[qompiler]

That's not allowed either, see https://developers.google.com/glass/terms

"No Fees. You may not charge end users any fees or collect any payments in order to download or access your API Client, or in connection with virtual goods or functionality of your API Client."

No ads, no data collecting and no fees in any form if you use the Mirror API. Maybe these rules won't be applied for Glassware that doesn't use the Mirror API?

[Samuel_Michon]

Fair enough, but I can imagine a scenario in which a user takes a picture with Glass, shares it on a social network, and the Glassware appends a message like 'Made with Supercoolapp, click here to download for your phone or tablet'.