---
title: A free, private Flo alternative for iPhone
description: A free, private alternative to Flo for iPhone: period and ovulation predictions, PCOS mode, BBT and LH tracking, partner sharing and Apple Health sync, with no account, no subscription and data on your phone.
url: https://www.arbazsiddiqui.me/app/iris/flo-alternative/
---

# A private Flo alternative

Looking for a period tracker like Flo, without a subscription or your data leaving your phone? Iris does the core of what Flo does, keeps everything on your iPhone and has no account.

App Store: https://apps.apple.com/app/id6761134901

## Iris and Flo

- Price: Iris: Every feature free; a one-time purchase removes ads. Flo: Free version, plus Flo Premium, a subscription.
- Privacy record: Iris: No Iris servers to share data from. Flo: FTC order in 2021 over sharing health data with Facebook and Google ([FTC, June 2021](https://www.ftc.gov/news-events/news/press-releases/2021/06/ftc-finalizes-order-flo-health-fertility-tracking-app-shared-sensitive-health-data-facebook-google)).

## What Iris covers

- Period predictions from your own cycles, with the next period counted forward from ovulation
- A likely window for irregular cycles and PCOS
- BBT chart with a coverline, and LH test logging
- Partner sharing, view only and end-to-end encrypted
- Two-way Apple Health sync, widgets and cycle-aware reminders
- Pregnancy, postpartum and hormonal contraception modes, and a PDF report for your doctor

## What Flo has that Iris doesn’t

Flo is a much bigger product, with a large library of expert articles and videos and an AI health assistant. If those are what you want, Flo is the better fit. Iris is for people who want a tracker that is complete, free and keeps their data to themselves.

## Moving over

If you have kept your periods in Apple Health, Iris reads them in. Otherwise enter your last few period dates on the calendar and predictions start from there.

## Questions

**Is Iris really free?** Yes. Every feature is free. A few ads pay for the app, and a one-time purchase removes them. There is no subscription.

**Is Iris on Android?** No. Iris is for iPhone and iPad.

Iris is not a contraceptive. Its predictions are estimates.