Privacy Policy
Last updated: 10 October 2026
By using Zenfiday, you agree to this Policy.
1. Data we do not collect
Zenfiday is built local-first: no account, no sign-in, no bank connection. We do not collect:
- Your name, phone number, location or contacts
- Your bank or payment information
- Accounts or login credentials, because the App does not require an email or an account
- Data that tracks how you use the App
Zenfiday has no ads, and we do not sell, rent or share your personal data, because we do not have it. The one exception, the email you give when signing up for early access on our website, is covered in “Early access sign-up on the website” below.
Zenfiday is not intended for children under 13, and we do not knowingly collect data from children.
2. Where your data lives
Everything you enter into Zenfiday, including expenses, categories, monthly budgets and notes, is stored on your device, in the App’s private storage managed by the operating system. We have no server that stores your financial data and we keep no copy of it, so there is no retention period for App data on our side, and no consent to withdraw within the App.
This data is used only on your device to calculate how much you can spend each day, suggest categories when you use Quick Add, and show your overview and spending plan. It is protected by your operating system’s security, and we recommend turning on a screen lock for your device. Spending reminders (turned on or off in Settings) are notifications created on your device and do not pass through any server.
Because your data lives only on your device, it may be permanently erased if you uninstall Zenfiday, lose your device or reset it, and we cannot recover it. You can export your data to a CSV file in Settings to keep your own copy.
You are in full control of your data: view and edit any expense in the App, delete individual expenses, or delete everything via Settings → Delete all data, or by uninstalling the App.
3. Network connections
In normal use, Zenfiday does not need a network connection and works fully offline. Zenfiday is currently free, so there are no payment transactions. If a paid version is offered in the future, transactions will be handled by Apple / Google under their own policies, and we will not see your payment information.
4. AI features
Category suggestions for your expenses run entirely on your device: keyword matching, your personal transaction history on the device and, on supported devices, Apple’s on-device AI model. What you enter is never sent to any external AI service.
5. Early access sign-up on the website
This section applies only if you sign up for early access on the Zenfiday website. The App itself does not require an email or an account.
When you sign up, we store the email address you enter, the time you signed up and the time you agreed to this Policy, along with your phone type (if you choose one) and the page language. To prevent spam, we briefly keep your IP address as a one-way hash with a secret key, used only to limit repeated sign-ups, and delete it after 24 hours. Your email is used only to let you know when Zenfiday is ready for you to try and to send a few important related updates. We do not sell or share it for marketing. We keep your email until you unsubscribe, or for up to 3 months after we send the launch announcement, or 12 months from the date you signed up if Zenfiday has not launched yet, whichever comes first. After that, we delete your email.
The list is stored on servers run by Hostinger, our website hosting provider. Hostinger stores it only on our behalf, and the list is completely separate from the data in the App. Access to the list is restricted to the person responsible on our team. We send emails manually from hello@zenfiday.com, without third-party email marketing tools and without open or click tracking.
You can unsubscribe, or ask to view, correct or delete your email at any time by replying to one of our emails or writing to hello@zenfiday.com. We handle unsubscribe and deletion requests within 72 hours of receiving them, and requests to view or correct within 7 days.
6. Policy changes
If this policy changes, we will update the date at the top of this page and, for significant changes, let you know through an app update or on our website.
7. Contact
If you have any questions about this privacy policy, we are always happy to answer.