A binder for paper logbooks circa 1958. We can do better.
Yolog was started by three pilots, two of whom had lost a logbook the hard way. We're building the record system general aviation should already have had.
In 2023, our cofounder Marcus parked his 1968 Cessna 182 in a hangar at KGXY and lost the logbook three weeks later in a hangar fire. Forty-six years of maintenance history — gone in an afternoon. The reconstruction took eleven months, $6,200 in mechanic time, and a courtroom-grade ladder of affidavits to satisfy the FSDO. The aircraft was grounded for most of it.
The wild part: every entry in that book had been signed by a real, traceable mechanic, working at a real shop, on a real date. The information existed everywhere — in shops' carbon copies, in mechanics' personal logs, in the FAA's own AD compliance database. It just wasn't in any one place anyone could prove.
We started Yolog because the binder full of carbon paper is not a serious tool for tracking a $200,000 asset. The world has cryptographic timestamps now. The world has the FAA Airmen Registry as an API. The world has the right ingredients to make a logbook that cannot be lost, smudged, forged, or held hostage. We just had to assemble them.
Four principles, written on the wall.
We won't charge mechanics.
The minute we monetize the people doing the work, we've broken trust with the entire industry. Yolog is owner-paid, forever. Mechanics get a free single-use link, full stop.
Your records survive us.
Our incorporation docs include a continuity trustee. If Yolog ever winds down, every customer's signed archive is released as a verifiable bundle. No hostage situation. Ever.
We don't sell data.
We never sell, share, or rent customer data. Not aggregate maintenance trends. Not anonymized AD compliance rates. Not anything. Your records exist for you and your buyers — that's it.
The paper book remains primary.
Yolog is in addition to the wet-ink logbook, never instead of it. We refuse to lobby the FAA to displace paper. Mechanics keep their workflow; owners get the digital twin.
Three pilots, building for pilots.
Previously product at Stripe and DocuSign. PPL since 2014, instrument since 2018, lost-and-rebuilt-the-logbook since 2023. The reason this exists.
Crypto-systems engineer, formerly Cloudflare. Glider rating, lapsed Cessna 152 partner. Built our hash-chain spec on a flight back from Reno-Stead.
Spent 31 years in shops at KFNL and KGXY. Joined to make sure we never ship anything that makes a mechanic's day worse. The reason this is mechanic-friendly.
Yolog by the numbers.
Want to work with us?
Hiring engineers, A&Ps for concierge migration, and a head of partnerships. Mostly remote, US-based, ATC-friendly hours.
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