Pro · monthly
Pro for €3.99 a month
The first 7 days are not charged. Then €3.99 a month, and you cancel whenever you like, online. Stripe asks for the card at the start and charges nothing until day 8; cancel before then and nothing is charged. Pro stays on to the end of the period already covered, and when it stops the tools go back to the free limits on that date: nothing you made is deleted.
With a free SyntaxFlow account, Pro follows you to every device you sign in on, and you find the subscription there to cancel it. Without one, Pro stays in this browser, and on another device you get it back with the email you paid with and the last four digits of the card. If you would rather renew nothing, Pro for good, €29 once.
What Pro adds
- On every calculator: the report with your logo and company details, lists and saving without limit, and the Excel file.
- The glazing schedule checker on every project: each pane sized for wind, the fewest make-ups, the order list for your supplier and the report.
- For the cutting table: a label for every pane, a rack of 400 offcuts and the job library.
- Your own line on the labels and the documents instead of ours.
The calculation itself stays free on every calculator. Everything Pro adds, calculator by calculator →
Checking your account…
With an account, or without one
With an account (a username and a password): Pro on every device where you sign in. You come back to this page and go on to the payment.
Without an account: Pro is kept in this browser.
Ready to start
Pro is kept in this browser; on another device you get it back with the email you paid with and the last four digits of the card. Stripe takes the payment; we never see your card.
Ready to start
Signed in as . The subscription is kept in this account. Stripe takes the payment; we never see your card.
Not your account? Sign out in My account and sign in with yours.
Your account already has Pro monthly
It renews by itself each month; the period already covered runs to .It has been cancelled: Pro stays on until and nothing more is charged.
To cancel it or change the card, use Stripe’s customer page with the email you paid with.
To cancel it, write to and we cancel it the same day.
Your account already has Pro for good
There is nothing to pay: Pro is on wherever you sign in. Back to the tools →
This browser already has Pro for good
You bought the one-off here without an account, so there is nothing to pay. To have Pro on your other devices as well, keep that purchase in your account: type the email you paid with and the last four digits of the card. We check them with Stripe and nothing else.
The monthly is not available yet
Meanwhile, Pro for good is €29 once, with no account and nothing to renew. What Pro adds →
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