What are some alternatives?
When comparing ListClean and Apility.io, you can also consider the following products
clearout.io - The easiest and real-time email verification and validation tool.
ipinfo.io - Simple IP address information.
DataValidation - Email validation and email verification service integrated with MailChimp, MailUp, HubSpot and Zapier.
IP Sidekick - IP Sidekick is a geolocation API that returns information about an IP address.
DeBounce - Email Validation, Email Checker, Data Enrichment and Appending Tool. Using DeBounce remove invalid, disposable, spam-trap, syntax and deactivated emails.
IPlist.cc - Get IP details for free through the web or via API.