Hi, what light wallet do you suggest to use?
You can use either NavPay on pretty much every platform (mobile / desktop / web), or NEXT if you're on desktop.
https://navcoin.org/en/wallets/Is there possibility to migrate coins from NavPay to Core wallet if for some reason NavPay will stop to work?
NEXT is lightweight? When I tried to start it, it asked to download blockchain...
And what is current blockchain size? Maybe it simpler to install core wallet?