There are various tools designed specifically to assist in user interface and experience design, some offering free or limited free plans:
1. Design Tools: Craft beautiful interfaces with free options like Figma or explore paid options like Adobe XD or Sketch.
2. Prototyping Tools: Bring your designs to life with interactive prototypes using Figma, Adobe XD, InVision (free trial), or Proto.io.
3. User Testing Tools: Get valuable user feedback with free trials from UserTesting or Lookback's paid plans.