As for announcement on January 24, 2019. Plus token wallet 2.40 will be online on March 2019. Thus, the wallet will be decentralized wallet. Which you can use your private key to get your crypto-currency at other decentralized wallet and more safer.
Thus, our leader inform that please keep your private key safely once the version 2.4 is launch. If you forgot your private key, go to app setting. Then view private key and follow the instruction to get your private key.