Hi Peter,
Please refer the link below to know the difference between the Editions and pricing.
Please find below the difference between the Licensing Models.
Annual Subscription Model: The License key will be valid for a year. Every year you need to renew the license key by paying same fee to keep your product up and running. If you don't renew the license, the product will change to a free edition. The cost includes both license fee + Maintenance & Support fee for one year.
Perpetual Model: During the initial purchase you will be paying both one time license fee + Maintenance & Support fee for first year. From second year on wards, you just need to renew the Maintenance & Support fee(AMS) alone. The license key never expires.
Note : Drop an email to passwordmanagerpro-support@manageengine.com with the number of admin count you will need to get an official price quote.
Let us know if you have any further questions.
Password Manager Pro Team
Email: passwordmanagerpro-support@manageengine.com
Password Manager Pro - Enterprise Password Management Software