ChatGPT vs Millimeter Pro - screen ruler
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$30M–$130M
$3k–$14k
Downloads / mo
18M–74M
1k–5k
Rating
★ 4.76 (48M)
★ 4.61 (1k)
Pricing
Free + IAP
Paid $3.99
Category
Productivity
Productivity
Released
2.9y ago
13.7y ago
Verdict: ChatGPT earns more — an estimated $30M–$130M/mo, versus $3k–$14k/mo for Millimeter Pro - screen ruler.