Pyrolysis operations platform

Every tonne in. Every litre out.
Accounted for.

letni is the control room for your pyrolysis plant — feedstock, reactor runs, yields and margins in one place. So you're running the plant, not chasing it.

Acme Recycling · Dashboard
Live
Daily output · last 14 days2,340 L
Batch #1042 output mix
Pyrolysis oil54%
Carbon black32%
Steel14%
Yield41.2%
Revenue this month
$18,240
Today's output
1,180 L
Active batches
3
Uptime · 30D
94%
Multi-plant & multi-site·Batch-level P&L·Role-based approvals·30-day free trial
Why it matters

Two plants run the same feedstock through the same reactor.

One operator can tell you his cost per litre of pyrolysis oil to the penny, which batch under-yielded last Tuesday, and exactly when the condenser is due for service. The other is running on gut feel and a spreadsheet that went stale three runs ago.

Same equipment. Completely different business.

The plant is telling you something every hour it runs. letni is where you finally hear it.

What letni does

Everything a plant runs on — off the whiteboard and into one system.

Most pyrolysis operators run production on a whiteboard, feedstock on a notepad, and financials in a separate spreadsheet nobody reconciles until month-end. letni puts all three in one place, so a batch you log on the reactor floor shows up as inventory, yield, and revenue without anyone re-typing it.

Feedstock

Know what you're feeding it. Log every tonne — source, moisture, type, cost. When yields move, you'll know whether it was the reactor or the raw material.

Reactor runs

Every batch on the record. Temperature profile, residence time, operator notes, start to shutdown. No more "I think that run went long." You'll have the number.

Yields

Oil, char and syngas — per batch and per tonne. See which feedstock actually pays and which one's been quietly costing you. The split that used to live in someone's head now lives on one screen.

Margins

Cost in, product out, money made. Your real number, updated as the plant runs — not a figure you reconstruct at month-end and half-trust.

Maintenance

The condenser doesn't care that you're busy. Service schedules that chase you before a part fails, not after. Downtime you planned beats downtime that planned you.

Records & compliance

Every run logged, every figure exportable. When the auditor, the buyer or the investor asks for the numbers, you send them in a click instead of a week.

One source of truth

Close the mass balance before the shift ends.

letni ties every kilogram of tyres in to the oil, carbon black, and steel that comes out. When a batch's yield looks off, the floor knows immediately — not at month-end, buried in a spreadsheet.

Pyrolysis oil
Carbon black
Steel
Tyres in2,400 kg
Pyrolysis oil out980 L
Carbon black out620 kg
Steel out270 kg
Yield calculated automatically
The shift

Most plants are run from memory and a whiteboard.

It works — until the operator who holds it all in his head takes a day off, or you try to prove your unit economics to someone writing a cheque.

letni turns how your plant runs into something you can see, hand over, and improve.

Pricing

$299/month. The whole plant, one screen.

One reactor running blind for a week can cost you more than a year of letni. This isn't the expensive part of your operation — not knowing your numbers is.

PROFESSIONAL PLAN
$299/ month, 1 plant

Plus $129/mo per additional plant. Every feature included, unlimited team members.

Includes your first plant — $129/mo per additional plant
Unlimited team members, no per-seat pricing
Batch mass balance with automatic yield warnings
Inventory & storage tracking
Customer orders & invoicing
P&L and cost/profitability reports
Role-based team access & batch approvals
Start your 30-day free trial
ENTERPRISE — SITE & GROUP
$899+/ month

For multi-site operations that need rollups across sites and SSO.

Everything in Professional
Inventory & reporting rollups across sites
Single sign-on (SSO)
Priority support & onboarding
Contact Sales

Prices shown for the US, Germany, and most countries. Lower regional pricing is available for India, Southeast Asia, and Eastern Europe — you'll see your rate at signup.

FAQ

Questions plant owners actually ask.

What is letni?

letni is pyrolysis plant management software for tyre pyrolysis operations. It tracks batch mass balance (tyres in, oil, carbon black and steel out), inventory and storage, financials, and reporting in one system, instead of spreadsheets and whiteboards.

How much does letni cost?

The Professional plan is $299/month and covers your first plant, plus $129/month for each additional plant — team members are always unlimited and free. Operations running multiple sites can move to the Enterprise plan (from $899/month) for cross-site rollups and SSO.

Is there a free trial?

Yes. Every plan starts with a 30-day free trial, and you can cancel anytime before it converts to a paid subscription.

Do you offer regional pricing?

Yes. Pricing is lower for teams in India, Southeast Asia, and Eastern Europe — you'll see your rate automatically at signup based on your location.

Can letni manage more than one plant or site?

Yes. Plants can be grouped under shared sites so inventory and reporting roll up across your whole operation. Cross-site rollups and SSO are part of the Enterprise plan.

What does letni track for each batch?

Each batch records feedstock (tyres) in, and pyrolysis oil, carbon black, and steel out. Yield is calculated automatically, and a batch is flagged if its yield looks off compared to what's expected.

Who is letni built for?

Owners and operators running pyrolysis facilities who need production, inventory, and financials in one place — with role-based access so operators can log batches and owners can review them before they hit the books.

You already own the hard part.

The reactor's built. The feedstock's coming in. The only thing missing is a clear line of sight from what goes in to what you actually made — that's the whole job of letni.