I just bought some BQX token from coinexchange.io, looking for a wallet to store it, not seeing any wallet download link from their site.
You can try to store your bqx in the myetherwallet that already supported the ecr20 token of bqx. Or you may use the metamask or try another wallet that already supported the custom token for the ethereum wallet wuch as bqx token. It may difficult to search about the dekstop.