PinkyBloom vs Stardust: Period Privacy After Roe v. Wade

Stardust gained millions of downloads in the wake of the Dobbs decision by marketing itself as a privacy-first period tracker. The messaging resonated with users who were suddenly concerned about their menstrual data being used against them. But Stardust's own actions tell a different story.

In June 2022 — the same month the Dobbs decision was leaked — Vice/Motherboard discovered that Stardust's privacy policy stated it would cooperate with law enforcement requests "whether or not legally required." For a post-Roe privacy app, this was the worst possible policy: voluntary cooperation with police requests for menstrual data. Stardust only changed the wording after Motherboard asked about it.

Then in May 2025, Privacy International's investigation revealed deeper architectural concerns. Stardust doesn't keep data on your device — it sends data to its servers and relies on Rownd, a third-party de-identification service, to strip identifying information. De-identification is a process, not a guarantee. Academic research has demonstrated that menstrual cycle data can be re-identified with relatively few data points, especially when combined with other information.

Stardust also requires a Google account to sign up, immediately linking your menstrual tracking to Google's identity ecosystem. PinkyBloom requires no account of any kind. Your cycle log is stored on your phone, not in an account on our servers.

Stardust differentiates itself with astrology-themed cycle insights, blending period tracking with horoscope-style content. While this creates an engaging user experience, the actual health intelligence is relatively basic — standard cycle predictions and symptom tracking without advanced AI capabilities.

PinkyBloom offers a fundamentally different level of intelligence. The AI assistant uses your health data to generate personalized insights, cycle predictions, and mood forecasts. Voice logging lets you describe symptoms naturally and the AI extracts structured health data. The doctor visit report generator creates professional summaries for healthcare appointments.

The difference is substance vs. style. Stardust wraps basic tracking in astrology aesthetics. PinkyBloom delivers genuine AI-powered health intelligence — mood forecasting, multi-symptom analysis, and natural language understanding.

Cambiar de Stardust a PinkyBloom es rápido y fácil. Abre la vista de calendario de Stardust, toma una captura de pantalla y utiliza la función de Importación de Capturas de Pantalla de PinkyBloom. El motor OCR extrae automáticamente tu historial de ciclos.

Para los usuarios que descargaron Stardust específicamente por la privacidad posterior a Roe, cambiar a PinkyBloom es especialmente importante. Mientras Stardust comercializa la privacidad, su arquitectura aún depende del almacenamiento en la nube y la desidentificación de terceros.

Después de importar tus datos, considera eliminar tu cuenta de Stardust y revocar su acceso a tu cuenta de Google. Dado que Stardust requiere inicio de sesión de Google, eliminar esa conexión asegura que tus datos menstruales ya no estén vinculados a tu identidad de Google.

Both Stardust and PinkyBloom are free, so the comparison isn't about price. Stardust offers basic period tracking with astrology-themed content. PinkyBloom offers an AI assistant, voice logging, mood forecasts, doctor visit reports, encrypted partner sharing, home screen widgets, and a health vault with Face ID.

The feature gap is enormous. PinkyBloom includes capabilities that most paid period trackers don't offer, let alone free ones.

For users who chose Stardust because of its privacy messaging, PinkyBloom needs no account and never sells your data. And you get significantly more features in the process.