Onboard
Tell us about your cut.
Pick your sport. Enter your walk-around weight and your target. The engine charts your Atlas in under a minute.
iOS · Pre-launch waitlist
Make weight.
Make weight.
Not decisions.
The difference Most fighters and strength athletes nowadays guess on their weight cut: eyeballed calories, a winged water cut, hope the scale cooperates. Deficit charts the exact number to hit, every day from now to weigh-in. You stop deciding. You execute.
190.2
183.0
lbs / 12 days
Sport
Powerlifting · USAPL 83 kg
Your Atlas
Day 8 of 12 · on track
Weigh-in
Day before, 24 hrs to rehydrate
Built for the athletes
who weigh in to qualify
who weigh in to qualify
- Powerlifting
- Olympic Weightlifting
- MMA
- Boxing
- Kickboxing / Muay Thai
- Wrestling
- BJJ
How it works
From download
From download
to weigh-in.
Set up once. Then every cut is the same three moves, with a weekly beat to keep the math honest.
Your Atlas
Open today’s page.
One ceiling for kcal. One band for protein. One number for carbs. One window for sweat. Calibrated to your sport, your bodyweight, and the day’s session intensity, not a flat number.
Weekly Check-in
Sixty seconds. The plan re-charts.
Every seven days, review the week’s logs, rate how training felt, see what the engine adjusts. If you’re tracking, no change. If you’re off, the cap shifts, capped at ±100 kcal so nothing whiplashes.
The coach & the engine
Talk to it.
Talk to it.
The math holds.
Ask in plain language. The engine re-charts every remaining day, calibrated to your sport and your rehydration window, and never crosses the safety ceiling.
The Coach
Talk to your Atlas. It changes.
Ask for a looser deficit. More carbs on lift days. A sweat session moved to Friday. An explanation of why today’s kcal cap dropped. The coach reads your Atlas, runs the math against your sport and your remaining timeline, and writes the change back. Every remaining day updates. Not advice. Execution. The safety ceiling still holds.
Plan access
Read–write
Adjusts
Kcal · Macros · Sweat · Timing
Different sport, different fuel.
Powerlifters get higher carbs to protect glycogen. Combat athletes tolerate deeper deficits with tighter carbs during water cut. When you fall behind, the engine re-charts differently per sport.
Strength carbs
1.8–2.5 g/lb
Combat carbs
1.4–2.0 g/lb
Sized to your rehydration window.
Structured sodium and water manipulation for the final days. Two-hour window gets zero water cut. Longer windows get graded loading, sodium tapering, and timed sweat sessions.
2 hr window
0 lbs
24 hr window
Up to 5 lbs
From the scale to the platform.
Step-by-step rehydration from the moment you leave the scale. Every sip, every snack, every electrolyte, all timed and portioned to your exact competition window.
Protocol steps
2–8
The Log
Log it like
Log it like
you’d text it.
Your Atlas gives you the number. The LOG tab is how you hit it: type what you ate in plain words and it does the macros. No barcodes, no database to search, no decimal-point data entry.
“Orange chicken and white rice” splits into its parts on its own, each one weighed and counted.
Log on the gym floor with no signal. Entries queue and sync the moment you’re back online.
Your intake sits next to the prescription, never replaces it. The number to hit is still the number.
Safety Ceiling
Hard limits.
No exceptions.
Cutting goes bad when nobody’s holding the floor. These limits are the engine. The coach asks the engine for a plan; the engine refuses to chart past these. Not a guardrail bolted on. The math itself.
8%
Max cut · strength
Powerlifting, Olympic Weightlifting. Tighter ceiling because lifters carry their cut weight on the bar; bigger cuts measurably hurt maximal strength on the platform.
15%
Max cut · combat
MMA, Boxing, Kickboxing / Muay Thai, Wrestling, BJJ. Past 15% of bodyweight, the app won’t build the cut without explicit acknowledgment. Most athletes in that range should move up a class.
0.8g/lb
Protein floor
Per pound of bodyweight, every day. The floor: aggressive cuts get prescribed up to 1.2 g/lb to protect lean mass. The Coach can’t take you below the floor.
NEVER
Banned methods
No diuretics. No laxatives. No vomiting. No training to heat exhaustion. The Coach will refuse, every time.
The plan won’t crash your training or send you on a starvation cut. If the math says it isn’t safe in the time you have, the app says so, clearly and without panic.
What you carry forward
Every cut earned,
Every cut earned,
on the record.
The cut ends, the record doesn’t. Deficit tracks the metric that actually matters across a career: the one your bracket cares about, the one you say out loud.
The Lifetime Stat
Made-Weight Record.
Built from weigh-in outcomes across every camp. The aggregate your coach reasons over, the number that earns you the next slot.
3
/4
made weight
4 camps · 6.4 lb typical · last earned Aug
Made Weight
Share card.
A portrait poster, brand-matched, captured the moment the scale lands. Built for the post on the way back.
Questions
Before you
Before you
spend an email.
The honest answers. Anything missing, ask us at support@getdeficit.com.
When does it launch?
Deficit is in closed TestFlight beta now, and invites go out in waves. Join the waitlist and you’re in line. Tell us your sport and we’ll prioritize the cohorts we’re building for first.
Is it only for iPhone?
Yes. iOS first, built natively for iPhone. Android isn’t on the near-term roadmap. If that changes, the waitlist hears first.
Can I log what I actually eat?
Yes. The LOG tab is a plain-text food journal: type it like a note and it does the macros, splitting whole plates into their parts. Your intake sits alongside the prescribed plan; it never overwrites the number you’re told to hit.
Is cutting like this safe?
Deficit runs on a hard Safety Ceiling the engine and the coach can’t cross: calorie floors, a protein floor, water cuts capped to your rehydration window, and banned methods it refuses outright. If the math isn’t safe in the time you have, it tells you plainly, and won’t build the cut.
Join the build
The first athletes
The first athletes
shape what ships.
Deficit is pre-launch and inviting athletes in waves. Join now for an early TestFlight invite, and the first cohort’s feedback decides what gets built next: which sports go deeper, what the coach should never say, where new features land.
- Early inviteA spot in the next TestFlight wave
- A real sayFounding feedback steers the roadmap
- First to knowLaunch & pricing news before anyone
Hard safety ceiling
Calorie & protein floors, capped water cuts, banned methods refused. In the math, not bolted on.
An engine, not a chatbot
Your plan is deterministic. The coach proposes; the engine and the ceiling decide.
Built for the platform
Seven sports, sized to your rehydration window, re-charted every week.