Terms of Use for the Niffl App
Provider:
Crewz GmbH
Paul-Ehrlich-Straße 7
79106 Freiburg im Breisgau
Germany
1. Scope
These Terms of Use govern the relationship between Crewz GmbH (hereinafter “we” or “us”) and the users (hereinafter “you”) of the mobile application “Niffl”.
By using the app, you agree to these Terms.
2. Description of Services
Niffl is a mobile application for managing and splitting shared expenses (e.g. within groups).
Core features are available free of charge. Additional optional paid features may be unlocked via in-app purchases.
There is no entitlement to specific features or a certain scope of functionality.
3. Registration and User Account
Certain features require registration.
Authentication is handled via email verification (e.g. code or magic link) using Firebase Authentication.
You are responsible for providing accurate information and must not share your account with third parties.
4. Groups and Shared Usage
The app allows users to create and manage groups and invite others via a link or code.
Within groups, the following information may be visible to other participants:
- Name
- Expenses
- Amounts and assignments
You are responsible for only sharing data you are allowed to share.
5. In-App Purchases and Subscriptions
The app offers optional paid features.
a) One-time purchases
One-time purchases grant access to specific features without automatic renewal.
b) Subscriptions
Some features may be unlocked via subscription.
After cancellation, access remains available until the end of the paid period
Subscriptions renew automatically unless canceled before the end of the current billing period
You can manage or cancel subscriptions in your App Store account settings
6. Payment Processing
Payments are processed exclusively through the respective app store (Apple App Store or Google Play Store).
We do not receive or process payment data, only confirmation of purchase status.
7. Right of Withdrawal and Refunds
For digital content, the right of withdrawal may expire in accordance with applicable laws once performance has begun.
Refunds are handled exclusively according to the policies of the respective app store (Apple or Google).
8. User Obligations
You agree:
- not to misuse the app
- not to circumvent technical protection measures
- not to copy, distribute, or make available any part of the app without authorization
You are responsible for backing up your data.
9. Availability and Changes
We reserve the right to modify, expand, or discontinue the app or individual features at any time.
There is no entitlement to continuous availability of the app or specific features.
10. Liability
We are fully liable in cases of intent and gross negligence.
In cases of slight negligence, we are only liable for breaches of essential contractual obligations and limited to foreseeable damages.
Liability for data loss, loss of profit, or indirect damages is excluded to the extent permitted by law.
11. Data Protection
The processing of personal data is carried out in accordance with our Privacy Policy.
12. Termination and Deletion
You may delete your account at any time.
We reserve the right to suspend or delete accounts in case of violations of these Terms.
13. Applicable Law
The laws of the Federal Republic of Germany apply, excluding the UN Convention on Contracts for the International Sale of Goods.
The place of jurisdiction is Freiburg im Breisgau, where legally permitted.
14. Final Provisions
If any provision of these Terms is or becomes invalid, the remaining provisions remain unaffected.
15. Contact
Crewz GmbH
Paul-Ehrlich-Straße 7
79106 Freiburg im Breisgau
Germany
Last updated: April 01, 2026
Crewz GmbH
Crewz 