Free, one-time purchase, or subscription: Which business model?

Aviation applications follow three main models, with significantly different actual costs over time.

• Free/freemium: basic features are free, with paid options. Ideal for trying out.
• One-time purchase: an initial payment, followed by updates that may incur additional charges (databases, new coverage areas).
• Subscription: the standard for navigation and AIRAC data; expect to pay between €50 and €300 per year, depending on the areas covered.

Also check what’s included: number of aircraft, countries covered, and database updates.