Harmony vs IFS Guide
Last updated: July 2026
IFS Guide and Harmony are both apps for doing Internal Family Systems work with an AI guide: Harmony, or IFS Guide's Sunny.
Harmony
Harmony is an AI therapist you can talk to, switching seamlessly between voice and text. It specializes in IFS, fine tuned for parts work, with a CBT mode you can switch to at any time. There is also a relationship mode, where couples (or any relationship) join one session together and Harmony guides them to understand one another and regain connection. After each session, Harmony provides a post-session analysis with key insights, strengths and weaknesses, visualizations, and more to make what came up in the session stick.
What sets Harmony apart is its ability to understand someone's inner world and get to the root of issues, providing change that lasts.
Pros
- Most fully featured app: post-session analysis4, AI and user trailheads6, journal space, and visualizations like parts maps3 and comic strips
- Harmony maintains memory across all sessions
- High quality and diverse selection of voices
Cons
- No manual parts mapper: parts maps are created for you after sessions, so you cannot build and arrange one by hand
- No library of pre-recorded guided meditations to play outside of live sessions
IFS Guide
IFS Guide is a dedicated Internal Family Systems app built around Sunny (previously Pepe the dog), an AI guide for parts work. You can work with Sunny in voice mode or text mode. There are also pre-recorded guided meditations, and part check-in reminders you can set so you remember to check in with your parts.
A standout feature is its parts map4, which lets you map your inner world and the relationships between all of your parts. It is a warm, earnest companion for anyone practicing IFS.
Pros
- Manual parts mapper4 and library of parts
- Town Hall feature5 for working with different emotions
- Free community feature6 for users: a newsfeed where users can share reflections and thoughts with others
Cons
- No memory across sessions, every session starts fresh
- Reliability issues with microphone recording and AI responses
Final Words
Both applications have real strengths, and people gain genuine value out of each. We recommend you give both a go and decide yourself!