# PSIence - Tire pressure calc

> For road, gravel, MTB & more

Canonical page: [https://chrome-stats.com/d/id6772916222](https://chrome-stats.com/d/id6772916222)

## Overview

- **ID:** `id6772916222`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Martin Luknic
- **Category:** Health & Fitness
- **Version:** 1.0
- **Last updated:** 2026-06-23
- **First published:** 2026-06-22
- **Size:** 35 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/psience-tire-pressure-calc/id6772916222)
- **Website:** [https://psience.luknic.sk/](https://psience.luknic.sk/)
- **Privacy policy:** [https://psience.luknic.sk/](https://psience.luknic.sk/)

## Description

Get the right tire pressure for any bike, any discipline. Physics-based. Brand-neutral. Road, gravel, trail, enduro, and downhill — all in one app.

PSIence takes the guesswork out of tire pressure. Whether you're prepping a gravel bike the night before a ride or adjusting at the trailhead, PSIence gives you accurate front and rear pressure recommendations in seconds — for any discipline, any setup.

WHY PSIence?
Most pressure calculators cover one or two disciplines, ignore luggage weight, or only work with a specific brand's tires. PSIence covers all five disciplines — road, gravel, trail MTB, enduro, and downhill — with a single brand-neutral tool built on real physics.

HOW IT WORKS
Enter your rider weight, bike weight, tire widths, surface type, and tire system. PSIence uses a physics-based algorithm derived from the 15% sidewall drop model to calculate the optimal contact patch for your load — then outputs separate front and rear pressures in both PSI and bar.

FREE FEATURES
• Road, gravel, trail MTB, enduro & downhill disciplines
• Separate front and rear pressure recommendations
• PSI and bar output
• Surface type selection (smooth, hardpack, gravel, loose, mud)
• Tubeless, tubed, and tubeless + insert support
• Save up to 2 bike setups locally — no account needed

PRO — ONE-TIME UNLOCK
• Unlimited saved bike profiles
• Pack & luggage weight input (the only calculator that accounts for bikepacking gear)
• Rim inner width input for precise contact patch calculation
• Casing type: lightweight, standard, reinforced (EXO+), DH
• Hookless rim safety check with automatic pressure cap
• Wet conditions adjustment
• Formula trace — see every step of the calculation
• Share your setup with your riding group

WORKS OFFLINE
Every calculation runs on-device. No internet connection required. Your setups are saved locally — no account, no subscription, no cloud sync required.

PSIence. The science of PSI.

## Rankings

- #1,821,047 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6772916222)