I purchased a Garmin In Reach Mini, signed up for a monthly plan and have it activated. I paired it with my cell phone, downloaded the EarthMate app, and sent a test message to my spouse. She received the test message, but when she replied to it, I didn't receive her reply test message to me. The message I sent through Earthmate came across as a text message to her. Does she need a particular app on her phone to use the messaging system? Is Earthmate the most ideal form of communication? I also see that there is a Garmin Messenger available in the App Store. Is this more beneficial? Are there any other app recommendations I should be downloading to best utilize the Garmin? Thanks all!