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TERMS OF USE ​

Bäume in Wien - Community Tree Map

Date: March 13, 2026 | Version: 1.1

1. SCOPE ​

These Terms of Use govern the use of the "Bäume in Wien" app (hereinafter "App") and its community features. By using the App, you agree to these terms.

Provider: Paul Niederle Vienna, Austria Email: support@treesinvienna.eu

2. SERVICE DESCRIPTION ​

The App offers the following features:

  • Tree Map: Interactive map of all 230,620 city trees in Vienna (Data source: City of Vienna Open Data, CC BY 4.0)
  • Community Trees: Users can report trees not included in the official registry
  • Tree Rally: Gamified tree discovery
  • Favorites & Notes: Personal tree collection
  • AR Mode: Augmented reality view (Beta)

The App is free, ad-free, and contains no in-app purchases.

3. REGISTRATION & ACCOUNT ​

3.1 Account Types ​

  • Without account: Full access to map, favorites, notes, rally (local features)
  • With account: Additionally report, confirm, and flag community trees

3.2 Registration ​

  • Email address and password, or OAuth (Google/GitHub)
  • Email verification required
  • Minimum age: 16 years (under 16 with parental consent)

3.3 Account Security ​

  • You are responsible for your account security
  • Passwords must be at least 6 characters long
  • If you suspect misuse: Change your password immediately and contact us

4. COMMUNITY TREES ​

4.1 Reporting Trees ​

  • Community trees are user-reported trees not included in the official tree registry of the City of Vienna
  • The location must be as accurate as possible (GPS or map selection)
  • The tree species should be specified to the best of your knowledge
  • Reported trees are visible to all users

4.2 Confirming Trees ​

  • Logged-in users can confirm the existence of community trees
  • Each user can confirm a tree only once
  • Confirmations increase the credibility of an entry

4.3 Flagging Trees ​

Users can flag entries that:

  • Have an incorrect location
  • Specify the wrong tree species
  • No longer exist
  • Constitute spam or abuse

4.4 Verified Trees ​

  • Trees with sufficient confirmations or trees reported by official accounts receive "Verified" status
  • The official "Bäume in Wien" account is identified by a verification badge

5. CODE OF CONDUCT ​

5.1 Permitted ​

  • Report trees honestly and accurately
  • Confirm trees you have actually seen
  • Flag incorrect entries via the report function
  • Use the App for educational purposes (school classes, excursions)

5.2 Prohibited ​

  • False reports: Intentionally reporting wrong tree locations or species
  • Spam: Multiple identical or meaningless entries
  • Manipulation: Artificially confirming your own entries (e.g., with multiple accounts)
  • Abuse: Offensive, inappropriate, or illegal content in comment fields
  • Automation: Bots or automated mass entries
  • Reverse engineering: Decompilation or modification of the App to the detriment of others

5.3 Consequences ​

In case of violations, we reserve the right to:

  • Remove individual entries
  • Temporarily suspend the account
  • Permanently delete the account
  • Take legal action in severe cases

6. INTELLECTUAL PROPERTY & OPEN SOURCE ​

6.1 Open Source License ​

  • The app "Bäume in Wien" is an open-source project
  • The source code is available on GitHub: github.com/Baume-in-Wien
  • The use, modification, and redistribution of the source code is governed by the respective license in the repository
  • Contributions to the project are welcome

6.2 Third-Party Data and Licenses ​

  • Tree registry data: City of Vienna (data.wien.gv.at), licensed under CC BY 4.0
  • Map data: © OpenStreetMap contributors, ODbL
  • Wikipedia content: Wikimedia Foundation, CC BY-SA 3.0 / 4.0

6.3 User Contributions ​

  • Community tree entries are licensed under CC BY 4.0
  • You retain copyright to your photos and notes
  • By uploading, you grant us a simple, non-exclusive, royalty-free right of use to display the content within the app and to operate the service

7. LIABILITY ​

7.1 Availability ​

  • The App is provided "as-is"
  • We do not guarantee uninterrupted availability
  • Maintenance may be performed without prior notice

7.2 Data Accuracy ​

  • Tree registry data originates from the City of Vienna and is displayed unchanged
  • Community tree entries are created by users and may contain errors
  • We assume no liability for the accuracy of location or species data

7.3 Limitation of Liability ​

  • We are not liable for damages arising from use of the App, to the extent permitted by law
  • This applies in particular to damages caused by incorrect location data
  • Liability for intent and gross negligence remains unaffected

8. DATA PROTECTION ​

The processing of personal data is described in our Privacy Policy.

Summary:

9. TERMINATION & ACCOUNT DELETION ​

  • You can delete your account at any time (in the App under Settings)
  • Your community tree entries remain anonymously (the display name is removed)
  • Personal data (email, profile) will be deleted within 30 days
  • Local data (favorites, notes) remain on your device and can be deleted manually

10. CHANGES TO TERMS OF USE ​

  • Changes will be announced in the App and on the website
  • Continued use after changes constitutes acceptance
  • Significant changes will be communicated via email or in-app notification

11. APPLICABLE LAW ​

12. CONTACT ​

For questions about the Terms of Use: Email: support@treesinvienna.eu Subject: "Terms of Use - Bäume in Wien"

Last updated: March 13, 2026