LPG App and list of Garages

Just found an App which is available for Android and perhaps also I phone, which gives a map and details  of garages in the UK selling LPG. It also includes the cost per litre. Just search your 'Playstore' for apps. It is called FillLPG and has a blue coloured logo.The App is free. It does not state whether these allow refilling of loose cylinders but there are certainly some listed which I know do accept them. 

If you have internet connection on your travels the following Safefill web site lists garages who participate in cylinder filling.

http://www.safefill.co.uk/refilling-retailers.html