Congrats on the success! Can you share a link to your app?
Also, do you think the only way to get discovered (for indie devs) is to pick app ideas that will match nicely to keywords that users search for? If you don't have a marketing budget, is there any other way to get discovered?
I'm going to be doing a similar writeup as my app launches in 2 weeks. I've got a small budget. All the design+dev was me, but I'm spending about $300-$400 on marketing. We'll see how that goes.
If anything I believe you should be spending more on marketing nowadays. There's no real way, at least to my knowledge, to search for a niche hole with keywords. I do, however, like to think of an app idea and then spend an hour search various keywords and seeing the results/competition. https://appstorerankings.net/ is a good website to find the keywords of an app. I combined common keywords in the app that I'm releasing with common keywords that are missing among competitors that yield few results.
Again, I haven't launched this app (my 7th) yet, but I'll be doing some analysis of its success using the marketing budget and keyword research.
I agree it's hard to do really detailed research similar to, say, the Google Keyword Tool. It's mostly a gut check. "Does this have a lot of competition? Does this keyword appear to get a lot of searches?"
Agreed. Doing a freemium model where you can save only save 1 poem. Unlocking adds theming, Facebook+Twitter connection, and unlimited poems. Worth $.99? That's subjective, but this entire app is more of an experiment than a business. Just going to iterate and improve on the next one.
Also, do you think the only way to get discovered (for indie devs) is to pick app ideas that will match nicely to keywords that users search for? If you don't have a marketing budget, is there any other way to get discovered?