Heavy: Screen Time by Weight
Feel How Heavy Your Phone Is
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
What if your phone got heavier the more you used it? Heavy turns screen time into physical weight you can feel. A new kind of habit nudge.
What if your phone got heavier every time you picked it up?
Heavy turns your screen time into physical weight. The more you use your phone, the heavier it becomes. Not a lecture. Not a chart. A feeling.
Tap "Check My Phone's Weight" and Heavy reads your screen time, calculates a weight in kilograms, and delivers escalating haptic pulses so you literally feel the heaviness in your hand. A feather at 15 minutes. A brick at 3 hours. A black hole at 12.
This isn't another screen time app that shows you a number and hopes you care. People don't change because of information. They change because of reframing. Heavy reframes your usage as something physical, tangible, and slightly uncomfortable.
HOW IT WORKS
Your phone starts each day at 0.5kg. Every hour of screen time adds 0.3kg. Heavy reads your actual Screen Time data and converts it into one of seven weight levels:
- Feather (under 30 min)
- Pebble (under 1.5 hours)
- Brick (under 3 hours)
- Dumbbell (under 5 hours)
- Anchor (under 8 hours)
- Boulder (under 12 hours)
- Black Hole (12+ hours)
Each level has its own haptic signature. Light taps for a feather. Deep, heavy thuds for a boulder. You feel the difference before you see the number.
THE WEIGHT CHECK RITUAL
Heavy is designed for one moment: the pause before you start scrolling. Open the app, check the weight, feel the haptics. That's it. A two-second ritual that makes you conscious of what you're about to do.
WEIGHT HISTORY
Track how your phone's weight changes over time. See your last 7 days for free, or unlock 30 days with Heavy Pro. Watch the pattern. Are your weekends heavier? Is Tuesday always a feather? The weight tells a story that hours and minutes never could.
HEAVY PRO
Unlock your full weight history with a single purchase. No subscription. No recurring charges. Just one payment to see 30 days of weight data and support independent development.
PRIVACY
Heavy uses Apple's Screen Time API to read your total daily usage. It never sees which apps you use, which websites you visit, or what you do on your phone. It only knows one number: total screen time. That's all it needs.
DESIGNED WITH INTENTION
Minimalist interface. No bright colours. No gamification. No streaks to maintain. No guilt trips. Just a clean, monochrome experience that lets the weight speak for itself. Inspired by the behavioral science of Rory Sutherland: the best interventions don't inform you - they reframe what you already know.
Your phone is heavy. Pick it up and feel it.
RESOURCES:
Privacy Policy: https://pragmathema.com/#heavy
Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Nikola Knezevic, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nikola Knezevic
- Size
- 4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Unlock Pro $4.99
- Copyright
- © Nikola Knezevic 2026
