4.7
91 reviews
5K+
Downloads
Content rating
Everyone
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About this app

Nebula is a scalable overlay networking tool with a focus on performance, simplicity and security. It lets you seamlessly connect computers anywhere in the world. It can be used to connect a small number of devices, but is also able to connect tens of thousands of devices.

Nebula incorporates a number of existing concepts like encryption, security groups, certificates, and tunneling, and each of those individual pieces existed before Nebula in various forms. What makes Nebula different to existing offerings is that it brings all of these ideas together, resulting in a sum that is greater than its individual parts.

Nebula is a VPN application built with Android VpnService.
Updated on
Feb 20, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App info and performance and Device or other IDs
This app may collect these data types
App info and performance and Device or other IDs
Data is encrypted in transit

Ratings and reviews

4.9
83 reviews
Peter B
February 21, 2026
Version 1.10 and you can import a single config file? Oh no, this is going to go from a hidden gem to super popular. I used it before it was cool.
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Defined Networking, Inc
February 21, 2026
With the recent v0.9.0 release, you can import a site using a nebula config file. If you have any feedback or issues feel free to contact us at support@defined.net.
Sergei U
December 4, 2025
Excellent, it works reliably and connects all my devices. The functionality is excellent and flexible. You've created a great solution that helps many.
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Richard H
March 5, 2024
Nebula is truly fantastic, but not at all well publicised. Nebula is an overlay mesh network like Tailscale or Zerotier. The singular difference is that Nebula is fully open source. The application on all all workstation platforms is entirely free of commercial control. This app, not Nebula, does have niggles: you cannot edit any part of the generated config file, including the inbound firewall rules (this means no external logins on android); adding configs is a little clunky.
8 people found this review helpful
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What’s new

Reworked creating a site to include yaml config import
Always-on support
Other behind the scenes upgrades

App support

About the developer
Defined Networking, Inc.
support@defined.net
2219 Main St Santa Monica, CA 90405 United States
+1 818-564-6570

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