Official implementation for connecting to the Yggdrasil Network from Android
About this app
Yggdrasil is an early-stage implementation of a fully end-to-end encrypted IPv6 network. It is lightweight, self-arranging, supported on multiple platforms and allows pretty much any IPv6-capable application to communicate securely with other Yggdrasil nodes. Yggdrasil does not require you to have IPv6 Internet connectivity - it also works over IPv4.
This app allows you to connect to Yggdrasil Network and use any service located in this network. It works as VPN service, but all your usual traffic will go trough your provider, not through Yggdrasil Network.
Also, it is not a goal of the Yggdrasil project to provide anonymity. Direct peers over the Internet will be able to see your IP address and may be able to use this information to determine your location or identity. Multicast-discovered peerings on the same network will typically expose your device MAC address. Other nodes on the network may be able to discern some information about which nodes you are peered with.
All traffic sent across the Yggdrasil network is encrypted end-to-end. Assuming that our crypto is solid, it cannot be decrypted or read by any intermediate nodes, and can only be decrypted by the recipient for which it was intended. However, please note that Yggdrasil has not been officially externally audited.
Licensed under MIT, by Yggdrasil Developers.
What's New in v0.1-021
Imported from the F-Droid repository index.
- Updated core library to 0.5.13.
- Added peer validation on input.
Version history
Mar 15, 2026 · 21.2 MB · Android API 21–34 · code 21
Imported from the F-Droid repository index.
- Updated core library to 0.5.13.
- Added peer validation on input.
SHA-256 18b63b2548beb7dec8953a9b3571f753183fe64f880df3f71487c2abbf4b239b
Jan 13, 2025 · 19.2 MB · Android API 21–34 · code 20
Imported from the F-Droid repository index.
- Updated core library to 0.5.12, presenting these changes:
- Fixed
- A timing regression which causes a higher level of idle protocol traffic on each peering has been fixed
- Fixes in Android app
- Some UI fixes and improvements
- Updated some dependencies
SHA-256 11ca701f71ca02f7f3d32b1b5625fca16e0c678bbc9f271f0ea63f6b5295227a
Oct 27, 2024 · 19.2 MB · Android API 21–34 · code 19
Imported from the F-Droid repository index.
- Updated core library to 0.5.9, presenting these changes:
- Changed
- The routing algorithm has been updated with RTT-aware link costing, which should prefer lower latency links over higher latency links where possible
- The calculated cost is an average of the link RTT, but newly established links are costed higher to begin with, such that unstable peerings can be avoided
- Link costs are only used where multiple next-hops are available and will be ignored if there is only one loop-free path to the des
SHA-256 0845c069727324746fd5162c409a21559d2ae2e7d480b7e6f1c9a4cd798d1406
Will it run on your device?
87%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be eu.neilalexander.yggdrasil is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 0.1-020 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Yggdrasil first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Yggdrasil, and a listing is removed when the evidence for it stops holding up.
Get Yggdrasil
Every source we list for eu.neilalexander.yggdrasil is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
18b63b2548beb7dec8953a9b3571f753183fe64f880df3f71487c2abbf4b239b
Signing certificate
82253737237076693fab94c389c8223ee5106af7999e0bda3900d4f8564241c9
Permissions Required
What each permission lets Yggdrasil do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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