Sprint MVNO Karma, is currently offering a deal that will run until April 8th. The deal is, those that buy a Karma Go hotspot device coupled with a Pulse 5 GB data plan will get their second month of service free.
The Karma Go hotspot device will run you $149, while the 5 GB Pulse monthly hotspot plan costs $40/month. The Karma Go will provide a wireless signal for up to 8 devices with average download speeds of 6-8 Mbps. There are no hidden fees or contracts required for service.
You can see how the Karma Go compares to other wireless hotspot plans with the BestMVNO list of hotspot plans.