The best way to get quality ebook app development services is to look for companies with relevant experience. Technically speaking, any development company can build an ereader app for you, but a company with prior experience will know more about possible pitfalls as well as how to overcome them. They’ll also have a tech stack figured out, meaning the development will go faster and with fewer bumps in the road. You can check the portfolios of companies on Clutch. Mind Studios has experience developing an app for e-book publishers, our LiT app had full functionality including audiobooks and gamification elements.