It is simply immoral that a commercial trade should be in a position to profit at cost to taxpayers and charities, who are obliged to clear up the mess they are making. (bordercollierescue.org)
Great value considering it free and at no additional costs to use the app or to send messages. (consumeraffairs.com)
If the server goes bad, there's an additional cost to replace the hardware. (remonline.com)