GlassWire frequently runs sales (up to 50% off during Black Friday, Cyber Monday, and Christmas). A lifetime license for 1 PC normally costs $69, but on sale, it drops to $34.50.
Family Plan. ... $2.99 $1.49 per license with 50% discount code FAMILY50. : Starting at $2.99/month (billed annually) for 1 license. : Covers 2 licenses for approximately $4.18/month (billed annually). : Covers 5 licenses for approximately $7.48/month (billed annually). : Look for promo codes like (30% off Duo/Personal) or (50% off Family) frequently listed on the official site. Warning on Third-Party Keys glasswire premium key
For a home user, this is often enough.