HubSpot Marketing Hub Professional charges $890/mo for the first 2,000 marketing contacts, then $270/mo for every additional 5,000-contact tier. Our pilot portal sat at 38,412 contacts — five tiers above the 2,000 baseline — paying $890 + (5 × $270) = $2,240/mo just on tier pricing.
Without flowchester, our portal was net-adding ~600 marketing contacts/month (after counting unsubscribes and HubSpot's own deletes). At that rate, the next tier crossing — into 40,000 contacts (six tiers, $2,510/mo) — was 60 days out. Adding the next tier on top of that one would have hit ~110 days.
With flowchester catching ~475 contacts/day of garbage, the net contact count actually dropped from 38,412 to roughly 38,100 over the 30-day window despite normal organic growth. Projecting forward at the same blocking rate against the same organic inflow, the portal will cross BACK BELOW the 35,000 tier (saving the first $270/mo) within 4 months, then the 30,000 tier within 8-10 months — a stacked $1,080/mo reduction once both crossings land.
The flowchester subscription cost across that same horizon: €99/mo Pro × 12 = €1,188/yr. Projected HubSpot bill reduction at steady state: $1,080/mo × 12 = $12,960/yr. Even at conservative discounting for the timing lag and the months before the first tier crossing, year-1 net savings clear $9,000.