iPhone · 52°16′00″N 4°45′00″E
On My Line draws your parallel and your meridian across the globe, then names everything standing on them.
On the App StoreA few of the places standing on 52°16′N
Everything at your latitude, west and east, around the whole globe. The feed reads as a journey outward from where you stand: how far along the line each place sits, and how far off it.
The same by longitude, north and south — the line that runs under your feet from pole to pole.
The exact point on the opposite side of the Earth. For most of Europe it lands in open ocean, so the app gives you the facts — coordinates, nearest land, distance to it — and lets the map say the rest.
Search a place by name, type coordinates in whatever format you pasted them in, or press and hold the map.





Nearly 59,000 places live inside the app, not on a server. Searching, computing your lines and finding your antipode all work with no signal at all — which is often exactly where the question occurs to you.
No accounts, no analytics, no advertising, no third-party SDKs. Your location is used on your device to draw your lines and is never transmitted anywhere. Summaries, photographs and weather are optional, and one switch turns off every network request the app makes.