Flui
Tracking that fits you
$0.99 · Designed for iPad. Not verified for macOS.
Track what matters to you: cycle, symptoms, mood. Predictions and clear charts included. Your data stays yours. No ads, in German and English.
Flui is tracking that adapts to you — not the other way around.
Track your cycle, mood, symptoms, nutrition, and more in an app fully configured to your needs. No rigid categories, no defaults that don't fit.
BUILT FOR YOU
- Neurodivergent-friendly: clear structure, no sensory overload, your pace
- Queer-friendly: no binary assumptions, no exclusion
- Fully customizable: you choose what gets tracked — not the app
EVERYTHING IN ONE PLACE
- Cycle and symptom tracking
- Mood and wellbeing
- Nutrition and potential correlations
- Trying to conceive: keep track of fertile days
- Clear charts and trends
TOGETHER, IF YOU WANT
Share selected data securely with someone you trust — via a link only you control.
CLEAR ROLES
Flui calculates dates and shows patterns based solely on the data you enter. The app doesn't interpret, advise, or draw conclusions for you. What you do with the patterns is entirely your decision — together with a healthcare professional if needed. Flui is also not a contraceptive method and is not certified for pregnancy prevention.
YOUR DATA, YOUR SERVER
No corporate cloud. No ads. Your data stays yours.
Flui — simple, clear, for you.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This version fixes several issues in the cycle calculation:
• Cycle boundaries: A day now always belongs to exactly one cycle.
Previously the first bleeding day of a new cycle could wrongly appear
as the last day of the previous one in the charts. Cycle lengths and
predictions are now calculated correctly.
• Data import: Importing data from another app no longer wipes out an
ongoing cycle. Imported and existing entries are merged cleanly instead
of overwriting each other, and existing days are added to rather than
replaced.
• Sharing code: When offline, the app used to silently create a code that
the other person could not redeem. It now shows a clear message instead.
• Charts: With many cycles, the cycle length overview can be scrolled
sideways and stays readable.
The developer, Rebecca Lakomy, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- User Content
- Identifiers
- Sensitive Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Rebecca Lakomy
- Size
- 27.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Mature or Suggestive Themes
Contains
Messaging and Chat
User-Generated Content
Health or Wellness Topics
- Copyright
- © 2026 Rebecca Lakomy

