Genuine non-custodial custody, a completely open codebase, privacy defaults most wallets never attempt, active maintenance through v2.6.0, distribution through the vendor's own F-Droid repo, and a track record with zero incidents of any kind. On the trust axes that decide whether a self-custody wallet deserves your keys, Stack is top-tier. However, no dApp browser, no hardware pairing, no on-ramp, no staking, and an app-level backup locked to Stack's own ecosystem — these limit who the wallet is for, and the missing third-party audit is the one true trust deduction on the sheet. This signals a narrow, well-built tool with clean hands, not a product with problems. For its niche — private, multicoin, no-KYC self-custody — it is an easy recommendation.