Track your savings accounts, interest rates, and tax exemptions — all in one place.





ZinsJäger is your personal manager for overnight deposits, fixed deposits, checking accounts, and custody accounts. Keep track of current and guaranteed interest rates, optimize your Sparerpauschbetrag (tax-free savings allowance), and never miss a tax certificate again. All data stays on your device — no server, no cloud.
No. ZinsJäger is free to use. There are no subscriptions or in-app purchases.
All data is stored locally on your device. ZinsJäger does not use any servers or cloud services.
Toggling the married switch doubles the tax-free savings allowance from 1,000 EUR to 2,000 EUR, as per German tax law for joint filers.
Your question is not listed?
Write to us. We usually reply within one or two days.
Do you have questions, problems, or feedback regarding the app? Write to our support team.
Terms of Use & Legal Notices
Platform-Specific End User License Agreements (EULA):
If you acquired this App through the Apple App Store, unless regulated otherwise herein, the acquisition and use of the App are governed by Apple's Standard Licensed Application End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
If you acquired this App through the Google Play Store, the Google Play Terms of Service apply in addition to these terms: https://play.google.com/about/play-terms/index.html
We are not willing or obligated to participate in dispute resolution proceedings before a consumer arbitration board.
Disclaimer of Liability
Despite careful development and review, we do not guarantee the accuracy, completeness, or timeliness of the presented content (e.g., interest rates, tax-free allowance calculations, or tax certificate status).
ZinsJäger does not constitute tax or investment advice. The calculation of the Sparerpauschbetrag is based on user-provided data and may not reflect your actual tax situation. Responsibility for correctly allocating Freistellungsaufträge lies with the user. The email addresses and websites stored in the app have been maintained to the best of our knowledge, but errors cannot be excluded. Do not share confidential information that could grant others access to your accounts or custody accounts.
The app is intended exclusively for personal financial tracking and organizational purposes. The use of the app is at your own risk. We assume no liability for damages arising from the use of the app, and it is not a substitute for professional tax or financial advice.
Privacy Policy for ZinsJäger
Last updated: November 11, 2026
ZinsJäger does not connect to your bank. Your accounts, interest rates, and tax information stay on your device, and reminders are scheduled there too. No account, no server of ours.
The app does not need an account, and we do not run any servers where your data could end up.
Everything you create (account details, interest rates, tax certificate status, and settings) stays on your device.
The app uses local notifications to remind you when an interest rate guarantee expires or when you may qualify as a new customer again. These notifications are scheduled entirely on your device; no data is sent to any server or push notification service.
You get the app through the Apple App Store. Apple is responsible for download, payment, and updates; we have no access to that data. Apple's privacy policy applies: https://www.apple.com/legal/privacy/
If you have turned on "Share with App Developers" in the iOS settings, Apple provides us with anonymous crash reports and usage statistics. They do not identify you.
The app is also available on Google Play. Google is responsible for download, payment, and updates there; we have no access to that data. Google's privacy policy applies: https://policies.google.com/privacy
Whatever happens only on your device or in your private iCloud does not reach us; we do not process that data.
If you e-mail us, we process your address and message to answer you (Art. 6(1)(b) GDPR for questions about a purchase, otherwise Art. 6(1)(f) GDPR).
What the app stores on your device stays there until you delete it in the app or remove the app. Data in your iCloud can be deleted in your device's iCloud settings.
We delete e-mails to us once your request has been resolved, unless statutory retention obligations apply.
You have the right to access (Art. 15 GDPR), rectification (Art. 16), erasure (Art. 17), restriction of processing (Art. 18), data portability (Art. 20), and to object to processing based on legitimate interests (Art. 21). You can withdraw consent at any time with effect for the future (Art. 7(3)).
Since we do not keep accounts and the app does not identify you, we often cannot attribute data to a person (Art. 11 GDPR). Write to us anyway; we are happy to help.
You can lodge a complaint with a data protection supervisory authority (Art. 77 GDPR), for example the one responsible for us: the data protection authority of Lower Saxony (LfD Niedersachsen), Prinzenstraße 5, 30159 Hannover, Germany, https://www.lfd.niedersachsen.de
Nikita Aurelian Schulz (PODSchu). The full address is in the legal notice (Impressum) on this page.
For questions about data protection: contact.schulzpod@gmail.com
FakeSchu GmbH
Max Mustermann
Hauptstr. 42
10115 Berlin
info@noreply-trap.invalid
+49 30 00000000
VAT: DE000000000