European alternatives to Stardust.

US-headquartered cycle-tracking app with privacy focus.

2 EU alternatives · 2 countries · All in Cycle-tracking

Why switch from Stardust?

The most common reasons buyers tell us they're moving to an EU alternative.

CLOUD Act exposure

US authorities can compel non-EU providers to hand over data even when stored on EU servers — incompatible with strict data-sovereignty contracts.
DPAs & CJEU rulings

Multiple EU DPAs have ruled that data transfer to the US violates GDPR Article 44 without further safeguards.
Procurement requirements

Many EU public-sector and regulated tenders now require EU-jurisdiction software and data residency. Tools listed here meet those requirements out of the box.
Vendor diversity

Reducing dependence on a small number of US hyperscalers and SaaS providers is a strategic goal across many EU governments and enterprises.

Showing 2 European alternatives to Stardust

Period and cycle tracker logging 30+ health categories with science-based predictions

Hormone-free contraception app pairing basal-temperature data with a fertility algorithm

Browse alternatives to other commonly-used non-EU products.