From an email regarding recent releases of mobile wallet and sapphire...

Sorry for the late reply. I was working through some early bugs in my beta release wallet.

https://wiki.egem.io/egemwallet

Here is a link to the current apk which does EGEM LTC BTC BTCtestnet ETH PIRL ETHO and our own egem test trading token ETTT. It also does my internal coin sapphire but it's hidden in this release because its just starting to work.

I don't have a lot of documentation for you yet, but one of the guys did two write ups...

https://gitlab.com/ethergem/egem-mobile/-/blob/master/EGEM_wallet_back_up.docx

(if you take the backup of the slide up secrets and paste it into a file that you save locally before you use your wallet it is best)

https://gitlab.com/ethergem/egem-mobile/-/blob/master/EGEM_wallet_use.docx   

and here is the youtube channel with videos.

https://www.youtube.com/channel/UCZIw0AWMZPSbgLfjNNMS_6g?view_as=subscriber 

We are telling everyone to be careful with large funds in any of these wallets until we get some road miles on usage. You can certainly use these for creating addresses and using them, but might want to seek a more secure storage mechanism if you are holding large funds for a long period of time. I might make a more hardware wallet maker that runs locally and allows you to keep storage funds off the grid. Technically, all the wallets made in the mobile app never leave the app. However, they are stored locally in the app storage and in memory while its being used. It's as safe as anything you use on a computer. If the computer itself (your phone) gets compromised then it can be an issue - although - even with me having the ownership of my phone I cant find where the storage is as a user of the phone, so maybe its safer then I give it credit for. I can't even hack it unless I use the app itself and I don't know that there are any hackers using the compromised devices on mobile. Anyway, it passes security checks when they run, and the underlying security is from google libraries which I am pretty sure isolate themselves to the application backend (i.e. making it extremely safe). I just would like to do more proper penetration testing before going mainstream with big funds.

If you ask me, would I use these wallets myself? Yes. For larger funds I might just transfer enough into one of these wallets to get a transaction done or a trade though. For long term storage I (as well as anyone else) is extremely paranoid and that means a process that is easier to read about with some searches. But, the end idea is I am designing this wallet for everyday use and at the merchant and to exchange with various mechanisms. So, to that end, I love this wallet for usage and feel it has great potential as crypto starts to go up now in a bull market.

ETH and LTC are low cost with high potential. Both are on the mobile wallet. EGEM is extremely low cost and going up...

egem.io

Good luck and lets talk soon.