Last updated: 10 July 2026
Flusii is a personal budgeting app. Your financial data lives on your device. We don't sell your data, we don't run ad trackers, and our AI never receives information that identifies you. We earn money only from the optional subscription — not from your data.
Flusii ("we", "us"), based in Denmark, is the data controller for the limited processing described below. For privacy questions, contact us at Flusiiapp@gmail.com.
When you use the AI features, the app sends only the text needed to answer your question to our secure AI service. Before it leaves your phone, identifying details (such as your name and city) are removed, and our server additionally redacts emails, account numbers and long digit sequences before the request reaches the AI model. The AI therefore does not know who you are. Requests are transmitted over encrypted connections (TLS).
If you choose to sign in, your data can be backed up to the cloud (via Google Firebase and/or your iCloud) so you can restore it on a new device. This is entirely optional — the app works fully without an account, keeping everything on-device. You can sign out and delete your data at any time.
If you use the Family feature, the incomes, expenses and goals you choose to share are made visible to the family members you invite, through our secure cloud (Google Firestore). Only items you deliberately share are included, and only the members of your family group can see them. You can stop sharing or leave the family group at any time.
Flusii does not connect to your bank. Account balances are entered manually, or imported by you from a CSV file you export from your own online bank. We never see your bank login.
The optional Premium subscription is handled entirely by Apple through the App Store. We never receive or store your card details. Apple's processing is governed by Apple's privacy policy.
We keep external processing to a minimum. When you use the optional features below, a small amount of data is processed on our behalf by these providers, each under a data processing agreement:
We do not use any analytics, advertising or tracking providers.
Some optional services involve providers in the United States — namely Groq and Cloudflare (AI processing) and Google and Apple (cloud backup, sign-in, payments). Where personal data is transferred outside the EU/EEA, it is covered by appropriate safeguards such as the EU–US Data Privacy Framework and/or the European Commission's Standard Contractual Clauses.
On-device data stays until you delete it. You can reset and erase all data from inside the app at any time, including your cloud backup and account. Under the GDPR you have the right to access, correct, delete, restrict or port your data, and to object to processing. To exercise these rights, contact Flusiiapp@gmail.com.
You can permanently delete everything yourself, at any time — no request needed:
This permanently erases all of your data: everything stored on your device and your cloud backup and your account (the email and user identifier held by our sign-in provider). Nothing is kept afterwards, there is no additional retention period, and deleted data cannot be recovered.
From the same screen you can instead erase only your on-device data, or leave a shared family group, while keeping your account. If you would rather we do it for you, email Flusiiapp@gmail.com from your account address and we will delete your account and associated data.
Flusii is not directed at children under 13, and we do not knowingly collect data from them.
We may update this policy as the app evolves. The "last updated" date above reflects the current version.
Questions about your privacy? Email Flusiiapp@gmail.com.