Watchdog
Trust your app, without the tech headache
Check your app’s integrity with one upload
Reproducible build monitoring
What Are Reproducible Builds?
Reproducible Builds make software transparent and verifiable.
They allow anyone to rebuild an application from its source code and obtain exactly the same result bit for bit.
This means that the app you download can be proven to come directly from the original source, without hidden modifications or tampering.
For security-critical tools, like messaging or privacy apps, reproducible builds provide strong assurance that the software truly protects your data, free from backdoors, injected malware, or unauthorized changes.
How Watchdog Helps
Here, we automatically verify that officially published applications match their publicly available source code.
Even if you downloaded an app from another source, you can upload it to confirm that it matches the verified official build so you can use it with confidence and peace of mind.
This website is a proof-of-concept implementation on the secure messaging app Threema