Trip 03 · Recording
14:03:27 UTC · synced
Position
37.7749°N
122.4194°W
122.4194°W
Recording · 10 s · syncing to Mac
10,248 points · ±3.2 m
Elevation
112 m
Open LightGPX before you start shooting. It records a GPS point every 5, 10, 30, or 60 seconds. Works with the screen off. Works in airplane mode. A Live Activity on the Lock Screen shows your point count and elapsed time.
Point your camera at the iPhone's clock screen and take one photo. The app reads the timestamp with Vision OCR and stores your camera's offset on the trip. Every shutter press from then on is tied to a GPS point.
Your trip is already on the Mac, synced in about 1.5 seconds. Point the app at your folder of RAW files. GPS gets written straight into EXIF. Open the folder in Lightroom — every photo is on the map.
Trips, tracks, and GPS points appear on your Mac about 1.5 seconds after your iPhone records them. No refresh button. No manual import step.
CR3, ARW, NEF, RAF, DNG, ORF, RW2, RWL, SRW, plus JPEG and HEIC. Direct EXIF. No XMP sidecars unless you want them.
Canon, Nikon, Sony, Fuji, Leica, film — if it records a timestamp, it gets a location. Your camera does not need GPS.
The format every photo editor already reads. No proprietary file format. No vendor lock-in if you switch tools later.
Your location data lives in your own account, locked to your user ID. No analytics SDKs. No ads. No resale of your routes.
About 5% per hour on an iPhone 16 Pro at 10-second intervals. A full shoot day on a single battery, no power bank required.
Scale
Ten thousand GPS points.
Already on your Mac.
LightGPX writes standard GPX and standard EXIF. Every modern photo editor reads at least one of those formats — so your photos show up on the map without any plugin or import dance.
Everything that matters on a real shoot.
Sync runs on Wi-Fi or cell. With no signal, the iPhone keeps recording and queues every GPS point locally. The queue drains as soon as you reconnect, and your Mac picks the trip up automatically.
About 1.5 seconds. The moment the iPhone pushes the data, Supabase Realtime wakes the Mac app and pulls the new points down. No refresh button. No scheduled import.
You lose the points before you pressed record. The app does not guess where you were. Best practice: start the trip the night before a shoot day and let it run.
Yes. Any camera that records a timestamp can be matched, all the way back to early-2000s digital. For film, use the scanner timestamp or your own logged shoot time.
The Mac app writes GPS directly into EXIF for CR3, ARW, NEF, RAF, DNG, ORF, RW2, RWL, SRW, plus JPEG and HEIC. Same way every other geotagger does it. If you want to be safe, point it at a working copy.
On your iPhone and Mac first, then on your private encrypted cloud account. No third-party analytics. No ad networks. No resale. Delete the account from inside the app and every point is gone.
100 MiB free per account at launch. That covers hundreds of shoot days at 10-second intervals. Paid tiers with higher quotas are planned.
Pricing is not final. TestFlight is free for early users. After launch, expect a single-digit US dollar one-time purchase plus an optional monthly tier for higher cloud quotas.
