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massdeltaGet the app

Build thephysiqueyou want

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MassDelta's Progress screen
Weight trend
74.3kg163.8lbOn track
Rate / wk+0.27 kg+0.6 lb
Target / wk+0.24 kg+0.5 lb
82.0 kg180.8 lb byApr 2027

Your goal,on a date

9:41

Day 212 of 212.

7 May 2027May 7, 2027
●Calories
3,199of 3,199
●Weight
75.0kg165.3lb
Goal 75 kg165 lb
●Protein
135of 135 g
Fats100 / 100 g
Carbs440 / 440 g
Make it happen
WeightDay 212
75.0kg165.3lb
Goal 75 kg165 lb
A formula guesses your burn

Learns whatyou burn

ExpenditureSettling
2,975kcal / day
Give or take±130
Weigh-ins21
Target3,120
Weigh and search every food

Snapthe plate

A plate read as a Greek salad and a protein shake, each split into its ingredients
Your plate12 PM
1,042kcal
Protein52 g
Fats53 g
Carbs46 g
Numbers, no answers

Ask Deltaanything

9:41
✕Delta
Am I on pace?
Yes. Your trend is up 0.27 kg0.6 lb a week and your plan asks for 0.24 kg0.5 lb. Keep going.
Trend+0.27 kg+0.6 lb
Plan+0.24 kg+0.5 lb
On track
Hungry. What now?
You have 1,370 kcal and 36 g of protein to go. No cooking needed:
Yoghurt bowl
Greek yoghurt300 g
Honey40 g
Calories413 kcalProtein27 gCarbs45 gFats15 g
Add to today's plate
Ask Delta
Logged 413 kcal · 2 itemsUndo
Calories
957
to go
Every weigh-in a scare

The trend,not the noise

Delta explaining that the creatine store is 65% full and holds about 0.6 kg of water
Scale today75.1kg165.6lb
Creatine water≈ 0.6 kg≈ 1.3 lb
Trend74.3 kg163.8 lb
Creatine store65% full

7 daysfree

Try it free · then $59.99 a year
How the trial works +
  • No payment for 7 days. Then the plan you picked is charged — USD $9.99 per month or USD $59.99 per year — and renews until you cancel.
  • To avoid the charge, cancel at least 24 hours before the trial ends, in iOS Settings → Apple Account → Subscriptions. Deleting the app does not cancel.
  • One trial per Apple Account. Prices are in US dollars; Apple converts them to your currency and adds tax where it applies.
  • Apple handles billing and refunds. Full detail in the terms.

Before youstart

How is it different from MyFitnessPal?

MyFitnessPal counts against a target from a formula. MassDelta learns what you actually burn from your weigh-ins and your log, and moves your target when the evidence is clear.

Is it for bulking or cutting?

Both. Pick gain or cut, set a pace, and the target follows your real progress.

Do I need a food scale?

No. Type it, say it, or photograph the plate or the label. Correct any figure with one tap.

Does creatine mess up my weight?

Log your dose and the estimator keeps creatine water out of your tissue figure, so a loading week doesn't look like fat.

Is Delta always right?

No. Delta is a language model. The app's own numbers are the ones to trust, and Delta is built to point at them.

Is there an Android app?

Not yet. MassDelta is iPhone only, iOS 17 or later.

MassDelta app icon

Build the physiqueyou want

Download on the App Store7 days freeiPhoneScan with your
iPhone camera