developing cold storage wallet for multiple crypto

[crypto2161]

Hi,
I am going to develop an open source cold storage wallet with multiple crypto support and with the following features:

1- we do not save any private key and only ask for the private key when the user decides to send some coin
2- our app will be fully offline and it needs to get online only when the user decides to send some coin or retrieve transactions
3- open source
4- top 10 cryptos will be supported
5- very simple user interface

what do you think? is there any app like this?
I will use nodejs + angular + electron to build this app.
If you like to develop with me, mail me.
we will start our project in GitHub as soon as I get sure this app will be useful enough for cryptocurrency fans.

my email, farhad2161[at][yahoo.com]

[Cryptodude2020]

Hi,
I am going to develop an open source cold storage wallet with multiple crypto support and with the following features:

1- we do not save any private key and only ask for the private key when the user decides to send some coin
2- our app will be fully offline and it needs to get online only when the user decides to send some coin or retrieve transactions
3- open source
4- top 10 cryptos will be supported
5- very simple user interface

what do you think? is there any app like this?
I will use nodejs + angular + electron to build this app.
If you like to develop with me, mail me.
we will start our project in GitHub as soon as I get sure this app will be useful enough for cryptocurrency fans.

my email, farhad2161[at][yahoo.com]

Sent you email to your ID directly. Please check and respond if you are interested.

[Xiroartoni]

Hi,
I am going to develop an open source cold storage wallet with multiple crypto support and with the following features:

1- we do not save any private key and only ask for the private key when the user decides to send some coin
2- our app will be fully offline and it needs to get online only when the user decides to send some coin or retrieve transactions
3- open source
4- top 10 cryptos will be supported
5- very simple user interface

what do you think? is there any app like this?
I will use nodejs + angular + electron to build this app.
If you like to develop with me, mail me.
we will start our project in GitHub as soon as I get sure this app will be useful enough for cryptocurrency fans.

my email, farhad2161[at][yahoo.com]

Sometimes there is a lack of mobility when dealing with cryptocurrency. It would be great if such a wallet appeared on a smartphone with the ability to quickly convert to other popular currencies. In addition to such a wallet, it would be great to make a plastic card to be able to pay anywhere. Although I think the cards will soon begin to live out their last days, so instead of the card you can make a terminal. It will give the opportunity to withdraw cryptocurrencies to Fiat money. I have heard about several such projects. I don't know where they are now. It is a pity that cryptocurrencies so slowly penetrate into our lives. Most likely it is simply unprofitable to someone.

[hugeblack]

1- we do not save any private key and only ask for the private key when the user decides to send some coin

Did you mean that your application will work as a tool to generate offline private keys" such as paper wallets?"
Also, does this mean that it will not support segwit[bc1] "have a specific formula for the private key"?

Generally, the approach that you are going to do is oriented to a lot of wallets so you have to do a lot of hard work to prove yourself in the market.

what do you think? is there any app like this?

If I understand correctly, exodus does the same.