A free tier is not the same as a free product
Most travel apps are free to download. That is not the same as the planner being free. A common model is a usable free tier for building an itinerary, then a paid plan for extras such as fuller offline access, export, documents, or automation.
That can be a fair trade if you want those extras. It is a different product from one version where ideas, decisions, itinerary, map, costs, packing, and export are included without a tier split.
Awaii is the second kind, today. Ideas, decisions, the itinerary, the map, costs, packing, and export are in that one version.