Start free. Upgrade when your coatings outgrow it. Every paid plan is month-to-month — cancel any time and keep access to the end of the period.
Trying it out
No card required
Individual engineers
or $529/year — saves 10%
Working coating engineers
or $1,609/year — saves 10%
Coating teams & production
or $6,469/year — saves 10%
Prices in USD. Annual billing saves 10%. Taxes may apply. Only the Professional plan includes a free trial.
These are the limits the software actually enforces, not a marketing summary.
| Feature | Explorer | Starter | Professional | Enterprise |
|---|---|---|---|---|
| Designs | 1 | 3 | Unlimited | Unlimited |
| Layers per design | 5 | 15 | 50 | 100 |
| Cloud autosave & backup export | Yes | Yes | Yes | Yes |
| Custom materials | — | 5 | Unlimited | Unlimited |
| Coating chambers | — | — | Unlimited | Unlimited |
| Design optimizer | — | Target point | Full | Full |
| Reverse engineer from a scan | — | — | Yes | Yes |
| Measured CSV upload | — | — | Yes | Yes |
| Recipe tracking | — | 25 runs | Unlimited | Unlimited |
| Chamber sync & tooling calibration | — | — | Yes | Yes |
| Optical monitoring runsheets | — | — | Yes | Yes |
| Monte Carlo yield analysis | — | 1,000 trials | Unlimited | Unlimited |
| Layer sensitivity analysis | — | — | Yes | Yes |
| Multi-substrate & angle targets | — | — | Yes | Yes |
| Angles of incidence | 0° | to 60° | to 60° | to 60° |
| Illuminants | D65 | All five | All five | All five |
| Absorption | — | Total | Total & by layer | Total & by layer |
| Admittance, E-field, phase & GDD | — | — | Yes | Yes |
| Lumi help (features, physics, support) | 5 questions/day | 25 questions/day | Unlimited | Unlimited |
| Lumi AI on your design | — | $19/mo add-on | Included | Included |
| Team workspace | — | — | — | 5 seats included |
| Works offline | Yes | Yes | Yes | Yes |
You keep working. The application installs to your machine and opens with no connection; your current session is stored on the device, and the physics — transfer matrix, optimizer, colour, yield — runs locally rather than on a server. Work saved during an outage uploads by itself when the connection returns. See how it works offline.
Only the account that created them. Not your teammates, not your team administrator, and not us. Equipment data — chambers, tooling factors, calibrations — is shared across your team on purpose, because a chamber is one physical machine. Full detail in our security overview and privacy policy.
Only if you say so. The Lumi assistant is off until you agree to it, and letting it see your layer stack is a separate question you answer explicitly and can turn off at any time — Lumi still answers general thin-film questions without receiving your recipe. Nothing is used to train AI models.
Any time, and you keep access to the end of the period you have paid for. We do not refund partial periods, which is why the Professional plan has a 7-day free trial — evaluate it before you are charged.
Add them at $69/mo or $749/year each, from inside the app. Enterprise includes 5.
Ask. Write to support@cor-stellaris.com and tell us what you are working on.
The free plan needs no card. If you want the optimizer and runsheets, Professional has a 7-day trial.
Open OptiCoat Designer