Wallet of satoshi rebuilt on top of spark wallet. It has absolutely horrifying privacy properties. Like 1000x worse than their old custodial lightning architecture. They just publish everyone's transaction data publicly. Kind of astonishing for a 'bitcoin' company, honestly. The tradeoff is that they have offline receive to static addresses with stablecoin support. My recommendation is don't fuck with WoS. Just say no. It's a ticking time bomb. I have other thoughts but I haven't seriously inspected the architecture. I suspect spark wallets are going to get absolutely rekt when fees go up again. Like a repeat of the first lightning winter when plebs were getting force closed right and left but even worse due to spark's design.