7-day free trial · no card required

A height forecast for your child, and the daily plan to back it up.

Enter a few measurements to get a research-informed growth range in seconds. Heightly turns it into a two-minute-a-day routine of stretches, posture work, sleep, and nutrition — tracked over time as the range sharpens.

Cancel anytime · full access from day one
Growth forecast Live preview
M
Maya · age 6 · 44.1 in tall today
Predicted adult height range
5'0" – 5'0"
P5P50P95
ExerciseCobra Stretch · 6 min
PostureWall Angels · 6 min
MobilityCat-Cow Flow · 5 min
How it works

From four measurements to a daily routine.

No lab visit, no guesswork — just the numbers you already have, turned into a range and a plan.

01

Enter the basics

Your child's current height, weight, age, and both parents' heights.

02

Get an instant range

A P5–P50–P95 forecast, shown in feet and inches or centimeters, in seconds.

03

Follow the daily plan

Short exercise, posture, mobility, sleep, and nutrition tasks — minutes, not hours.

04

Watch the timeline

Log new measurements and habit streaks to see the range and the routine evolve.

The program

Everything the forecast points to, built into one plan.

Four real parts of the app, not marketing screenshots.

Today's plan

One list, sorted by what it's actually for.

Exercise, posture, and mobility tasks are labeled as what they are — so you always know a stretch is building strength, wall angels are training posture, and cat-cow is loosening the spine, not just "another exercise."

  • Named, categorized tasks — never a generic checklist
  • Sleep and nutrition logged separately from movement
  • Built for 10–15 minutes a day, total
Cobra StretchEXERCISE · 6 MIN
Wall AngelsPOSTURE · 6 MIN
Cat-Cow FlowMOBILITY · 5 MIN
Lights out by 8:30SLEEP
Protein at breakfastNUTRITION
Grow hub

Three pillars, kept separate on purpose.

Activities, sleep, and nutrition each get their own space — because a growing body needs movement, rest, and fuel to all show up daily, not just whichever one the app remembers to mention.

  • Guided exercise videos for every move
  • A quick posture check-in, on demand
  • Sleep and meal logging in the same place you check tasks
Activities
Sleep
Nutrition
AI coach

A place to ask the small questions.

"Is 5 minutes of wall angels enough?" "What should we log for dinner?" — quick, judgment-free answers, always pointing back to the plan and the disclaimer, never standing in for a pediatrician.

  • Answers grounded in your child's own plan
  • Available whenever a question comes up
Is 5 minutes of Cat-Cow actually enough for mobility?
For a daily habit, yes — consistency matters more than duration here. Keep it at 5 minutes and focus on slow, controlled reps.
Growth timeline

Watch the range narrow as the data grows.

Every new measurement sharpens the forecast. Streaks keep the daily habits honest — not for pressure, just so progress is visible on the days it's easy to miss.

  • Full height history, chartered over time
  • Streaks and achievements tied to real tasks completed
Current streak12 days
Who it's for

Built for parents who want a plan, not a percentile alone.

Parents of growing kids

Ages 4–16, curious about where their child's height is headed and what they can do day to day.

Families who like structure

A 10-minute routine that fits before school or after dinner, without needing a gym or equipment.

Anyone who tracks progress

If streaks, timelines, and seeing a range narrow over months motivate you, this is built around that.

Pricing

One plan, two ways to pay for it.

Every plan starts with a 7-day free trial — no card required to begin.

Best value
Annual
$54.99/yr
≈ $4.58/mo · billed annually after your trial
7-day free trial, no card required
  • Unlimited growth forecasts
  • Full daily plan: exercise, posture, mobility, sleep, nutrition
  • Growth timeline, streaks & AI coach
  • Cancel anytime
Start free trial
Monthly
$13.99/mo
billed monthly after your trial
7-day free trial, no card required
  • Unlimited growth forecasts
  • Full daily plan: exercise, posture, mobility, sleep, nutrition
  • Growth timeline, streaks & AI coach
  • Cancel anytime
Start free trial

Prices shown in USD. Trials begin instantly with no payment method — you're only asked to pay if you choose to continue.

FAQ

Straight answers, before you start.

No — it's a data-informed estimate, not a clinical diagnosis. Heightly is built to guide daily habits, and your pediatrician is always the right call for anything health-related.
No. Your 7-day trial starts instantly with no payment method on file. You'll only be asked to pay if you decide to keep going after the trial.
From your child's current height, weight, age, and both parents' heights, shown as a P5–P50–P95 range rather than a single number. Logging new measurements over time narrows the range as more data comes in.
Yes, from Settings, anytime. You keep full access through the end of the period you've already paid for — cancelling doesn't cut you off immediately.
Most families using Heightly have kids roughly 4–16 — old enough to follow simple daily exercises, young enough that habits and tracking still make a visible difference.

See their growth range in under two minutes.

Start the 7-day free trial — no card required — and get today's plan alongside it.

Start free trial — no card required
7-day trial · no card required · cancel anytime