How it works
A coach that shows its working.
Sagoma is not trying to be a personality. It is trying to be the thing that estimates honestly, adapts to what your body actually did, and refuses the requests that would hurt you.
Week 0
You say what you want and what you actually have.
Days you can train, equipment you can reach, injuries you are working around, how long you have been lifting, your current weight. Nothing starts until you have confirmed you are eighteen and recorded your consent, and both of those are stored as dated records rather than a checkbox that disappears.
Week 0
It states the outcome before you commit to the work.
You get a predicted range for lean mass and fat loss across the block you chose, with the assumptions it used printed next to it. If the range is smaller than you hoped, that is the useful part. You get to decide whether to spend twelve weeks on it while knowing the answer.
Week 1–2
It runs on a formula it openly does not trust.
Every published energy equation is a population average pointed at one person, and the spread around that average is wide enough to matter. Sagoma uses one to get started and treats the output as a placeholder, because for the first fortnight there is nothing better to use.
Week 3 on
Your own trend replaces the estimate.
Once there are fourteen days of weights and logged intake, the placeholder is discarded and your maintenance is derived from what actually happened to your weight at the intake you actually ate. From that point the target moves when your body does, not when a calendar says it should.
Every plan
A validator sits between the coach and you.
Nothing reaches you unchecked. Each generated plan is tested against fixed rules — weekly volume ceilings, deficit ceilings, the body-fat floors, no dehydration or peak-week protocols at any level — and a plan that fails is rejected and regenerated. Rejections are counted, because a rule that fires constantly is either a bad rule or a bad generator, and we want to know which.
Always
It is not a clinician and does not imitate one.
Sagoma does not diagnose, treat, or manage a medical condition, and it is not a substitute for advice from someone qualified to give it. Where an answer would require clinical judgement — a medication interaction, a suspected eating disorder, an injury that is not settling — it says so and points you outward rather than guessing.
Your data
We built it so we cannot read it.
Your logs, weights and progress photos are encrypted on your phone before anything is sent. The key that seals them is derived from your passphrase, and that passphrase never reaches our servers — what we store is an opaque blob and a wrapped key we have no way to unwrap.
This is a real constraint on us, not a marketing line. It means a subpoena, a rogue employee, or a breach of our database yields ciphertext.
The honest cost of that design
If you lose your passphrase, your history is gone. We cannot reset it, recover it, or read around it. That is not a gap we intend to close later — closing it would mean holding a key, and holding a key is the thing we are avoiding.