Best for avatar customisation and AR
Replika
The app most people meet first, and the most mature of the bunch. Years of refinement show in the avatar system — 3D models, AR views, and a relationship-progression arc that gives long-term use a shape. The community around it is large enough that any question you have has been asked before.
Better than July AI: Avatar customisation, AR and voice calling. July AI has an illustrated character that reacts, and nothing close to Replika's avatar depth.
Full Replika vs July AI comparison