location sharing app?

I got an earful from the wife last night at 10pm when she found out i'd cycled to work and was going to cycle home as opposed to taking the train/cycle. she's worried about me cycling late at night and in 0 or - deg temps. this is despite me telling her over and over its safer at night as there is less traffic and the flashy light attracts more attention. shes worried i'll get knocked off and die in the cold! 
anyway - is there a good location sharing app (android) that anyone can recommend? there used to be a feature in goggle maps (latitude) but that has gone - why do they do away with good ideas like this and sharing with gps/phone? ok i know there is this function in goggle plus but i had a look and its far from straight forward and it looks like they are trying to make their own facebook type app, really not what i want. ideally i'd like it to run in goggle maps so once i select 'share with mrs rbj' it will automatically share my location in her goggle maps on her phone. this will also be handy when i'm on early shift to see were she is so i can get the dinner on!

anyway - is there a good location sharing app (android) that anyone can recommend? there used to be a feature in goggle maps (latitude) but that has gone - why do they do away with good ideas like this and sharing with gps/phone? ok i know there is this function in goggle plus but i had a look and its far from straight forward and it looks like they are trying to make their own facebook type app, really not what i want. ideally i'd like it to run in goggle maps so once i select 'share with mrs rbj' it will automatically share my location in her goggle maps on her phone. this will also be handy when i'm on early shift to see were she is so i can get the dinner on!
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I would use it, but most of my commute seems to be phone data blackout - being rural there are only a few routes I can take so I tell SWMBO which one I'll do (assume if no variation then it's the default-sortest route) and she knows how long I usually take.
Doesn't stop her worrying though ... nothing will ....
Actually, we did use Find my iphone summer before last when I rode home after a works party - I'd preset the route I was going to take and once home she asked why I carried on up the hill rather than go along the valley .. strangely I had gone through the valley and it was the phone reporting an incorrect position! Didn't help that data connection through the valley was useless so she had no further update until I was home - some 20 minutes later!
HTH,
_
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So if you were looking for an excuse to buy a new Garmin, just tell your wife that it is a safety device. Safety first!
I tend to use Glympse if I'm meeting the wife as it's far more accurate, although it hammers battery life.
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I believe Find Friends has been changed on iOS8 so that the phone updates the service with there it is periodically - before then it relies on a request from a viewer that then polls the phone for it's current location - which is fine if you're in a good signal area (or have wifi) but rubbish if you're out in the country.
The push system of Glympse and the Garmin 5/810 and 1000 may require more battery but unless you're out for a long day ride most phones can cope with the additional demand for 30-60 mins. Although the initial send does require a data connection which can be an censored if you don't have a reliable connection in your usual places.
Though it will require her to log in to your Google account (might not be a good idea if you've been buying stuff in the "sales").
Works the same as Apple's "Find My iPhone"