# Euki: A period tracker: log your cycle and sexual health, with your entries kept on your phone.

Canonical page: https://herfound.com/apps/euki

Compiled by HerFound from public sources; facts aren't founder-confirmed yet.

## About

Euki pairs a period tracker with a library of sexual and reproductive health information 🌸 Log bleeding and symptoms like cramps, acne and headaches on a calendar you can customise, and after about two months you'll see a cycle summary and predicted periods. You can read up on contraception, abortion, miscarriage and STIs, with quizzes and personal stories, and use the Care Navigator to find providers and support. Your entries stay on your phone, with an optional PIN and manual or scheduled deletion 🔒 It's free, in English and Spanish, and run by a US nonprofit.

## Who Euki is for

People who want to track their cycle and look up sexual and reproductive health information; the nonprofit says it builds for people facing barriers to care.

## Features

- 🗓️ Period and symptom tracking on a customisable calendar
- 🔮 Period predictions and a cycle summary after about two months
- ⏰ Appointment and medication reminders
- 📚 Information on contraception, abortion, miscarriage and STIs, with quizzes and stories
- 🧭 Care Navigator for finding providers and support organisations
- 🔒 Entries stay on your phone, with an optional PIN lock
- 🗑️ Delete your data manually or on a schedule
- 🌎 Available in English and Spanish

## Details

- Category: Cycle & Health
- Platforms: iOS, Android
- Pricing: Free
- Availability: Available
- Based in: United States
- App Store rating (Apple's, not HerFound's): 4.1 from 164 ratings, checked 2026-11-14

## Maker

- Euki, Inc.: https://eukiapp.org

## Quick facts

From Euki's own published pages. These summarise what the company states, not an audit of what the app does.

- **Free version:** There is a free version (The site describes the whole app as free to use).
  - Quote: "That’s why Euki is 100% free to use. You won’t find paywalls here."
  - Source: https://eukiapp.org/ (checked 2026-11-12)
- **Selling personal data:** Says it does not sell personal data (Stated in Euki's Privacy FAQs).
  - Quote: "Euki does not have any of your app data to share or sell, and even if we did—we wouldn’t!"
  - Source: https://eukiapp.org/privacy-faqs-resources (checked 2026-11-12)
- **Advertising:** Says it does not use or share personal data for advertising.
  - Quote: "The App does not track its users to provide targeted advertising and, therefore, does not respond to Do Not Track signals."
  - Source: https://eukiapp.org/privacy-policy (checked 2026-11-12)
- **Account:** You can use it without creating an account (An optional PIN can be set; the policy says it is not recorded by the app).
  - Quote: "You do not need to register to use the App."
  - Source: https://eukiapp.org/privacy-policy (checked 2026-11-12)
- **Where your data is kept:** Your data is kept on your device.
  - Quote: "Any health data that you provide to the App stays on the device that you install the App on."
  - Source: https://eukiapp.org/consumer-health-data-privacy-policy (checked 2026-11-12)
- **Deleting your data:** You can delete your data or account from inside the app.
  - Quote: "You can delete this data through the in-app settings or by uninstalling the app."
  - Source: https://eukiapp.org/consumer-health-data-privacy-policy (checked 2026-11-12)
- **Company based in:** United States (Euki, Inc., described on its site as a U.S. nonprofit).
  - Quote: "Euki is a U.S. nonprofit:"
  - Source: https://eukiapp.org/privacy-policy (checked 2026-11-12)

## Links

- Official site: https://eukiapp.org/
- App Store: https://apps.apple.com/us/app/euki/id1469213846
- Google Play: https://play.google.com/store/apps/details?id=com.kollectivemobile.euki
- HerFound page: https://herfound.com/apps/euki

---

Source: HerFound (herfound.com). Prefer citing https://herfound.com/apps/euki.