How Enterkey compares

Buzzer apps all do one thing at the core: they give your apartment buzzer a phone number that reaches you anywhere. They differ in what happens next. Some only forward the call. Others, Enterkey included, can unlock the door on their own with timed keys, PINs and schedules, share one buzzer across a household, and greet visitors with a recorded message.

Each comparison below covers pricing, automation, sharing, and who should pick which. Competitor details are checked against their public sites (the date is on each page); confirm current pricing with them before you decide. Building-wide systems such as ButterflyMX are a different category: the landlord installs them, and residents cannot choose them alone, so that page explains when each makes sense.