Privy on Solana mobile Privy owns the user : a durable account identifier and a JWT a backend can verify. Mobile Wallet Adapter owns the keys . Privy signs nothing in this setup — every signature still comes from the wallet app. Sign-In-With-Solana joins the two. Privy generates a message, MWA signs it, Privy exchanges the signature for a session. Reach for this when an app needs a stable user record across devices, a server-verifiable session, or login methods beyond a wallet. An app that only needs a connected address does not need Privy — use the skill alone. Android only, and a developmen…