# Period Tracker vs Red Diary

The clearest difference is update cadence: Red Diary at every 3 days against Period Tracker's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Period Tracker sells 5 in-app purchases, starting at $4.99 per 7 days and Red Diary sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Period Tracker ships an update every 3 weeks, Red Diary every 3 days. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Period Tracker | Red Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/red-diary-period-tracker/id6767368239/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 21 MB | 8 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 12+ | 12+ |
| Developer | [Lucas Diaz](https://appshunter.io/developer/1742950982) | [RUBINS DORMEUS](https://appshunter.io/developer/1884865930) |

## What reviewers say

### Period Tracker

[App page](https://appshunter.io/ios/app/period-tracker-neva/id6535696217)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Premium Monthly | $9.99 | per month |
| Annual | $39.99 | per year |
| Unlimited access | $2.99 | one-time |
| Lifetime | $59.99 | one-time |


### Red Diary

[App page](https://appshunter.io/ios/app/red-diary-period-tracker/id6767368239)

This app analyzes your symptoms, mood, energy, sleep, and activity to provide personalized insights and daily guidance tailored to your cycle phases. It offers a body weather forecast and smart recommendations for exercise, nutrition, and self-care.

**Highlights:** Personalized cycle insights, Smart daily guidance, Body weather forecast, Cycle tracking modes (fertility, pregnancy, birth control), Symptom and mood logging, HealthKit integration, Apple Watch companion app

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Annual | $4.99 | per year |


## Frequently asked questions

### Is Period Tracker free?

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

### Is Red Diary free?

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

### Do Period Tracker or Red Diary have ads?

Neither Period Tracker nor Red Diary shows ads.

### Which is updated more often, Period Tracker or Red Diary?

Period Tracker ships an update every 3 weeks, and Red Diary every 3 days. Most recently, Period Tracker was updated on November 12, 2026 and Red Diary on November 5, 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.*