We speak to Christian Selig about his work on the Apollo app for Reddit, including life as an indie developer and building deep integration with iOS. Detailed topics: What was the hardest part of making the Apollo app? Do you get much support from Reddit? What are your tips for doing great networking in apps? How do you keep up with Swift Evolution? Are you planning to use GraphQL? Will you try out Combine or other new APIs? How long did it take to make Apollo so successful? How do you structure a large iOS project? What's your advice for someone who wants to get into iOS development? What inspired Apollo's designs? How to improve accessibility on your app How did you perfect your implementation of dark mode on iOS? How did you design your app's themes? What was the inspiration for Apollo's widgets? When will Apollo for iPad ship for real? How many of Apollos's features come from its community? How do you track app usage while respecting user privacy? What's the best advertising approach for apps? Does being featured by Apple help get app downloads? How to reach out to Apple for app promotion Are you making enough money from Apollo? How to sustain revenue growth of indie apps How do you decide when a feature is ready to be released? Could Apollo go open source? Where is Apollo going to be in 5 years time?