Privacy Policy

Last updated: October 3, 2026

This Privacy Policy describes how Jan Ole Wellnitz ("we", "us", "our") processes personal data in connection with the SimpliBudget mobile application ("App") and this website. We are committed to protecting your privacy and handling your data in accordance with the EU General Data Protection Regulation (GDPR).

1. Controller

The controller responsible for data processing under Art. 4(7) GDPR is:

Jan Ole Wellnitz
Clemensstr. 30
49090 Osnabrück
Germany
simplibudgetapp@gmail.com

2. App Data

No personal data collection: SimpliBudget does not require an account or login. All data you enter — including budgets, expenses, categories, and settings — is stored exclusively on your device. Your budget and expense data is never transmitted to us or to any third party. The only exception is in-app purchase data, which is processed by RevenueCat solely to manage your subscription (see Section 5).

Export and Backups: If you choose to export or back up your data, it is stored in a location of your choice (e.g. local device, external storage, cloud service). We have no access to this data. We recommend reviewing the privacy policies of any third-party services you use for storage.

3. Website

Website Hosting — Firebase

This website is hosted by Google Firebase Hosting (Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA). When you visit this website, Firebase automatically processes your IP address and access data (browser type, date and time of access) in server logs for security and operational purposes.

Legal basis: Art. 6(1)(f) GDPR — legitimate interests in operating a secure and stable website.

Retention: Server log data is automatically deleted after a maximum of 30 days, unless retention for a longer period is required to investigate a security incident.

International transfer: Google LLC is based in the USA. Data transfers are carried out on the basis of the EU–US Data Privacy Framework (adequacy decision of 10 July 2023) or, where applicable, Standard Contractual Clauses. For more information, see Firebase's privacy information.

Cookies, Analytics, and Tracking

This website does not use cookies, local storage, tracking pixels, web beacons, or any analytics or advertising services. No information is stored on or read from your device beyond what is technically necessary to deliver the requested page. Consent under § 25 TDDDG is therefore not required.

Fonts

This website uses the Inter typeface, which is served directly from our own servers. No connection to third-party font services is made when you visit this website.

4. Email Contact

When you contact us by email (e.g. to report a bug, ask a question, or request a feature), we process the personal data you provide, which may include:

• Name
• Email address
• Device type
• OS version
• App version

Purpose: To respond to your enquiry and provide support.

Legal basis: Art. 6(1)(b) GDPR — processing necessary for the performance of a pre-contractual or contractual relationship; and Art. 6(1)(f) GDPR — our legitimate interest in providing customer support.

Retention: Emails and associated personal data are permanently deleted six months after your issue has been resolved.

Email provider: We receive and send emails via Gmail, a service of Google Ireland Limited (Gordon House, Barrow Street, Dublin 4, Ireland). Google therefore processes the content and metadata of your email.

International transfer: Google may also process this data in the USA. Transfers take place on the basis of the EU–US Data Privacy Framework, under which Google LLC is certified, or Standard Contractual Clauses. For more information, see Google's Privacy Policy.

5. In-App Purchases — RevenueCat, Apple & Google

RevenueCat: SimpliBudget uses RevenueCat (RevenueCat, Inc., 1032 E Brandon Blvd #3003, Brandon, FL 33511, USA) to manage in-app purchases and subscriptions. RevenueCat acts as our processor under a data processing agreement (Art. 28 GDPR) and processes the following data:

• A random, anonymous app user ID generated by the App
• Purchase history, including Apple receipts and Google purchase tokens, and subscription status
• Device type and operating system
• IP address, used to derive your approximate location (country)
• Time of last use

Legal basis: Art. 6(1)(b) GDPR — processing necessary for the performance of a contract (your purchase).

Retention: This data is stored for as long as it is needed to provide your purchases. You can request its deletion at any time by contacting us, unless statutory retention obligations apply.

International transfer: RevenueCat is based in the USA. Transfers take place on the basis of Standard Contractual Clauses. For more information, see RevenueCat's Privacy Policy.

Apple & Google: All purchases are processed through the Apple App Store (Apple Inc.) or Google Play Store (Google LLC) respectively. These companies act as independent controllers for payment processing and are subject to their own privacy policies. We do not receive your payment details.

6. No Automated Decision-Making

We do not carry out any automated decision-making or profiling as defined in Art. 22 GDPR.

7. Your Rights Under GDPR

As a data subject, you have the following rights under GDPR, which you may exercise free of charge by contacting us at simplibudgetapp@gmail.com:

• Right of access (Art. 15): You may request confirmation of whether we process personal data about you and obtain a copy.
• Right to rectification (Art. 16): You may request correction of inaccurate or incomplete personal data.
• Right to erasure (Art. 17): You may request deletion of your personal data where the legal requirements are met.
• Right to restriction of processing (Art. 18): You may request that we restrict processing of your data in certain circumstances.
• Right to data portability (Art. 20): You may request your data in a structured, commonly used, machine-readable format where processing is based on consent or contract.
• Right to withdraw consent (Art. 7(3)): Where processing is based on your consent, you may withdraw it at any time without affecting the lawfulness of prior processing.
• Right to lodge a complaint (Art. 77): You have the right to lodge a complaint with a data protection supervisory authority, in particular in the Member State of your habitual residence, place of work, or place of the alleged infringement. The supervisory authority responsible for us is:
  Die Landesbeauftragte für den Datenschutz Niedersachsen
  Prinzenstraße 5, 30159 Hannover, Germany
  lfd.niedersachsen.de

Right to Object (Art. 21 GDPR)

Where we process your personal data on the basis of legitimate interests (Art. 6(1)(f) GDPR) — this concerns the website server logs (Section 3) and email support (Section 4) — you have the right to object to this processing at any time, on grounds relating to your particular situation. We will then no longer process your data unless we can demonstrate compelling legitimate grounds that override your interests, rights and freedoms, or the processing serves the establishment, exercise or defence of legal claims. To object, email us at simplibudgetapp@gmail.com.

8. Changes to This Policy

We reserve the right to update this Privacy Policy at any time. The current version is always available on this page. We encourage you to review it periodically.