SimpliSafe is the most-tested apartment alarm system for renters in 2026. We installed it. We tested it. We moved it to a second apartment. It mounts with peel-and-stick adhesive. It runs without a contract. It packs into one box for the move to the next address. The right SimpliSafe package depends on your apartment size and entry-point count. The Foundation ($249.96, 4 pieces) fits studios under 900 square feet. The Essentials ($279.95, 6 pieces) fits 1-bedroom apartments. The Hearth ($399.91, 9 pieces) fits 2-bedroom apartments. SimpliSafe monitoring runs from $0 (self-monitoring) to $79.99 per month (Pro Plus). Every plan cancels any time. No contract obligation. Quick Comparison: SimpliSafe Packages for Apartments We tested each SimpliSafe package below in real rental apartments. The table ranks them by apartment size and entry-point coverage. Every SimpliSafe package installs with peel-and-stick adhesive. Every package runs month-to-month. Every package moves to your next apartment with no transfer fees. Why SimpliSafe Works for Apartments SimpliSafe was built for renters. The founders started the company in 2006 after their friends in Cambridge got burglarized. The traditional alarm companies refused to serve renters back then. SimpliSafe filled that gap. We tested SimpliSafe across three apartment types: a studio,