# Mobile Phone offline maindenhead or mgrs web app [closed]

I read an article in a magazine or online about a (.gov, I think) site which showed two, four to six character sequences in a mobile phone browser window. The letters from left to right indicated lower to higher precision positioning. As precision decreased, the characters on the right turned red, indicating a best guess accuracy.

There wasn't an app to install. It was a web page where you would visit it once while on 4G/WiFi, let it download some data to your phone (I think it was an HTML5 web app), then it could be used offline, so long as you had a GPS signal.

I'm going on a trip soon and I'd like to use this app, but I forget what the website was. I saw it within the last year. Does anyone have any clue what the site could be? It could have used maidenhead or MGRS, but I'm not 100% sure.

• So, your question is "what website did I see, but can't remember?" -- or is your question "I like to know if there is an app which can display the maidenhead locator on my mobile phone?" -- if the later then please specify what mobile phone you are using. – Edwin van Mierlo Aug 15 '16 at 13:06
• The former. I was curious to see if anyone else has come across the same site. – user38537 Aug 15 '16 at 13:58
• OK, I am out, I seriously do not know what you don't know nor can remember :-) – Edwin van Mierlo Aug 16 '16 at 7:06
• Yeah I figured it was a long shot. Thank you though. – user38537 Aug 16 '16 at 12:44