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Six AI personas
Each with a distinct voice, tone, and meditation style. Powered by Claude with custom system prompts.
→←All work
Case study / Live product
Sooul.
AI meditation companion with multi-persona conversations.
An iOS + Android app that pairs users with AI personas for guided meditation, mood tracking, and on-demand music generated in real time. Subscriptions handled by RevenueCat, music synthesized via Vertex AI Lyria.
Visit live product↗Production interfacelive
PlatformsiOS + Android
Live in14 countries
AI personas6
01 / The product
“An iOS + Android app that pairs users with AI personas for guided meditation, mood tracking, and on-demand music generated in real time. Subscriptions handled by RevenueCat, music synthesized via Vertex AI Lyria.”
Delivery Concept to App Store in 6 weeksOwnership ClientStatus Live
02 / The brief
Meditation apps arestatic.
Starting point
Calm and Headspace serve pre-recorded sessions to millions of people the same way. Users hit a wall: the content stops feeling personal.
The brief was to build an app where meditation feels like a conversation — different personas, different moods, music that responds to the user. Shipped to iOS and Android. No prototype, no MVP-disguised-as-product. A real app on day one.
03 / The system
Conversational meditation,generated music.
On-demand soundscapes
Music synthesized in real time via Vertex AI Lyria, matching the mood of the session.
→Cross-platform from day one
React Native + Expo. Single codebase, native feel, App Store and Play Store ready.
→Subscriptions handled
RevenueCat for billing across platforms. Trial → paid conversion tracked end-to-end.
→04 / The build
The tools behindthe finished product.
A production stack chosen for the product's actual constraints: speed, reliability, ownership, and room to grow.
React Native01
Expo02
Claude03
Vertex AI Lyria04
RevenueCat05
Supabase06
05 / Timeline + outcome
From zero to live.Concept to App Store in 6 weeks.
The work moved in visible increments, with a usable product at every major review.
1Week 1Discovery + design
2Weeks 2-4Core build
3Weeks 5-6Polish + submission
4Day 42Live on both stores
New projects / Q3 2026
Make it useful.Then make it real.
Bring the problem, not a polished brief. We will tell you what to build, what to leave out, and the shortest honest route to launch.
See what we have shipped→Capacity 2 builds / monthEngagement Fixed scopeDelivery Production ready