At a buck or few per app, how could it be otherwise? That type of pricing will work for Angry Birds and a handful of other games, but very poorly for most other types of software products. The scale you need, the sustained influx of new customers, well, it’s a place for mega stars, and people who think they can beat the odds at becoming just that.

That’s why I’ve been discouraging people from chasing dreams of a successful, sustainable software product business by pursuing paid apps. Far better be your odds at succeeding with a service where the app is simply a gateway, not the destination.

— Don't Base Your Business on a Paid App by Signal v. Noise

Refreshing to hear an argument for web based subscription services that are proving be more financially stable and profitable than paid apps.