Dell APEX Subscriptions is Dell Technologies' umbrella portfolio of subscription and consumption offerings intended to provide Dell infrastructure (and select client/endpoint services) under subscription terms. The portfolio is designed to offer procurement and elasticity characteristics similar to public cloud procurement while keeping systems on-premises, in colocation sites, or integrated with public cloud where applicable. In practice, APEX is a portfolio of multiple offerings (for example, infrastructure subscriptions, PC-as-a-Service, managed device services, storage-as-a-service, and private cloud / HCI-based offers) packaged around subscription terms, metering, and Dell-operated lifecycle services. This variability across individual offers is frequently noted in community discussions and reviews.
For Dell APEX Infrastructure subscriptions specifically, Dell describes pay-per-use billing, installed buffer capacity, and required deployment/support services. Dell also publishes a capped monthly billing construct (reported as a capped monthly billing at a specified portion of total installed capacity for certain storage/data protection/VxRail offers, with exclusions and eligibility constraints).