Not as a policy choice — as an architectural one. Zinfai runs on your machine with no server behind it. We hold an email address so you can download it, and nothing else.
Last updated: 14 August 2026
Zinfai is software you install and run yourself. Your holdings, transactions, expenses, income, liabilities, goals and plans are stored in a database on your own computer. We operate no backend that receives them, so we could not read your financial data even if we wanted to.
This website, www.zinfai.com, does have one account system: downloading an installer requires a free account with a verified email address. That account is for the download only — it holds your email, never your finances, and the app you install never signs in to it. There are still no tracking or analytics scripts on this site.
.env file.Zinfai reaches out to the internet for a handful of specific things. Each one is listed here so there are no surprises.
From the app: nothing. No telemetry, no crash reporting, no analytics, and no way for your financial data to reach us.
From this website, if you register for a download, we hold exactly this:
That is the complete list. We do not track which pages you browse, we set no advertising or analytics cookies, and we do not sell, rent or share any of it. The one cookie-equivalent in play is the sign-in token your browser stores to keep you logged in, which you clear by signing out.
Why we ask. So we can tell you when a security or data-correctness update ships, and so we know roughly who is running Zinfai. We do not run marketing campaigns off this list.
Who processes it. Sign-in and the account record are handled by Google Firebase (Authentication and Firestore) on our behalf. Verification email is sent through our email provider. The installer itself is served from GitHub, which logs the request under its own privacy policy. Our hosting and DNS providers process standard request logs (IP address, user agent, page requested) to serve and protect the site, as any website's do.
How long we keep it. For as long as you have an account. Ask us to delete it and we remove the account and its download history.
Writing to support@zinfai.com means we hold your email address and whatever you put in the message, for as long as it takes to help you. We don't add you to any list, and we don't share it.
Please never send passwords, API keys, full account numbers or an unredacted backup file. We will never ask for them.
The Android app is read-only and signs you in to nothing. The backup you import is kept in the app's private storage on the device, optionally behind a biometric lock, and can be erased with one tap in Settings. Its only outbound calls are to the same public market-data sources for live prices and news, and to Google Drive if you sync that way. There are no analytics or crash-reporting SDKs in it.
Running on your own machine means the safeguards are yours too. Keep your computer and disk encrypted, use a strong password for the app, and export backups regularly — if you lose the machine or delete its data volume, the data is gone and we have no copy to restore from.
By default the app listens on localhost only, so it isn't
reachable from your network. If you deliberately expose it, put it behind
authentication and HTTPS — that configuration, and its consequences, are yours.
None of that needs a request to us, because we hold none of it. For the download account we do hold, email support@zinfai.com and we will send you a copy of the record or delete it, whichever you ask for. Deleting it does not affect a copy of Zinfai you have already installed.
Zinfai is a tracking and planning tool for your own research and education. The AI planner and asset quality ratings are AI-generated and can be wrong. Zinfai is not a registered investment adviser, broker or tax adviser, and nothing in the app or on this site is a recommendation to buy or sell any security. Verify anything that matters, and consider a registered adviser in your own jurisdiction.
If this changes, the date at the top changes with it. If the change is significant and you have a registered account, we will email you about it.
Questions about any of this: support@zinfai.com.
Turn off Wi-Fi and Zinfai still opens, still shows your portfolio, still runs the numbers. Only the live prices go quiet.