The scale tells you how much. Hence shows you where. It measures your body from a mirror selfie, lays last week's outline over today's photo, and keeps your meals, training, sleep and supplements next to it, so you can see what changed and why.
Join the waitlist and your first month is free. For iPhone. We'll send a welcome email now, then one when it's your turn.
It's yours when your turn comes. Want it sooner, or want more free months? Every friend who joins with your link moves you 100 places up and counts toward the rewards below.
More than a scan
The scale gives you one number. Hence puts your shape next to what you ate, how you trained, how you slept and what you took, so you can see what changed, where, and what was going on that week.
Torso widths and your waist in real centimeters, from the mirror you already use for progress pics. The scan guides you one thing at a time and fixes the rest afterward.
The earlier outline on today's photo, lined up at the same scale and straightened, with a slider to fade between them. Apricot is then, lilac is now.
Type what you ate, one food per comma. Calories and macros come from a built-in food database. A photo if you want one.
Hence reads them from Apple Health, so your watch and scale keep logging for you. Read-only: nothing is written back.
Set a schedule once and get a reminder when it's due. Tap to log it, and see how consistent you've been.
Pick a date, an event or the day you started something, and see everything since then on one chart. On a recomp the scale can sit still while your waist keeps going down. Hence shows both.
One place for the whole day
Everything you log and everything Apple Health brings in lands on one timeline, so a week of change comes with the week that caused it. Switch between cm and in, kg and lb, for anything.
Hold your phone like you would for a progress pic. Hence guides you one thing at a time: distance, arms, a slow breath out.
Your phone's reflection is a ruler of known size, so the outline comes out in real centimeters. No tripod, no suit, no tape.
Last week's outline sits over today's photo. Slide to fade between them and see where you got smaller, next to what you ate, slept and trained.
Yours, and only yours
Scan photos are only ever shown to you. Nothing is public, and nothing is shared unless you choose to.
You pay for Hence, so we never need to sell your data or show you ads. Health data is never used for marketing.
Everything works on the phone first and backs up when you're signed in, so a new phone picks up where you left off.
On the way
Let a coach or a friend see your check-ins and Compare, without sending photos back and forth. Coaches view clients free.
The whole app, scan guidance included, in Spanish.
Upload a report and keep every value over time, next to your scans. Hence points out what's worth bringing up with your doctor.
Pricing at launch
Everything in Hence. About $0.58 a week. Everyone else gets a 7-day free trial.
Everything in Hence, billed weekly.
For iPhone. Join the waitlist for a free first month, and bring friends to earn up to six months free.
Questions
Hence is an iPhone app for tracking body change. It measures your waist and torso from a mirror selfie, lays an earlier scan's outline over today's photo so you can see where you changed, and keeps your meals, workouts, sleep, weight and supplements on the same timeline.
A measurement needs something of known size in the photo. Hence uses what's already in a mirror selfie: your phone's own reflection, the spacing of your eyes measured by the front camera, and on iPhones with LiDAR, the distance to the mirror. That turns the outline into real centimeters, with no tape, tripod or special suit.
Scans need an iPhone with a Face ID front camera. iPhones with LiDAR (Pro models) get an extra distance reading. iPhone SE models can't run a scan.
No. Hence measures widths, your waist and how your outline changes over time. It doesn't estimate body fat percentage or give medical advice.
Meals with calories and macros, plus a photo if you want one; sleep, workouts and weight from Apple Health (read-only); supplements with schedules and reminders; and progress since a starting point you choose.
$29.99 a year with a 7-day free trial, or $0.99 a week. People on the waitlist get their first month free.
Yes. Scan photos are only shown to you, nothing is public, and Hence doesn't sell data or show ads.
Not yet. Hence is iPhone only for now.
Join the waitlist and your first month of Hence is free. Bring friends for up to six months.
Get my free month