1. Purchasing two or more licenses simultaneously is subject to get a quantity discount. Purchasing new license includes annual maintenance. Annual maintenance replaces purchasing upgrades between versions, so purchasing maintenance and staying current on maintenance is the only way to have access to all newer XTools Pro versions, no matter major or minor. Technical support by email is equally included.
2. You can renew your maintenance while your current maintenance is still valid, or not more than three months after your current maintenance is expired. There is a quantity discount for users renewing their maintenance period for next two or more years simultaneously.
3. Users with maintenance expired three or more months ago, need to either purchase new license or pay the respective reinstatement fee for lapsed period of maintenance to have access to all newer XTools Pro versions. Note that quantity discounts are not available in case of purchasing reinstatement for expired maintenance.

Purchased Single license can be installed and used on one computer. You may install Single license on your desktop computer and laptop (for work in the field, for example) and apply one and the same Single license for both installations, but not use simultaneously on both devices. Activating XTools Pro Single license on more than two computers is not allowed.

Subscription gives you right to use XTools Pro for one year. You can renew your XTools Pro subscription while it is valid. After subscription expires, all tools and features become unavailable and you will need to buy a new subscription or a Single license. Subscription is compatible with all XTools Pro versions released during the subscription period. There is no maintenance for subscription.