FAQ
Answers for shop owners and installers. If you still have a question, use the contact form.
How do credits work?
You spend 1 credit when you enter windows (and groups if desired) and hit Optimize / Build your cut plan.
That 1 credit unlocks all results for that same job input: single-roll, multi-roll, and roll size selection inside the modal.
You can reopen the modal, change roll size, switch modes, and view options without spending another credit.
When do I spend a credit?
You're charged 1 credit when you enter windows (and groups if desired) and hit Optimize / Build your cut plan.
What does one credit include?
That 1 credit gives you access to all modes/results for that same job input (single + multi + any roll size selection).
You can reopen the modal, change roll size, switch modes, and view options without spending another credit.
When do I spend another credit?
You spend another 1 credit only if you change job inputs (add/remove windows, change dimensions, change quantities) and run again.
What's the "window sizes / job" limit?
It's the maximum number of unique window size rows you can include in a single optimization. If you have repeats, use quantity.
If you hit the limit, split the job into phases (for example by floor, elevation, or room group).
What's the difference between single-roll and multi-roll?
Single-roll: plan the job on one roll width.
Multi-roll: split a job across multiple rolls/widths to reduce waste or match real inventory.
What are "Custom rolls"?
Custom rolls let you enter the roll widths you actually have (and optional remaining lengths) so the plan is built around film on hand.
This is the Shop-tier differentiator and helps reduce over-ordering and waste.
Is this tool for architectural window film only?
It's built for flat glass installs (residential and commercial). If you're mainly automotive but do flat glass jobs too, this is still useful for planning cuts and footage.
What's the difference between this and window tint estimating software?
Estimating tools focus on pricing and invoices. Precision Film Systems focuses on the cut plan: roll usage, linear feet, waste, and a visual layout installers can follow.
I already have partial rolls in stock. Can I use those to build a cut plan?
Absolutely. With the Shop plan you can add one or more rolls (or remnants) from previous jobs so plans are built around what you already have.
Choose Custom mode and enter your roll/remnant sizes. If remnants run out, you'll get standard-roll metrics for what to order next.
Will the app tell me how many rolls of film I need for the job?
The app gives total linear feet needed for the selected roll size. Use that number to order a partial roll (if allowed) or multiple rolls.
Do I need to install anything?
No. The app runs in your browser on desktop and mobile.
It's also a Progressive Web App (PWA), so you can install it on your phone if you want quick access.
Do add-on credits expire?
Yes. Add-on credits are one-time purchases that expire 6 months after purchase.
They're used only after monthly plan credits are exhausted.
Do add-on credits renew monthly?
No. Add-on credits are one-time purchases and do not renew automatically.
Do monthly credits roll over?
Monthly plan credits reset on your subscription anniversary date. Unused monthly credits do not roll over.
Can I cancel anytime?
Yes. You can cancel through your Paddle receipt email (manage subscription link). You keep access until the end of the current billing period.
Can I upgrade or downgrade?
Yes. You can change plans at any time. Billing is handled by Paddle.
What happens if I cancel?
You'll retain access through the end of your current billing period.
Do you offer refunds?
No refunds except where required by law. If you believe you were charged incorrectly, contact us and we'll help investigate.
See Cancellation and Refunds for details.
Do you explain the algorithm?
No. We explain how to use the tool and how to read results, but we do not publish trade-secret internals.