Knows how the system works. Won’t guess when it doesn’t.
Built by a working tech who got tired of guessing. It works from how your vehicle’s system actually works, not a copied manual, so it reasons about your truck and not some other one. When it isn’t sure, it says so, tells you what to check, and won’t green-light tearing into something it can’t stand behind.
I built this for my own work.
Sharing it because it works.
I got tired of guessing. The information that tells you how a system really works is hard to come by and priced like it. So every diagnostic tool I tried would rather make something up than admit it didn’t know. A procedure that doesn’t fit my build year. A spec pulled from thin air. That’s not a wrong sentence. It’s eight wasted hours, a torn-down assembly, a comeback I eat. So I built one that works from how the system actually works, and shuts up when it isn’t sure. I ran it on my own trucks until I trusted it. Now I’m opening it up.
How the system works. Not how the dealer labeled it.
Give it the vehicle and the complaint. It reasons about how that system actually operates on your truck: what each part does, how it all connects, what should happen when it’s working right. It won’t assume your vehicle works like a different one, and it won’t state a number it can’t stand behind. Where it’s short on something, it says so and asks you.
It either clears the line, or it doesn’t. No middle ground.
Above the line, you get a precise next step and the reason for it. Below it, it tells you exactly what’s missing, and won’t recommend tearing into anything it can’t stand behind.
“Cold-side intercooler boot, lower clamp. Smoke test localizes leak to clamp seam at the throttle-body joint.”
“Cat replacement not on the table yet. Need post-cat O₂ under warm cruise; that reading’s missing.”
One plan. Per technician. No bundles, no seat-haggling.
We don’t sell shop tiers or platinum bay-fleet packs. One account, one tech, one month. The price is close to what it costs to run this well. Enough to keep the lights on, not what we could get away with. Scale it by hiring; cancel it when you don’t.
Vyntechs Bay
A single technician seat. The full diagnostic, the full confidence line, your full session history. Cancel anytime; your sessions stay yours.
What every seat includes
What we deliberately aren’t.
Most diagnostic “assistants” are a general chatbot with a wrench-shaped icon, or a stale code-lookup table. Here’s how we measure against what techs actually replace.
Honest answers, no marketing fluff.
Does it actually refuse, or just nag me with a warning?
It refuses. Below the line, the destructive-action button is gone — not greyed out, not behind a confirm modal. Gone.You’ll see what’s missing and what reading would unlock the action. No way around it short of changing the threshold (which is logged).
Does it need my shop’s history to be useful?
No. It works from how the system operates from day one. The work you close just makes it sharper over time.
Why no shop or enterprise tier?
Because seat-haggling rewards the wrong thing. One tech, one account, $100/month. If your shop has eight techs, that’s eight accounts at $800. If two of them quit, that’s $200 less. Honest math, no salesperson.
Does it ever make the call for me?
Never. It shows you the next step and the reasoning; the call is yours. Every call is your name, your timestamp.
What scan tools does it integrate with?
None directly. No cable to Autel, Snap-on, Launch, or anything else today. You tell it what the scan tool shows, or snap a photo of the screen. Direct capture’s on the list.
Where does my data live?
US data center, encrypted at rest, never sold. Formal compliance certifications (SOC 2, etc.) aren’t done yet — we’re straight about that. If you need a signed DPA before you subscribe, ask.
Will it work for European, JDM, or fleet diesel?
Depends on the vehicle. It’s strongest where a system is well understood; on thinner ground it tells you it’s reasoning from general principles instead of pretending it’s sure. Domestic and the big Japanese makes are solid.
What does “still in beta” mean?
It means onboarding is by invite for now, the surface is still moving, and you’re subscribing to a working tool we’re hardening in real shops. If a critical bug hits you, we hear about it that day. If something you need is missing, ask — we may have it sooner than a polished company would tell you.
Stop guessing.
$100 per technician, per month. One account, one path in, no salesperson on the other side. Bring one stubborn vehicle. If it doesn’t change how you work, cancel — your sessions stay yours, always.