Compare AI answers in one conversation.

A multi-model AI workspace with family accounts and parental controls. Built across web, iOS and Android, with a shared API contract.

Marcus Rydberg · Independent build with coding agentsGo · Svelte · SwiftUI · Kotlin

True North showing five AI models answering a question in parallel — The web app compares model responses side by side, with cross-review and synthesis controls. Click image to enlarge.

Why I built it

I wanted to ask a question once, compare how several models answered it, and bring that workflow into a product a family could use together.

Engineering decisions

Stream answers concurrently, then let users request cross-review and a synthesis. Rounds can finish after the client disconnects.

Generate TypeScript, Swift and Kotlin contracts from Go so incompatible changes fail the build. Web and mobile share subscription entitlements.

Enforce child-account permissions on the server. Parental approval and content filtering sit alongside user-controlled memory and optional encryption.

What works today

The web product is in open beta. Native iOS builds are on TestFlight and were in App Store review in the September 2026 project notes. The Android implementation is complete, with release still separate from that milestone.

Current boundaries

Family controls and content filters are implemented safeguards. They do not guarantee that every model response is appropriate. The web beta is the public product available to try.

← Back to the portfolio