freemium

/F R IY1 M IY0 AH0 M/
noun
  1. 1

    A product that is offered free of charge and supported by sales of a premium version.

  2. 2

    A business model that relies on offering a free version and charging for a premium version.

Synonyms

adjective
  1. 1

    Offering basic services for free while charging a premium for advanced or special features.

Source: https://en.wiktionary.org/wiki/freemium