1Password

Using the same password everywhere is the most common security vulnerability in the world — and 1Password has spent 18 years making the alternative painless. The app generates, stores, and auto-fills unique passwords for every site, synced across all devices. It stores credit cards, secure notes, SSH keys, and software licenses. The family plan ($5/mo for 5 users) is the most practical cybersecurity investment a household can make. 1Password hit $250 million ARR and a $6.8 billion valuation. The Watchtower feature alerts you to breached passwords. It's not exciting, but it's genuinely essential.