MathWallet has supported Injective
Follow guide below and start using Injective:
First, install the MathWallet latest version from https://mathwallet.org
On the chain list click + button at bottom, and open Injective
Then, on the chain list find the Injective and add a new wallet

Then you will able to receive and send tokens on Injective

Go to ‘Browser’ dapp, you will find all Injective dapps.
For iOS users, please enter mathdapp.store to open the dapp list

For more dapps on Injective, click: