SNIZ - Interest Rate Hopping

Content rating
Everyone
Content rating
Everyone
Learn more
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About this app

With SNIZ you keep track of your call money accounts, interest earnings, and tax exemption orders.

Strengths of the app: Everything stays local on your device — no cloud, no login or sign-up, no ads and no tracking... and all of that for free!

If you do rate hopping and hold accounts at several banks, it's easy to lose track:
- Which rate guarantee is about to expire?
- Have tax exemption orders been filed everywhere in the right amount?
- Was the interest payout booked correctly?
- What's my current overall return across all my call money accounts?

SNIZ answers these questions — no bank access, no data sharing, no sign-up - all "offline" on your device!

FEATURES
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› Account overview
All your call money accounts with bank name, interest rate, deposit amount, term end, and status at a glance. Active, cancelled, and already closed accounts are shown clearly. The dashboard shows total capital, average interest rate, and guaranteed annual returns across all banks.

› Rate guarantee reminders
Automatic push reminder before your rate guarantee expires, on the expiry day, and optionally 5 days after — so no account silently slips into the lower follow-up rate, and you can switch in time to get the maximum return!

› Manage tax exemption orders (in DE)
Enter tax exemption orders per bank and check them for completeness. SNIZ warns you if an active account is running without a tax exemption order. Joint assessment for married couples is supported. SNIZ calculates for you how high your tax exemption order should be. If you make deposits or withdrawals on a call money account, SNIZ reminds you to adjust your tax exemption order.

› Track interest payouts
When an account is closed, the interest is calculated for you up to the closing date. You can also adjust it manually if the interest actually paid by the bank differs.

› Tax overview
Interest earnings summarized by bank and tax year, matched against the tax exemption order granted. A helpful basis for your tax return and for keeping track of used or still available exemption volume.

› Security
Optional app access protection via fingerprint or Face ID. Secured with PIN and PUK.


PRIVACY
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Data you enter stays on your device and is stored locally only, with bank-grade encryption. SNIZ uses no tracking and does not share data with third parties. SNIZ does not read out bank data, does not connect to any banking interfaces, and requires neither a user account nor sign-up.


WHO IS SNIZ FOR?
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SNIZ is aimed at call money savers in Germany, Austria, and Switzerland who want to manage their call money accounts and tax information simply, clearly, and securely.

General info
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App languages: German, English
The app can be used for free, with no subscription required.
Updated on
Jul 24, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

What’s new

• "Daily" interest payout as an additional option alongside monthly, annual, and account-closure payouts.
Content rating
Everyone
Learn more

App support

About the developer
Samuel Suther
info@suther.de
Am Aschenkrug 72 41169 Mönchengladbach Germany
+49 176 78013804