VOB Retter

VOB-Retter is the mobile app that allows construction and building contractors to record concerns according to VOB/B §4 Paragraph 3 directly on the construction site and document them as a clean PDF. Instead of paper clutter and subsequent rework, a complete concern report is generated in just a few minutes – including project reference, description, photo, GPS coordinates, and a timestamp. The result is immediately shareable and provides clear evidence for clients.

Why VOB-Retter? Construction sites are hectic, and important information can easily get lost. VOB-Retter brings structure to documentation and helps identify risks early on. This saves time, avoids disputes, and protects your position. At the same time, the process remains streamlined: few fields, clear selection options, and an instantly generated document.


Why VOB-Retter? Features at a Glance

- Capture project name and category

- Add description via keyboard or dictation

- Take, replace, or remove photos

- Automatically capture GPS coordinates and date/time

- Preview PDFs directly in the app

- Share PDFs with or without photos

- Add sender information and logo once

- Store locally on your device

- Export backups as a ZIP file for your own data security

How it Works

1. Create a case: Enter project name, category, and description.

2. Add evidence: Take a photo and capture GPS coordinates.

3. Generate PDF: Check the preview and share directly.

The app is designed so that you can capture all relevant information on-site without having to add anything later in the office. The PDF automatically includes the most important evidence and can be shared via email, messenger, or other systems. Thanks to its clear structure, the document remains easily understandable for clients or site managers.



``` Typical Use Cases

- Subsoil not as planned
- Dimensions or plans are incorrect
- Preliminary work is missing or defective
- Material delivery does not meet the specifications
- Weather/environmental conditions prevent proper execution

Added Value in Everyday Life
- Fast, standardized data entry without detours
- Reduced risk of forgetting or confusion
- Improved documentation through photos, GPS, and timestamps
- Immediate forwarding to the responsible parties
- Uniform documents across all construction sites

Offline & Robust
Even without an internet connection, you can create cases, save photos, and generate PDFs. The app works entirely locally and is designed for construction site workflows: large buttons, short paths, clear steps. The PDF file receives a unique name with project, date, and time, making it easy to find in email attachments or the download folder.

Edit and Share Again
Each case remains in the list and can be reviewed or edited later. The PDF can be regenerated at any time – with or without a photo. This ensures your documentation remains up-to-date, even if information is added later.

Practical Design

The interface is in German and focuses on the essentials. Clear fields and concise text guide you through the process. The goal is a reliable result, not additional paperwork.

Data Privacy and Control

All data is stored locally on your device. There's no account, no cloud obligation, and no automatic transfer. You decide what gets shared. The legal notice and privacy policy are linked within the app. You can delete your data or back it up at any time.

Who is the app for?

- Tradespeople and construction companies
- Site managers, foremen, and project managers
- Experts and appraisers

VOB-Retter is the fast track to a clean and accurate notification of concerns: structure, document, share PDFs – directly where you're working.

Note: The app supports documentation according to VOB/B (German Construction Contract Procedures, Part B), but does not replace legal advice. Content and wording should be adapted to the specific contractual and project situations.