Compare software

MetroVault vs Envoy: catalog facts
MetroVault	Envoy
Best for: Bitcoin holders who want cold storage without buying a hardware wallet	Best for: Bitcoin holders who want simple self-custody, especially Passport owners
Free Free and open source under the GPL-3.0 licence.	Free Free app; the Passport hardware wallet is sold separately.
Android	Android, iOS
Keys stay on an offline device PSBT signing over QR codes All 4 strengths for MetroVault Keys stay on an offline device PSBT signing over QR codes Multi-signature and Silent Payments support Reproducible builds on F-Droid	Self-custody with no personal details needed End-to-end encrypted Magic Backups All 4 strengths for Envoy Self-custody with no personal details needed End-to-end encrypted Magic Backups Hot and cold accounts in one app Open source
Needs a separate phone kept offline for real air-gapping Requires a watch-only wallet on another device All 3 limitations for MetroVault Needs a separate phone kept offline for real air-gapping Requires a watch-only wallet on another device Small project with a single main developer	Bitcoin only Cold-storage features need a Passport device
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License not stated
No account needed	No account needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for MetroVault metrovault.app github.com/gorunjinian/MetroVault f-droid.org/packages/com.gorunjinian.metrovault Catalog checked October 2, 2026	Official website Full listing and sources Sources for Envoy foundation.xyz/envoy Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.