Is the smart contract safe?

[dinarpay]

Hello
Is this smart contract the same as the user in
https://ngnt.org
Is it safe and strong?
Can it be used for a stable digital currency
Can it be without transaction fees?
And that there is no need for gas for the users
In the end, is it possible to run the smart contract and create a mobile application to work only my own currency?

[dumebi]

Hi. Its similar to NGNT

As regards safe, the NGNT contract is audited