Cost-based pricing — transparent, predictable, fair

You pay exactly what it costs us — plus 100%.

No hidden fees. No overcharging. No pay-per-feature. Every dollar is traceable to a real cost we incur running your workspace.

your_bill = max($5, actual_infrastructure_cost × 2)

We double our actual costs. That's our margin — it funds development so Atlantist keeps getting better.

$5/mo minimum floor — even dormant accounts cost us money to keep running.

Estimate your bill

Adjust the sliders to match your workflow — your projected bill updates instantly.

0102550
5 × $0.05 = $0.25
0 GB10 GB20 GB
0.5 GB × $0.25 = $0.13
11020
1 × $0.15 = $0.15
050100200
10 × $0.002 = $0.02
Estimated monthly bill
$ 0.50
per month
Compute (simulations) $0.25
Storage $0.13
Bandwidth (avg/user) $0.15
API calls $0.02
Hosting amort (base) $0.12
Raw cost $0.67
× 2 markup +
floor: max($5, raw × 2) = $0.50

What you're paying for

Compute

EnergyPlus energy simulations, OpenSees structural analysis, NIST FDS fire simulation, MEP HVAC/plumbing/electrical runs.

$0.05 / simulation run

Storage

PostgreSQL row storage — event ledger (every parameter change), model geometry, shadow page history, render assets.

$0.25 / GB / month

Bandwidth

WebSocket real-time sync, IFC/DXF/DWG/gbXML file exports, .rvt import transfers, live collaboration data.

$0.15 / user / month (avg)

3rd-party APIs

Autodesk Forge Model Derivative API (Revit .rvt import), Veras AI render API, OpenAI embeddings for forum moderation.

$0.002 / API call

Hosting

Render service — Node.js + PostgreSQL (Neon), WebSocket server, CDN assets, SSL certificates, maintenance.

$3.50 / month (base) ÷ active users

Our markup (100%)

Every dollar you pay above our actual costs is our revenue. It funds development, infrastructure, and support — no hidden games.

100% markup = 2× actual cost

Everything included — always

Full 3D BIM editor — walls, columns, doors, windows, stairs, railings
IFC 2x3 & IFC 4 import/export
Energy simulation (EN-001 to EN-008) + DOB filing
MEP: HVAC, plumbing, electrical runs
Floors, ceilings, rooms, grids, curved surfaces
Fire protection (NFPA 13/101/92) + FDS simulation
Geotechnical analysis + OpenSees export
Issue tracking, AI renders, design book, community forum
Annotations, dimensions, schedules, section views
All integrations — VERAS, Finch3D, Motif, Drive, Forma, Polycam

All integrations included — always

No tiered add-ons. No pay-per-feature. The cost you see is what you pay.

VERAS
Finch3D
Motif
Drive
Forma
Polycam

Questions

How is my actual bill calculated?+
Every day we track your real infrastructure usage across 5 categories: compute (simulation runs), storage (PostgreSQL bytes), bandwidth (file transfers + WebSocket), 3rd-party API calls (Forge, Veras), and hosting amort. At month end, we sum it all and multiply by 2. If you're on a yearly plan, we divide $330 by 12 and apply that as your monthly credit against actual usage.
What's the $5 minimum floor?+
Even dormant accounts cost us money to keep running — the database is still there, the service is still up. So we charge a $5/mo minimum regardless of actual usage. Active users effectively pay $0 for hosting since it amortizes across their simulation and storage costs.
What happens if my usage is very high?+
If total monthly infrastructure cost across all users hits $150/mo, our system automatically triggers a cost optimization analysis. We identify the top cost driver and generate engineering tasks to reduce it by 5-10×. You'll be notified of any changes that affect your billing. You always have the right to cancel if the model doesn't work for you.
Can I see my real-time cost?+
Yes — sign in and visit your account dashboard. You'll see a live month-to-date cost breakdown by category (compute, storage, bandwidth, API, hosting) plus a predicted bill for next month based on your last 3 months of usage.
What if I'm on a yearly plan?+
Yearly plans ($330/yr = $27.50/mo) pre-pay 12 months at a fixed rate. We track your actual usage and apply any credits to your next billing cycle. If your actual monthly cost is lower than $27.50, you keep the surplus. If higher, the difference is absorbed by the yearly discount.
Is the 30-day trial really free?+
Yes — no credit card required to start. You'll only be charged if you choose to continue after the trial ends. During the trial you'll see your actual running cost in your account so there are no surprises.
Can I change plans or cancel anytime?+
Yes — cancel anytime via the billing portal. Your subscription holds for 1 year, then your account enters a read-only hold before deletion. Reactivate anytime before deletion at no extra cost.
Do you offer team or enterprise pricing?+
Team collaboration is on the roadmap. For enterprise needs (SSO, dedicated support, custom integrations), contact us at support@atlantist.cloud. Enterprise accounts get a dedicated cost breakdown and custom pricing negotiations based on actual usage patterns.
Who owns the models I create?+
You do. All project data belongs to you. We don't claim any rights to your work. See our Terms of Service for details.