Even if the app is relatively simple and feature-complete, you need to go back to it at least once a year to make sure it complies with the latest guidelines/restrictions, replace deprecated APIs, and check dependencies for security issues.
Simple enough for a calculator, but if the app needs to do stuff in the background, communicate with web services, play multimedia content, or use the camera, it can become very time consuming.
It may make sense on Macs where users accept making a $10 or $20 one-time payment, but very few mobile users accept paying for apps at all, let alone $5 or $10. In that case, you need a lot of buyers or you’ll end up maintaining it out of pocket.
Even if the app is relatively simple and feature-complete, you need to go back to it at least once a year to make sure it complies with the latest guidelines/restrictions, replace deprecated APIs, and check dependencies for security issues.
Simple enough for a calculator, but if the app needs to do stuff in the background, communicate with web services, play multimedia content, or use the camera, it can become very time consuming.
It may make sense on Macs where users accept making a $10 or $20 one-time payment, but very few mobile users accept paying for apps at all, let alone $5 or $10. In that case, you need a lot of buyers or you’ll end up maintaining it out of pocket.