Cbum Transformation
A local-first iOS training system for programming workouts, logging sets, and measuring readiness against personal health baselines.
A gym app with an audience of one.
Cbum Transformation is a personal iOS training system: program the work, log what actually happened, and measure readiness against your own recent baseline. There is no account, analytics pipeline, subscription, or remote workout database.
The app
 Today Readiness, streak, next session |
 Program Twelve weeks at a glance |
 Log Plan beside actual work |
 Library 1,324 exercises |
 Workout Load, reps, RIR, timer |
 Session Every completed set |
 How-to Animation and instructions |
 Coach Guidance grounded in the log |
One source of truth for training
The default plan is Jeff Nippard’s Min-Max Program, parsed from the official spreadsheet into 12 weeks across two blocks, including set-by-set rep ranges, RIR targets, rest intervals, and notes. It can be replaced by a built-in template, imported JSON or CSV, an AI-drafted program, or a program edited in the app.
The calendar keeps planned and completed work separate. A planned rest day and an unplanned lifting session can both be true; the log records both and can sync the result to iCal.
Readiness without false precision
Today’s sleep, HRV, and resting heart rate are compared with the user’s own two-week baseline. Until enough history exists, the app shows no score rather than inventing one. A higher resting heart rate correctly reduces readiness.
Health data and training records remain on the device:
HealthKit ─┐
workouts ──┼─ local SQLite ─ readiness + log + coach context
programs ──┘
The coach receives recent sessions, PRs, and the health trend, and can suggest training adjustments or draft an importable program. Its output is general training guidance, not medical advice.