Precision Bubble Level vs Levelr

When your hands are full, your wrist has the answer. PrecisionLevel is a digital spirit level for your iPhone and Apple Watch. Place either device on any surface — within a second, you know whether it's level. No squinting at a tiny bubble in a plastic tube. YOUR WRIST, YOUR LEVEL Hanging a shelf while holding it in place? Leveling a washing machine in a tight space? Glance at your watch instead of reaching for your phone. PrecisionLevel on Apple Watch is a standalone app — no phone required. SUB-DEGREE ACCURACY Hardware accelerometer and gyroscope with Butterworth filtering deliver smooth, precise readings. One-tap calibration compensates for your specific device's sensor quirks. SEE IT AT A GLANCE A responsive liquid bubble shows tilt in every direction. Directional arrows tell you which side is high. Color-coded feedback — green when level, amber when close, red when off. You never have to read a number unless you want to. BUILT FOR THE JOB • Multiple units: degrees, percent grade, mm/m, in/ft • Hold & lock — freeze the reading, then move your device • Dark & light themes — OLED-friendly dark mode or high-contrast light • Configurable decimal precision • Minimal battery usage Free. No ads. No in-app purchases. Ever.

Level your RV, trailer, or fifth wheel in seconds — right from your iPhone and Apple Watch. Levelr uses your phone's built-in sensors to show a real-time, precision bubble level for both pitch (front-to-back) and roll (side-to-side). The Apple Watch companion lets you see the live level reading on your wrist while you're outside at the jacks — no more walking back to check the screen. No external hardware. No Wi-Fi. No account. Just open it and level. WHY RVers LOVE LEVELR Getting your RV perfectly level isn't just about comfort — it affects your refrigerator, your slide-outs, and your sleep. Levelr gives you the precision and clarity to get it right every time, from the driver's seat or outside at the jacks. REAL-TIME BUBBLE LEVEL Watch a live bubble indicator respond instantly as your RV moves. The classic spirit-level look is designed to be read from 6 feet away while you're adjusting your jacks — big, bold, and unmistakable. PITCH & ROLL AT A GLANCE See both axes simultaneously: front-to-back tilt (pitch) and side-to-side tilt (roll), with live degree readouts precise to the tenth of a degree. SMART DIRECTION GUIDANCE Not sure which jack to move? Levelr tells you exactly what to do — "Lower front-left," "Raise rear-right" — based on your current tilt. No more guessing from afar. COLOR-CODED STATUS Green = you're level Yellow = getting close Red = needs adjustment The moment you hit your target, you'll feel a satisfying haptic pulse and see the screen go green. ADJUSTABLE TOLERANCE Set your own precision threshold. Whether you need ±0.5°, ±1.0°, or ±2.0°, Levelr adapts to your standard. Perfect for everything from a quick overnight stop to a long-term site setup. CALIBRATION If your phone doesn't sit perfectly flat in your RV, just tap "Set as Level" to calibrate to your surface. Levelr saves the offset so it's always accurate for your setup. APPLE WATCH COMPANION The killer feature for solo RVers: see your live pitch, roll, and level status right on your wrist while you're outside cranking the jacks. No more running back to the phone to check. The Watch app shows the bubble, the degree readouts, and goes green the moment you're level — haptic tap included. ALWAYS-ON MODE Levelr keeps your screen awake while you work so you can glance at it from outside without the display timing out. Optional brightness boost for sunny days, flashlight toggle for nighttime setups. PRIVACY-FIRST Levelr has no account, no login, no ads, and no data collection. Everything stays on your device. We don't know you exist, and we think that's great. DESIGNED FOR REAL CONDITIONS Dark, low-light-friendly interface — easy to see at night Monospaced degree readouts so numbers don't jump around Apple Watch companion for hands-free wrist monitoring Works completely offline Levelr is built for RV owners, by people who've spent time leveling in gravel lots at midnight. It's the tool we wished we had.