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PayNoWay

Name: PayNoWay
Author: Charles Hill

Charles Hill

Bitcoin wallet app made to test payment systems against double-spend attacks.

Internet
FOSS
Free
No ads
No tracking

Android only

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Get it on F-Droid Get it on GitHub

What are these stores? F-Droid, GitHub

Double-spending is no longer a theoretical possibility but a practical reality. Most of the end-user applications used widely today leave their users vulnerable to being defrauded via double-spend attacks. PayNoWay is a tool that you can use to test the applications that you, or your business, depend on to accept on-chain cryptocurrency payments.

Developer: Charles Hill
Source code: github.com/samotari/paynoway
Added to AppCosmos: 10 October 2026
License: GPL-3.0-only