Privacy
What pregnancy apps know about you
A due date is health data. Here are the questions to ask any app, including ours.
Paul · August 24, 2026 · 5 min read
A pregnancy is one of the few moments when your buying habits change almost overnight. That is exactly what makes this data valuable, and why so many apps are free.
The GDPR treats pregnancy data as health data, in a special category. That does not mean nobody collects it.
Questions to ask any app
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Where does my data live: on my phone, or on their servers?
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Can the company technically read what I write?
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What happens if I delete my account? Is it a real deletion?
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Are there third-party advertising or analytics SDKs in the app?
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Can I export what I wrote and leave?
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If it is free and ad-free, who is paying?
What "encrypted" means
Almost every app says it encrypts your data. Usually that means encrypted in transit, and encrypted at rest on a server whose key they hold. That helps against a stolen disk. It does not stop them reading.
End-to-end encryption means the key never leaves your devices, and the company cannot read your data even if it wanted to, even if it were asked. The difference is enormous and the word is the same.
The real question is not whether it is encrypted, but who holds the key.
Our answer
Bulle has no account. Your data stays on your phone. What syncs between you and your co-parent is end-to-end encrypted with a key we do not have. We cannot read what you write. There are no ads, no third-party SDKs, and the app is bought once.
You do not have to take our word for it: ask us the six questions above, and ask everyone else too.