I built Wallet Sum after getting married and realizing most expense apps charge extra just to share a wallet with your spouse. It's designed for quick manual entry — categories are pre-loaded, so you can log a transaction the moment you open it. No paywalls. Every current and future feature is free. No subscription, no upsells — just a wallet limit for free accounts. Still early. Missing a lot. But if you want a simple tracker for personal or family use without paying for basics, give it a try.