Về Math Wallet
MathWallet is the Multichain Wallet for Web3 that enables token storage of 100+ chains including BTC, ETH, Polkadot, Filecoin, Solana, BSC, Cosmos etc, supports cross-chain token bridges and multi-chain dApp store. Our investors includes Fenbushi Capital, Alameda Research, Binance Labs, FundamentalLabs, Multicoin Capital, NGC Ventures, Amber Group, 6Eagle Capital.
What is BSC Testnet
The testnet is a test environment for Binance Chain network, run by the Binance Chain development community, which is open to developers.
https://docs.binance.org/guides/testnet.html