You are a data point. Find out which one.
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Most fitness apps tell you you're doing great. Outlier tells you where you actually stand.
Your body produces data. Outlier plots it on a Gaussian distribution built from real population datasets (NHANES, Schutz, ACSM) and shows you your exact percentile not a motivational score, not a streak badge, not an algorithm trying to keep you engaged. A number on a curve. Honest, precise, and yours to move.
REAL RANKINGS ON A GAUSSIAN CURVE Every measurement you enter: body fat, weight, circumferences is scored against real population norms and placed on a bell curve. You see your overall percentile, per-metric breakdowns, and how your position shifts as your body changes. Estimated metrics are clearly marked, and the app tells you how many of the eight metrics your score was built from, so you know exactly how far to trust it. The math doesn't flatter.
RPG PROGRESSION Your level reflects your actual rank on the curve not how many times you opened the app. Tiers run E through S. A body-fat gate keeps them honest: you can't measure your way to elite at 40% body fat. And a training ceiling means logged work can raise your tier, but never be skipped. A percentile goal line on your chart shows exactly how far you are from the next threshold.
TWO WORKOUT MODES Quick Log: open the app, log what you did, close it. Live Training: a set-by-set checklist with rest timer, pause/resume, undo, and extend cooldown. Your session survives tab switches, minimizing, even the system killing the app mid-squat. Nothing resets until you finish.
89 ANIMATED EXERCISES Every exercise has an animation guide. Search by category, add moves mid-workout, or merge a whole template on the fly. 9 presets: Push, Pull, Legs, Cardio, Full Body, Upper, Lower, Arms, Core.
PROGRESSIVE OVERLOAD TRACKING Automatic PR detection across your full session history, with estimated 1RM. Every improvement is flagged because if the data shows progress, you should know about it.
TRAINING JOURNAL Your full history, by date. Log sessions you forgot, mark rest days retroactively, edit what you got wrong. Streaks with freeze tokens, so one bad week doesn't erase three good months.
THE CAT Your trainer doesn't motivate you with confetti. He has standards. Feed him by training consistently he eats when you log sessions and hold your streak. Skip a day and he gets hungry. Skip too many and he lets you know. He won't beg. He'll just look at you. As he levels up alongside you, he starts dropping hints. Training tips, recovery nudges, the occasional remark about your body fat percentage. The higher his level, the sharper his insight. He's been watching your data. He has opinions. Every line is handwritten. No AI, no cloud, no per-message billing which is also why he works with your phone in airplane mode. Different themes, different cats. Same judgment.
8 VISUAL THEMES DEFAULT · SAMURAI OS · CONSTRUCT OS · OUTRUN OS · BLADE RUNNER free. ECLIPSE · SINGULARITY · MONOLITH with OUTLIER+. Not colour swaps. Each theme has its own naming, cat persona, sounds, badges and notification texts.
BODY COMPOSITION Navy-method body fat, FFMI, circumference percentiles with cited norms. Trend charts, percentile history with tier boundaries, goal lines. No fake precision, estimates are always labeled.
FIVE HOME SCREEN WIDGETS Status, Quick Log, Streak, Daily Tasks and your Cat. Theme-aware, and they update the moment a workout ends.
DAILY HABITS Water, sleep and steps, with an evening hydration reminder. From the cat, obviously.
PRIVACY FIRST All data stays on your device. Analytics are off until you turn them on the app asks once, in plain language, and takes no for an answer. Optional Google sign-in backs up and syncs your profile. No ads. No data sold. Ever.
OUTLIER+ Optional. Adds three premium themes, deeper stats, exports and cat insights. Available monthly, annually, or as a one-time lifetime purchase. Everything described above stays free.
Feed the cat. Or don't. But it will remember.