# PMDD Tracker vs Peri Trial

The clearest difference is in-app purchases: Peri Trial at none against PMDD Tracker's 17. Peri Trial also leads on update cadence (every 8 days vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PMDD Tracker sells 17 in-app purchases, starting at $4.95 per month. Peri Trial asks for nothing beyond the download.

PMDD Tracker ships an update every 7 months, Peri Trial every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | PMDD Tracker | Peri Trial |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/pmdd-tracker-pramidi/id6742119385/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 199 MB | 52 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Digital Therapeutics](https://appshunter.io/developer/1721663167) | [identifyHer](https://appshunter.io/developer/1756877025) |

## What reviewers say

### PMDD Tracker

[App page](https://appshunter.io/ios/app/pmdd-tracker-pramidi/id6742119385)

This app helps individuals track daily symptoms related to Premenstrual Dysphoric Disorder (PMDD). It maps menstrual cycles, identifies early warning signs, and generates reports for healthcare providers. It also offers educational resources on PMDD and menstrual health.

**Highlights:** Daily symptom tracking, Menstrual cycle mapping, Early warning sign identification, Doctor report generation, Evidence-based PMDD education, Treatment monitoring

**Features:** macOS Compatibility, Siri integration, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| steady pass | $4.95 | per month |
| easy pass | $5.99 | per 7 days |
| flex pass | $8.99 | per month |
| weather max | $9.99 | per 3 months |
| carey ai max | $19.99 | per month |
| yearly access | $19.99 | per year |
| smart pass | $24.99 | per year |
| carey ai ultra | $29.99 | per month |
| plus | $29.99 | per year |
| limited discount | $29.99 | per year |
| Premium Yearly | $34.99 | per year |
| yearly access | $39.99 | per year |
| Premium Yearly | $39.99 | per year |
| 7-Day Trial | $49.99 | per year |
| store credit | $1.99 | one-time |
| carey ai credits | $8.99 | one-time |
| lifetime upgrade | $99.00 | one-time |


### Peri Trial

[App page](https://appshunter.io/ios/app/peri-trial/id6744154626)

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

**In-app purchases:** none


## Frequently asked questions

### Is PMDD Tracker free?

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

### Is Peri Trial free?

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

### Do PMDD Tracker or Peri Trial have ads?

Neither PMDD Tracker nor Peri Trial shows ads.

### Which is updated more often, PMDD Tracker or Peri Trial?

PMDD Tracker ships an update every 7 months, and Peri Trial every 8 days. Most recently, PMDD Tracker was updated on October 24, 2026 and Peri Trial 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.*