GitHub for hardware.
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Engineering collaboration, simplified.
Every revision carries the reasoning that produced it. See what changed, who decided, and why, across drawings, models, and supplier handoffs.
Ship hardware like software.
The why never leaves.
Every change captures the intent, the options weighed, and the tradeoff made, linked to the version it shipped in. The thinking stays when the person leaves.
Design reviewReview the model, not a slide deck.
Open a review like a pull request. Comment right on the geometry and settle it in context, not across twelve reply-all emails.
Visual diffNever build the wrong version.
Compare any two versions with the change highlighted on the geometry itself. It is obvious before it reaches the floor, not after the scrap report.
Single source of truthThe latest is never in doubt.
Every part and assembly is versioned. The current one is always obvious, and nothing dies in a shared drive.
Supplier handoffSend a link, not an email chain.
Suppliers open the model and your notes in a browser, no CAD license. Their DFM feedback lands in the same thread, not a new one.
Built-in approvalsNo change ships unapproved.
Role-based gates show who signed off and when. No enterprise seats, no six-month rollout.
Works with the tools you already use.
Kyumi reads from the tools your team already lives in and pulls every decision into one source of truth, automatically.
KyumiFrom wherever the decision happened, into the record.
Blade pitch 5.0 → 5.5 in · Hub bore ⌀6.0 → ⌀6.35 mm · +0.4 mm root fillet
Linked to: Prop_6x5 · vC (production tool)A revision decision buried in an inbox is one nobody can act on. Kyumi lifts it out of the thread and onto the part before the wrong file reaches the floor.
The problem, in their words.
"It was mostly PowerPoint presentations and word of mouth..."
"You take a major pivot, and the whys get muddied..."
"...come on guys, put the reason for the change in there."
"You send a supplier an email and you don’t know if they’ve looked at it..."
The problem, by the numbers.
of late-stage design errors are preventable with better design review
of design-review feedback is never tracked or addressed
of teams see product launches delayed by late-stage design changes
project delays are caused by miscommunication
Source: CoLab, "Quantifying the Impact of Design Review Methods on New Product Development," 2023/24. Survey of 250 engineering leaders.
What changes when it all lives in one place.
"See exactly what changed. Reviews take a third of the time."
"The reasoning behind every change lives somewhere permanent."
"We stopped kicking off work on the wrong revision."
"A link instead of an email chain changed how we work."
Start free. Scale when you're ready.
One place for every revision, decision, and approval. Pay only for the collaborators who create and approve.
For solo builders and hobbyists.
Join WaitlistScaling the team without the version chaos.
Join WaitlistIn production, where a wrong revision costs real money.
Join WaitlistStop chasing the latest version.
Give your hardware team one source of truth for every design change.