Propfessor.
( Changelog )

What changed.

Newest first. Product facts only, dated from the day the thing actually shipped.

14 September 2026
Three questions, not fourteen days
The free run is now 3 questions rather than a fortnight. A fortnight measured how long you had been signed up, which is not the same as whether this was any use; most of it went by without a visit. Three questions are three real problems. Sign-up is unchanged and still comes first, and there is still no card.
11 September 2026
An account first, then the free days
The three answers with no account are gone. Create an account and the first 14 days are free, with no card and nothing to cancel. The trial now opens the one module you say you work in; the others you tick are noted for later, not opened.
8 September 2026
Pages for every module, and prices you can read without signing in
Each module now has its own page saying what it is and what a session with it looks like. Pricing carries both the monthly and the yearly price, what a subscription includes and what it does not. Two modules that were answering had been labelled coming soon; they are labelled correctly now.
5 September 2026
Answers follow the current release
Answers now follow the current release of each application, and say so where something moved or was renamed along the way.
3 September 2026
A free trial that needs no card
Three answers free with no account at all, then 14 days free with no card. Nothing is charged until you choose to subscribe.
31 August 2026
Procore and Rockport VAL start answering
Two more applications, taking the total to 13 modules answering today. Procore covers construction delivery once a scheme is on site. Rockport VAL covers cash flow modelling and valuation.
29 August 2026
Sign in with Google or Microsoft
Alongside a code sent to your work address, so there is no password to keep.