Honeydue (for Couples)

Money is the #1 cause of relationship stress, and Honeydue was built specifically to fix that. Both partners link their accounts, choose what to share (full transparency or partial visibility), set shared budgets, and coordinate bills. The chat feature lets you discuss transactions in-app — "Did you really spend $200 at Sephora?" becomes less accusatory when it's a comment on a categorized transaction. It's completely free, which removes the "should we split the subscription cost?" argument before it starts.