Encrypted by default
AES-256 at rest, TLS 1.3 in transit. Your account is the only key to your data.
Privacy & data
Your gut data is yours. Always.
We treat health data with the seriousness it deserves: encrypted at rest and in transit, GDPR-compliant, never sold, never used to train external models.
Privacy is the product
A Gut Day was built in the EU under GDPR. Your meals, symptoms, toilet visits and diary entries belong to you. We see them only to compute your insights - never to sell, profile or train external AI models.
How A Gut Day helps
Built for this exact problem
Never sold, never shared
We do not sell, rent or share your data with advertisers, insurers or anyone else.
AI used responsibly
Photo analysis runs through privacy-respecting AI providers. We never use your data to train external models.
Delete in one tap
From settings. We purge all your data within 30 days, including backups.
Export any time
PDF and CSV exports are always free. Your data, your rules.
EU-hosted infrastructure
Servers in the EU under GDPR. No US data transfers without your explicit consent.
What we collect, plainly
- 1
Account data
Email and password only. No phone, no name required.
- 2
Your logs
Meals, symptoms, toilet entries, diary, optional health-app sync. All encrypted.
- 3
Anonymous usage
Aggregate, anonymous app stats to improve the product. Opt-out in settings.
- 4
Nothing else
No advertising IDs, no third-party trackers, no fingerprinting.
Frequently asked questions
- Where is data stored?
- EU servers under GDPR. We never transfer health data outside the EU without explicit consent.
- Do you use my data to train AI?
- No. AI inference (e.g. photo recognition) is stateless - your data is never used to train external models.
- What if I want everything deleted?
- From settings: tap delete. Your data is purged within 30 days including from backups.
- Can I see what you have on me?
- Yes - full export in PDF/CSV anytime, free of charge. GDPR Article 15 access right.
- Are you GDPR compliant?
- Yes. We are an EU-based service operating fully under GDPR including DPA, DPIA and right-to-erasure.
Privacy you can trust.
Start tracking with a service that treats your gut data with the seriousness it deserves.
Create your free account