Remember the iPass deal (RIP) from US Mobile?
Lufthansa Innovation Hub is offering a similar unlimited in-flight WiFi plan via their app (/). Service provided by iPass.
The cost for the PLUS subscription, providing international inflight wifi access, is €29.99 per three month period. The list of supported airlines is below. YMMV using the service on non-listed airlines although iPass does partner with GoGo, Deutsche Telekom and Panasonic Avionics Corporation.
According to an email I received, they may be limiting sign-ups to the first 2,222 members.
H/T: The Points Collector