GeoJS vs ipapi.co

GeoJS is a free, no-signup IP geolocation lookup that returns country, city, ASN, and timezone data as JSON or JSONP over HTTPS with open CORS. It's built for simple client-side and ChatOps integrations rather than high-volume commercial traffic, and has no paid tier.

ipapi.co geolocates an IP address and returns the result as JSON, XML, or YAML without requiring an API key for light use, though the no-key path is rate-limited and marketed by the vendor as a free trial rather than a permanent free tier. Paid subscriptions start at $15/month (or $12/month billed annually) for 60,000 lookups/month, scaling up to $399/month for 15 million/month.