FAQ and support
Answers for private health AI.
Practical answers about privacy, encryption, AI processing, medical boundaries, payments, and account support.
Privacy and your data
How Catina Health keeps personal health data out of our servers and out of third-party AI systems.
How is this different from just uploading my data to ChatGPT?
ChatGPT and other standard cloud AI tools process uploaded files on provider infrastructure, where retention and model-training use are governed by that provider's product settings and policies. Catina Health is designed differently: your health files stay local and encrypted on your device, and AI analysis runs through a Trusted Execution Environment (TEE) so raw health data is not exposed to our servers or an external AI provider.
Do you store my health data?
No. Blood results, genetic files, and other health data live locally on your device, encrypted by default. We do not send or retain that health history on Catina Health servers.
Who can access my data?
Only you. Not our team, not infrastructure operators, and not third parties. The product is designed so we do not hold the raw health data that would let us inspect it.
What is a TEE and why does it matter?
A Trusted Execution Environment is a hardware-backed isolated area where code can run separately from the rest of a system. It matters because the privacy boundary is technical, not only contractual. TEEs are used in security-sensitive hardware contexts, including some payment and device-security systems, but the exact assurance depends on the implementation and attestation. We avoid claims like 'government-grade encryption' because that phrase is vague.
Can my data be used to train AI models?
No. Because your health data is not retained on our servers and is not sent to an external AI provider as training material, there is nothing for us to train on. This is a technical design choice, not only a policy promise.
Will you ever sell my data to third parties?
Never. We do not store individual health data, so there is no health history to sell. Our business model is based on subscriptions, affiliate partnerships, and B2B licensing, not data monetization. If research contribution is ever offered, it will be a separate explicit opt-in that you can withdraw.
What happens to my data if I cancel my subscription?
Your account profile and community posts may remain unless you request deletion. Since we do not store your health data, there is no server-side health history for us to delete. You can request full account deletion at any time by emailing support@catina.box.
Security and encryption
Exporting, restoring, and recovering encrypted data across devices.
How do I move my data to another device?
Go to Settings and export your encrypted data file, then import it on your new device. When you log in, your data decrypts automatically without manual key handling. If you enabled a custom passphrase with passlock, you will need that passphrase to decrypt on the new device.
What happens if I lose my passphrase?
If you set a custom passphrase and forget it, we cannot recover it because we never hold it. You will need to re-upload your original files, such as blood PDFs or genetics files. We strongly recommend backing up your encrypted data file and storing your passphrase in a password manager.
Medical guidance
What Catina Health can and cannot replace.
Is this a replacement for my doctor?
No. Catina Health helps you understand your data and have more informed conversations with your healthcare provider. It is not a diagnostic or clinical tool. Always consult a qualified professional before changing medication, treatment, or care plans.
Payments and subscriptions
Plans, crypto checkout, and subscription options.
How do payments work?
Explorer is free forever. Optimizer and Biohacker are paid plans that activate after checkout confirms your payment. You can extend an active plan or upgrade to a higher plan from your account.
How do I pay?
Checkout supports USDC wallet payments on supported EVM chains and Bitcoin invoice payments. Card payments are planned.
Can I pay monthly or annually?
Yes. Optimizer is $25 per month or $180 per year. Biohacker is $50 per month or $360 per year. Annual plans save 40% compared with paying monthly.