Hi all, long time lurker, first time actually posting anything.
I have recently come into contact with mPort, which has placed a booth in my local shopping center, so I gave it a whirl.
This is a 3d body scanning service, that requires you to physically enter a mPort scanner, strip to your undies, and allow an infrared scanner to 'map' you.
These scanners have a companion app for Android and iPhone, and the idea is that you can get some basic info if you are a free user (weight and height only) or you can keep track of lots of information if you are a premium user (full 3d body scan avatar, hip, waist, bicep, neck measurements, estimates of body fat etc.).
Premium entitles you to track your info over time and see changes as they happen. Premium also entitles you to unlimited measurements (free, can do this too, but you cannot keep track of the results). Cost is for 12 months subscription, they do give you 1 month free, but you must enter a credit card/paypal details to enable this. You can cancel during the 1 month without being charged.
There seems to be quite a few negative reviews of the service as a whole, presumably people want to get it all for free, which is natural, but in fairness to the system it does give some really interesting insights into your body shape and size over time. If you are like me and have some spare kilos to lose, then this may be good for you to help keep track, and allow you to target specific problem areas during your exercise routine.
There are numerous other features on the site and app, but I have not used them so cannot comment, however the body mapping is an interesting tool, and I am finding it to be a really motivating tool.
Check out their site/app and see where scanners are located near you, and if there is one near you and you could use some additional motivation (or guilt) I think you could spend $40 in far worse ways.
maybe include the subscription period (per year).