The version of EverWeb you purchase, plus the free upgrades you are entitled to, will never expire. You will never lose access to your EverWeb application.
Once your support and upgrades plan expires you can purchase a renewal, however this renewal is optional and won't restrict your access to your purchased license.
If you are an EverWeb + Hosting customer you can use all versions of EverWeb for free. In addition you are entitled to 24/7 phone and email support.
