Monetization | Free | — |
| Size | 100 MB | 84 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [28x](https://appshunter.io/developer/1822565803) | [Reign Pilates Studios Ltd](https://appshunter.io/developer/1839926705) |

## What reviewers say

### 28X Private Period Tracker

[App page](https://appshunter.io/ios/app/28x-private-period-tracker/id6747716043)

Understand your menstrual cycle with a privacy-focused period tracker. Log moods, symptoms, and gain insights into your body's patterns from first periods to menopause. All your data stays on your device, with no ads or data selling.

**Highlights:** Period and cycle tracking, Menstrual phase predictions, Mood, energy, and symptom logging, Clinically informed women's health content, Data stored locally on device, No ads, subscriptions, or data selling

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NEON Butterfly | $1.99 | one-time |


### Reign Studios

[App page](https://appshunter.io/ios/app/reign-studios/id6752568601)

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

**In-app purchases:** none


## Frequently asked questions

### Is 28X Private Period Tracker free?

28X Private Period Tracker is free to download, with in-app purchases available.

### Is Reign Studios free?

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

### Do 28X Private Period Tracker or Reign Studios have ads?

Neither 28X Private Period Tracker nor Reign Studios shows ads.

### Which is updated more often, 28X Private Period Tracker or Reign Studios?

28X Private Period Tracker ships an update weekly, and Reign Studios every 12 months. Most recently, 28X Private Period Tracker was updated on October 28, 2026 and Reign Studios on October 28, 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.*