Weight loss + training, principled
Principled is a modular weight-loss and training tool built on one belief: accountability is enablement plus access — equip, never nag.
You don't need to be nagged — you need to be enabled. Motivation is yours to bring; our job is to remove every blocker between you and the work. Log in seconds. See the truth of your own data. Access it however you want. No guilt, no streak-shaming, no locking your numbers behind a paywall. Just the tools, and the truth. Compete if you want to. Bring your own AI if you're advanced. Your data is always yours.
The app is free, forever. Daily logging lives on your phone — no paywall on your own numbers.
How it works
You never pay for access to your data. You pay for the amplified enablement we compute for you. That line is the whole model.
Fast capture, passive ingest, the right cue at the right time — plus full access to your data. The daily-habit surface.
Planning, reports, meal planning, embedded AI. The big-screen controls for people who want to understand and plan, not just record.
Bring your own AI. Point any model you choose at your own data through an open MCP endpoint. Openness as a feature.
The promise
We will never hold your numbers hostage. Export is free. The MCP endpoint is free. There is no version of Principled where seeing your own progress costs money. We win by being the most open tool in the category — not by locking you in.
Start logging — it's freeNudges are onboarding scaffolds that fade. We never accuse you of skipping. Motivation is yours to bring.
Your data, export, and MCP are free forever. The paid line is only the compute we run for you.
Social pressure is a module you choose, not a default that's tied to guilt. Off by default.
Bring your own AI through MCP. Point any model at your own data. No lock-in is the point.