# This Period-Tracking App Actually Keeps Your Data Private
Period-tracking apps collect intimate health information about your body, fertility patterns, and cycle timing. Most sell or share that data with advertisers, insurers, or third parties. Euki operates differently.
Euki stores all menstrual data directly on your phone instead of uploading it to company servers. You never need to create an account or provide an email address. The app generates no profile that marketers can target or insurers can access. This local-storage approach means your cycle information stays physically on your device.
Health privacy advocates have raised alarms about traditional period trackers. After the 2022 Dobbs decision on abortion access, privacy experts warned that cycle data could potentially be subpoenaed or used against women seeking reproductive healthcare. Flo, one of the largest period-tracking apps with 100 million users, faced lawsuits over data-sharing practices.
Euki addresses these concerns head-on. Without cloud syncing, the company cannot access your information even if requested. You maintain complete control over what happens to your reproductive health data. The tradeoff: you cannot sync across multiple devices or back up your data to a cloud account.
For parents teaching teen daughters about menstrual tracking, Euki offers peace of mind. Your child's cycle information stays private from tech companies. The app includes features for tracking symptoms, mood, energy levels, and flow intensity. It works offline, so no internet connection is needed.
This matters because privacy breaches in period tracking disproportionately affect women and girls. Advertisers have used menstrual data to sell tampons and pregnancy tests. Employers theoretically could access cycle information through data brokers. Euki eliminates those pathways entirely.
The app is available on iOS and Android, free to download, with an optional paid version that