Do not ever ever ever load company stuff on a personal device.
Keep that veil of separation IP between company and personal.
If company demand you use a mobile device, let them provide it and carry 2 phones.
Remember if company info touches a device it can be subpoenaed and siezed if the company is sued.
Company data and data charges on your phone are not reimbursed.
Used to be if the company wiped their partition, it wiped the whole phone.....this has been corrected, but just proves the point to keep things separate.