Yes it's electrum , l learned lot of stuff here and about cold wallet , really very cool
I hope you know how to make a cold wallet aka air-gapped wallet step by step on a complete offline device and you never ever have to come online which makes it invulnerable to potential attacks.
I wrote how to do it, so take a look at it and see if you did everything right
Download the latest version of Electrum from
https://electrum.org/#download and then verify the signatures before installing it.
[GUIDE] How to Safely Download and Verify ElectrumThen copy the downloaded file to your air-gapped device and install it, then restore your wallet with your seeds "Standard Wallet -> I already have a seed".
Then go to "Wallet -> Info" and get your "Master Public Key"
After this go to your device which is connected to the internet create the "watch-only" wallet (Standard Wallet -> "Use a Master Key)
By this method device will be never connected to the internet so you no need to worry about your seeds being exposed to malware or anything.