Now made for iPhone Duo: half open, your categories stand on the fold as columns. Plan recurring costs and keep every number on your iPhone. No account, no ads.
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4Budget is a simple personal budget app. No account, no subscription, no ads — just a clear, focused tool for your monthly finances. Everything stays on your iPhone.
Half open, the fold becomes the axis of your budget: categories, payment days and the forecast stand on it as columns, numbers and controls lie below. Fully open, every tab shows two pages side by side, and folding keeps your place. from version 2.3
The dashboard shows how much of your income is left, with a utilization ring, plus income, expenses and savings and a category breakdown, all in one view.
Add rent, insurance, subscriptions, groceries — anything that leaves your account regularly, from every month up to every 120 months. 4Budget converts each one to a monthly cost, so you always know where your money goes.
See upcoming payments on a monthly calendar. Tap a day to see exactly which expenses are due, so nothing catches you off guard.
The Monthly Cost view shows 6-month and 12-month forecasts with your peak and lowest month, a financial snapshot and an annual projection.
See your spending by category in a donut chart, your top 5 expenses, your budget utilization and quick stats.
Mark each category as expense or savings for an honest picture: not only what goes out, but what you put aside.
Create PDF reports of your dashboard, your yearly expenses and your expense list. Export to CSV for spreadsheets. Create and restore backups any time; the app also makes one automatically about once a week.
Choose from more than 140 world currencies. On a fresh install, 4Budget starts with your region's currency. Create custom categories with your own colors.
4Budget is built for people who want a no-nonsense budget tool without the complexity of full-blown finance apps. Your data, your device, your budget.
Every update, every improvement — documented here.
What's New in 4Budget 2.3
Your data stays on your device. Always.
Effective Date: October 14, 2026
Developer: Robert Poetzsch
Contact: support@robspace.de
Robert Poetzsch ("we," "us," or "our") built 4Budget as an application. This Privacy Policy explains how we handle information when you use our mobile application 4Budget ("the App").
Controller within the meaning of the GDPR is Robert Poetzsch, email support@robspace.de. The postal address is in the Impressum (legal notice) on this website.
4Budget is designed with a strict privacy-first approach. Through the App, we do not collect, store, transmit, or process any personal data whatsoever. The App operates entirely on your device with no server-side components.
The App stores the following data exclusively on your device, in the App's local settings storage (UserDefaults):
• Your monthly income
• Your recurring expenses (name, amount, payment interval, next payment date, category, optional end date, active or inactive)
• Your categories (names, colors, and whether a category counts as savings or as expenses)
• Your selected currency
• Your theme setting
• Technical markers: the date of the last automatic backup, whether the default categories have already been created, and the App version for which the "What's New" notes were last shown
Backup files: Backups are stored as files (.4budget) in the Backups folder inside the App's Documents folder on your device. A backup contains your expenses, categories, monthly income, currency and theme setting, plus the date it was created and the App version. The App creates an automatic backup at most once a week and keeps the six most recent automatic backups. You can also create backups manually, export them via the iOS share sheet, restore them and delete them.
The App uses your device's language and region settings to display text, amounts and dates and, on a fresh install, to preselect your region's currency. These settings are read on your device only.
This data never leaves your device unless you explicitly choose to export or share it (as a PDF or CSV file, or by sharing a backup file). You decide in the iOS share sheet where an exported file goes.
Through the App, we do not collect: personal information (name, email, address, phone number), usage analytics or behavioral data, device identifiers or IP addresses, location data, or any form of telemetry.
The App does not integrate any third-party services, including but not limited to: analytics or tracking tools, advertising networks, crash reporting services, or social media SDKs.
The App does not require any network connectivity. It operates entirely offline. The App itself does not send any data to, or receive any data from, any external server.
In Settings, the App contains links to GitHub ("Report a Bug", "Suggest a Feature", "Discussions", "All robspace Apps on GitHub") and a link to the iOS Settings app ("Language"). A link only opens when you tap it: the GitHub links open in your web browser, the language link opens the iOS Settings app. The App itself does not send any data in the process. When you visit GitHub, GitHub's privacy statement applies.
The App does not collect personal information from anyone, including children under the age of 13. The App is safe for use by individuals of all ages and is compliant with the Children's Online Privacy Protection Act (COPPA) and similar regulations.
We do not share any App data with third parties because we do not collect any data through the App. There is no personal information, usage data, or analytics data to share, sell, or disclose.
Since all data is stored locally on your device, the security of your data is managed by your device's built-in security features (such as device encryption, passcode, and biometric locks). We recommend keeping your device software up to date to benefit from the latest security protections.
This website is hosted by Hetzner Online GmbH on a server in a data centre in Falkenstein, Germany. When you open a page, the web server automatically logs your IP address, the date and time, the requested page or file, the HTTP status, the number of bytes transferred, the referring page (referrer) and your browser’s user agent. These logs are used solely to operate and secure the website; the legal basis is Art. 6(1)(f) GDPR (legitimate interest in secure, stable operation). They are deleted automatically after 14 days at the latest, are not analysed and are not passed on unless required by law.
The website sets no cookies, uses no analytics or tracking and embeds no content from third parties. Only your language choice is kept in your browser’s local storage, and not for tracking. Fonts are served from this server; no connection is made to Google Fonts or other font services.
Since we do not collect or store any personal data through the App, there is no such data for us to provide, modify, or delete. If you wish to remove all App data from your device, simply delete the App. Backup or export files that you have saved elsewhere (for example in the Files app) are not affected and must be deleted there.
You have the right of access, rectification, erasure, restriction of processing, data portability and objection (Art. 15–21 GDPR). Because we do not collect any personal data through the App, there is nothing from the App we could disclose, correct or delete; questions are still welcome at support@robspace.de. You have the right to lodge a complaint with a data protection supervisory authority, for example the Hessian Commissioner for Data Protection and Freedom of Information (HBDI). If you are a California resident, you are entitled to the rights granted under the California Consumer Privacy Act (CCPA); as we do not collect any personal data through the App, these rights are inherently fulfilled.
We may update this Privacy Policy from time to time. Any changes will be reflected by updating the "Effective Date" at the top of this document. We encourage you to review this Privacy Policy periodically. Your continued use of the App after any changes constitutes your acceptance of the updated Privacy Policy.
If you have any questions or concerns about this Privacy Policy, please contact us at:
Robert Poetzsch
Email: support@robspace.de
This Privacy Policy was last updated on October 14, 2026.
Robert Poetzsch
Brückenstr. 8A
65719 Hofheim am Taunus
Germany
Email: support@robspace.de
We are not willing or obliged to participate in dispute resolution proceedings before a consumer arbitration board.
In accordance with Article 30 of Regulation (EU) 2022/2065 (Digital Services Act), we declare that we act as a trader within the meaning of EU consumer protection law when offering 4Budget through the Apple App Store.
As a service provider, we are responsible for our own content on these pages in accordance with § 7 (1) DDG under general law. According to §§ 8 to 10 DDG, however, we are not obligated as a service provider to monitor transmitted or stored third-party information or to investigate circumstances that indicate illegal activity. Obligations to remove or block the use of information under general law remain unaffected. However, liability in this regard is only possible from the time of knowledge of a specific infringement. Upon becoming aware of such violations, we will remove the content immediately.
Our offering contains links to external third-party websites over whose content we have no influence. Therefore, we cannot assume any liability for this external content. The respective provider or operator of the linked pages is always responsible for the content of the linked pages. The linked pages were checked for possible legal violations at the time of linking. Illegal content was not recognizable at the time of linking. However, permanent monitoring of the content of the linked pages is not reasonable without concrete evidence of an infringement. Upon becoming aware of legal violations, we will remove such links immediately.
The content and works created by the site operator on these pages are subject to German copyright law. Duplication, processing, distribution, and any kind of exploitation outside the limits of copyright law require the written consent of the respective author or creator. Downloads and copies of this page are only permitted for private, non-commercial use. Insofar as the content on this page was not created by the operator, the copyrights of third parties are respected. In particular, third-party content is identified as such. Should you nevertheless become aware of a copyright infringement, please inform us accordingly. Upon becoming aware of legal violations, we will remove such content immediately. The fonts used on this website (DM Sans, Outfit, JetBrains Mono) are licensed under the SIL Open Font License 1.1 and are served from this website.
Last updated: October 14, 2026