Flo tracks your cycle. Phia watches over your pregnancy.
Flo is one of the most popular period and pregnancy trackers, with a pregnancy mode and a Premium plan. Phia is a licensed medical group you text, with a care team behind every message.
Key takeaway
Flo is strong for tracking and learning, and Premium adds a 24/7 Health Assistant and a symptom checker in some regions. Flo itself says it does not provide medical advice, diagnosis or treatment. Phia is medical care, with nurses and providers who step in.
An answer, or a care team.
Flo app
Who’s behind it
A warning sign
When it’s serious
After “call your doctor”
Referrals
Your privacy
Phia
Who’s behind it
A warning sign
When it’s serious
After “call your doctor”
Referrals
Your privacy
Based on publicly available information as of October 2026. Flo is a trademark of Flo Health. Phia is not affiliated with Flo Health.
Same words. A different answer.
Ask both about a headache at 34 weeks. One gives you good information. The other gets you care.
An example of how each one responds.
Phia answers first. A nurse steps in.
When it matters, a maternity nurse joins your thread. Day or night.
HIPAA
Compliant
Phia Health · Licensed in PA and DE
HIPAA compliant
Protected like a medical record.
General AI apps aren’t covered by HIPAA. Phia is a licensed medical group, so every message is part of your medical record and protected under HIPAA.
HIPAA compliant
Health information is stored, accessed and shared under HIPAA rules.
Clinical records, not app data
Conversations are kept as medical records by a licensed medical group.
Real clinicians behind it
Nurses and providers licensed in Pennsylvania and Delaware take over when something needs a person.
Who each is best for.
Flo app
Tracking periods, fertility and pregnancy week by week, with lots of expert content.
Phia
Pregnant and postpartum moms in Pennsylvania and Delaware who want a care team that acts when something looks wrong.
The bottom line
Keep Flo for tracking. Text Phia when you want a licensed care team that acts.
Common questions.
Does Flo give medical advice?
No. Flo’s App Store listing says it does not provide medical advice, diagnosis or treatment, and recommends consulting a qualified healthcare professional.
What does Flo Premium add?
Per its App Store listing, Premium adds personalized insights, expert-led videos, a 24/7 Health Assistant, Secret Chats and a symptom checker in some regions.
Can I use Flo and Phia together?
Yes. Phia works by text, so there’s nothing to install, and it doesn’t replace the apps you already like.
Sources: Flo: Period & Cycle Health, Apple App Store listing, accessed October 2026.
Start with one text.
Available in Pennsylvania and Delaware, in any language. Phia is not an emergency service. If you need help now, call 911.