Zoleo is filled with hidden charges, and a 'poor tax.' Not only do you have to subscribe for 3 months to use the device, you are also required to pay an activation fee of $40. None of this is explained on the packaging. Moreover, Zoleo does not disclose the rate of transmissions for messages that the device sends in the background. If you choose the cheapest plan, as I did, you will exceed your number of messages in a day or less. You will then be charged an extortionate amount for each message over this quota.
There are far better products on the market that are deserving of your money.