The August lock, or the year the key went digital
On May 29, 2013, at a technology conference in Rancho Palos Verdes, California, Jason Johnson held up a cylinder of machined aluminum and clipped it over the thumb turn of a deadbolt on a demo door. He put his phone in his pocket and walked toward it. The deadbolt turned. No key, no keypad, no code — just the phone, approaching.
The house key, at that moment, had been the same basic object for a hundred and forty-eight years. Linus Yale Jr. had patented the pin-tumbler cylinder lock in 1865, and every serrated brass key cut since then was a variation on the same idea: a physical token, for a physical machine, requiring its bearer to be physically present. By 2013, your boarding pass was a QR code, your taxi arrived in response to a tap on a screen, and your music had no physical form at all — but the thing that let you into your own house was still a small metal object you could lose in a coat pocket, copy at any hardware store, and never revoke short of calling a locksmith.
Johnson had co-founded August Home in San Francisco in November 2012 with the industrial designer Yves Béhar — known for the Jawbone Up fitness band and the OLPC laptop. Their core design decision was deliberate and a little cunning: the exterior of the door had to be left completely unchanged. Whoever still wanted to use a physical key could use a physical key. The August Smart Lock sat entirely on the inside, clipping over the existing thumb turn. It communicated over Bluetooth Low Energy — the same low-power radio protocol that runs wireless earbuds — so the phone in your pocket became the credential.
The dinner-party pitch was Johnson’s argument in miniature: send a guest a time-limited digital key through the app, let them in without being home, get a notification when they arrived. The same logic extended to Airbnb guests, dog walkers, and delivery services — anyone you’d normally hand a spare key and quietly hope to see again. A digital key could expire. It could be scoped to a single entry window. It would log every use, which a brass key had never done and could not be made to do.
The lock began shipping in August 2014 at $249, and arrived in Apple retail stores that October. A $38 million Series B in 2015 funded a doorbell camera, a guest keypad, and expansion to retail chains — the keypad quietly acknowledging that not everyone was ready to trade metal for radio. In October 2017, Assa Abloy — the Swedish company that also owns Yale — acquired August Home. Linus Yale Jr.'s corporate heirs bought the startup that had made Linus Yale Jr.'s lock optional.
What August proved was less about the lock mechanism than about what a key actually is: a grant of access, temporary and conditional only in theory. The digital version made the theory real. That same logic now runs in the NFC chip of every hotel badge, every Apple HomeKey tap, and every car that unlocks as you approach — a hundred and fifty years of brass, finally programmable.
Sources
- August Home — Wikipedia — founding history, product timeline, acquisition by Assa Abloy in 2017, and one million units sold by 2018.
- Yves Behar’s August Smart Lock Lets Users Open Doors With A Mobile App — TechCrunch — launch announcement at the D11 conference, product details, pricing, seed funding.
- Swedish lock giant Assa Abloy acquires smart lock maker August Home — TechCrunch — acquisition details and confirmation that Assa Abloy’s portfolio includes Yale.