# Iris vs Post Pill

The clearest difference is ads: Post Pill at none against Iris's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Iris sells 1 one-off in-app purchase and Post Pill sells 1 in-app purchase, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Iris ships an update every 9 days, Post Pill every 11 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Iris | Post Pill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/iris-period-and-cycle-tracker/id6761134901/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 11 days |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 2 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Arbaz Siddiqui](https://appshunter.io/developer/1887947140) | [Bobby Landerman](https://appshunter.io/developer/6804782721) |

## What reviewers say

### Iris

[App page](https://appshunter.io/ios/app/iris-period-and-cycle-tracker/id6761134901)

This app offers comprehensive period and cycle tracking with advanced features like irregular cycle detection and personal insight generation. It prioritizes user privacy by keeping all data on the device, avoiding data sharing with advertisers. It also syncs with Apple Health and includes educational content on hormones.

**Highlights:** Period and cycle prediction, Irregular cycle tracking, Personalized insights and pattern detection, LH strip and BBT logging, Apple Health synchronization, Contraceptive and postpartum modes, Symptom and mood tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Iris (No Ads) | $2.99 | one-time |


### Post Pill

[App page](https://appshunter.io/ios/app/post-pill-birth-control-log/id6808062045)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |


## Frequently asked questions

### Is Iris free?

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

### Is Post Pill free?

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

### Do Iris or Post Pill have ads?

Iris shows ads; Post Pill does not.

### Which is updated more often, Iris or Post Pill?

Iris ships an update every 9 days, and Post Pill every 11 days. Most recently, Iris was updated on October 28, 2026 and Post Pill on October 29, 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.*