# LadyData vs Peri AI

The clearest difference is iOS requirement: LadyData at 15.1 against Peri AI's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. LadyData sells 2 in-app purchases, starting at $4.99 per month and Peri AI sells 2 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

LadyData ships an update every 3 weeks, Peri AI every 2 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | LadyData | Peri AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/ladydata/id6746421602/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 59 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Dance Party](https://appshunter.io/developer/1879519970) | [Eduard Baksheev](https://appshunter.io/developer/1679423884) |

## What reviewers say

### LadyData

[App page](https://appshunter.io/ios/app/ladydata/id6746421602)

This app helps women track their menstrual cycles and fertility. It allows for detailed recording of temperature, symptoms, and other cycle events to understand personal patterns. Designed for those practicing fertility awareness, it offers a clear, private way to monitor reproductive health.

**Highlights:** Cycle tracking, Basal body temperature recording, Cervical mucus tracking, Symptom logging, Pattern recognition, Privacy-focused design

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual LadyData Subscription | $29.99 | per year |


### Peri AI

[App page](https://appshunter.io/ios/app/peri-ai-period-tracker/id6759678846)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peri AI Premium Monthly | $24.99 | per month |
| Peri AI Premium Annual | $119.99 | per year |


## Frequently asked questions

### Is LadyData free?

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

### Is Peri AI free?

Peri AI is free to download, with in-app purchases available.

### Do LadyData or Peri AI have ads?

Neither LadyData nor Peri AI shows ads.

### Which is updated more often, LadyData or Peri AI?

LadyData ships an update every 3 weeks, and Peri AI every 2 weeks. Most recently, LadyData was updated on October 10, 2026 and Peri AI on October 15, 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.*