How is IntelliJ IDEA's unified distribution model different from traditional shareware?

Question

How is IntelliJ IDEA's unified distribution model different from traditional shareware?

Answer

Unlike shareware, which typically offers limited-time or restricted-use access to the full product, IntelliJ IDEA follows a freemium model. The core features, especially those for Java and Kotlin development, are completely free, with no time limits and available for both commercial and non-commercial use. A subscription is only required to unlock advanced and enterprise-grade features (included in the Ultimate subscription). This ensures a powerful, production-ready experience is always available at no cost, with optional upgrades for users who need more.