Most monitoring tools are built for ops teams and track one thing. Opseer is for the solo dev who is the ops team. It unifies ad revenue (AdMob, AdSense), payments & subscriptions (Stripe, RevenueCat, Polar), and your own custom stats from Supabase/Firebase/Neon — DAU, signups, coupon usage, whatever you query — in one place. Connect each platform once, and it sends a daily report straight to Telegram, Slack, or Discord at the time you set. Multi-project, team-based, with a no-login demo.