Yes I think that as a newbies they should not trust mobile apps that they will see in Google play store because even though it is from google play. They should pay attentin on what can happen and they should put attention on what they will do in those downloadable app that shows cryptocurrency because it might be an app developed by the scammers or hacker that might try to hack your information on yourself. My advise to newbies and beginners here in cryptocurrencies is be wary of your surroundings always and dont let your guard down because you will not know what can happen to you once ypu met scammers and if they will try to scam you. Dont trust strangers here and have someone that you know that you know well.