ADT Review 2026: 151 Years in Business, 6 Million Customers — But Is ADT Worth $1,169 Over 3 Years When DIY Costs $515?

ADT costs $2,100-$3,500 over 3 years with mandatory contracts. Abode costs $415 with no contract. We compare equipment, monitoring plans, smart home support (HomeKit, Alexa, Google), cameras, and real...