A: HI let me answer your question
1. Yes - we are updating it every Friday https://roadmap.zeroin.me/

2. We have a rest API but not public yet. There has been a lot of request to make it public so we will prioritise that.

3. Hunter scrapes all publicly available data with a lot of beeing generic, private and old info. We have our on business email discovery and validation technology where the data is 98% accurate in real-time.
We also give 26 different data points on the the lead as Hunter limits it to 3-4 data points.
They have a database you can search but no LinkedIn extension to scrape the data yourself.
At some point we will also make our database available for search and export.

Check pout this page for side to side comparison https://zeroin.me/alternatives/hunter-io-alternative/