📍 How to Use
1
Stand at your starting point and tap Set Point A. Stay still while it collects a GPS fix. The display turns green when it's locked.
2
Walk to your destination. The distance updates live as you move. The number shows how far you are from Point A right now.
3
Tap Set Point B to lock in the final measurement. It collects another GPS fix and saves the result to your log.
4
Tap ↺ Reset to start a new measurement. Your log stays intact — only the points clear.
⚡ Lock Speed
Toggle between Fast, Medium, and Accurate when locking a point. Faster means fewer GPS samples. More accurate means it waits longer for a stronger, steadier signal.
🏌️ Golf yardages? Use Accurate — but please don't slow down play. Property lines and fence runs deserve Accurate too. Measuring your driveway? Medium works great. Checking how far it is to Grandma's house as the crow flies? Fast — she's been waiting long enough.
📡 GPS Accuracy — The Honest Truth
Your phone's GPS is genuinely impressive technology. It talks to satellites thousands of miles away and figures out where you are within a few meters. That said, it has opinions about where you are — and sometimes those opinions are wrong.
🏠 Indoors
GPS signals pass through walls the way your motivation passes through a Monday morning — weakened and unreliable. Expect 30–100 feet of drift even standing still. The app works indoors but results may be creative.
🌳 Near Trees & Buildings
Tall objects block and reflect satellite signals, causing "multipath error." Your phone might think it's 15 feet away from where it actually is. Urban canyons are particularly bad for this.
☁️ Cloudy vs. Clear Sky
Clouds don't actually affect GPS much — radio waves pass right through. What matters is how many satellites your phone can see. Clear sky = more satellites = better accuracy. Simple as that.
📶 Warm-Up Time
GPS chips need a moment to settle. If you just stepped outside, the first reading is a rough guess. Stand still for 30–60 seconds before tapping Set Point A and you'll get a noticeably better fix. Think of it as letting the GPS have its morning coffee.
🏔️ Elevation
Horizontal GPS (your position on a map) is reasonably accurate. Vertical GPS (elevation) is notoriously worse — typically 2–3x less accurate. Treat elevation readings as a useful estimate, not a surveyor's measurement.
📏 Why No Feet?
We intentionally left feet out. Phone GPS is typically accurate to ±10–30 feet outdoors — so displaying a result in feet would just be a more confident-looking wrong number. Yards are already at the edge of what GPS can reliably deliver. If you need foot-level precision, you need a tape measure.
📏 Realistic Accuracy Outdoors
In good conditions with a clear sky, modern smartphones are typically accurate to 10–20 feet. Our GPS averaging helps tighten that up. For most uses — golf yardages, fence lines, property distances — that's more than good enough.
🗑️ Deleting Measurements
To delete a single measurement, go to the Log tab and swipe left on it — a red Delete button appears. Tap it to confirm. If swiping feels unnatural, think of it like brushing something off the screen to the left.
To delete everything at once, tap the red Clear button in the top right of the Log tab. You'll get a confirmation prompt first so nothing disappears by accident.
🐛 Something Wrong?
If the app won't access your location, check that your browser has location permission enabled for this site. On most phones: Settings → Browser → Location → Allow.
If the distance display seems wildly off, you're probably indoors or near a large building. Step outside, wait a minute, and try again. GPS is not magic — it just looks like it most of the time.