postspark.app
Ranked #16,146 of 22,010 companies sending people to pay, with 228 checkout visits from April to September 2026.
Where its buyers pay
- Polar228100% of its checkout traffic · #403 among everyone sending to Polar
Trend, April to September
Peak in June at 228 visits.
postspark.app sent 228 visits to checkout pages over six months, about 38 a month, which puts it at #16,146 of 22,010 senders we traced.
100% of that went through Polar. It uses a single checkout, so its buyers all pay through Polar.
Similarweb files it under Programming and Developer Software. It isn’t one of the AI products we classified by hand, so it doesn’t count toward the AI total.
Visits are modelled third-party estimates, not revenue. Read what this can’t tell you before you act on a single number.
Every company, in one CSV.
The top 500 senders for each of 15 checkouts, plus all 22,010 companies ranked. Filter by niche and compare.