Developing an app is and have always been an endeavor. From my experience, developing an app can take around six months, when you will finally release it. However, it might take even longer for apps that have many features or are just complex. Let's just go through the reasons WHY it takes so long to develop and release an app?
There are a few steps each mobile app development company makes before going in to make a mobile app. Although the softwares are quick as well as the creative developers, there are some steps everyone makes to ensure a good release of the app.
1. Understanding Your Vision (min. 1 week - max. 2 weeks)
Understanding your own vision is something not so many spend their time doing. Most of the developers would just take your idea and start making an app out of it, the result being something catastrophic or something that you've never even thinking about (in a negative way). In any case, you should spend at least one week thinking about exactly what you want to do and how you envision your app. Only then will you be able to jump into designing it.
2. Designing and Testing (min. 6 weeks - max. 8 weeks)
Now it's time to design your idea and to put it to tests. You can even show the initial design to more people and get their ideas or you can even ask them to try the app out. Remember, this is still beta, so any feedback you get back will be appreciated.
3. Implementing Feedback and Stabilizing the App (min. 1 week - max. 2 weeks)
If you've received feedback of any kind from the testers, you should try and implement it and then stabilize the app. At this stage, stabilization includes checking if the app works on all mobile devices, regardless of the brand.
4. Release (around 2 weeks)
Now it's the time to finally set loose your killer app and see how it flourishes into an app that all people use, have fun and always give you positive feedback. Although it will be released almost instantly on Google Play Store, App Store may take even up to two weeks to approve it, so sit tight and don't lose hope!
These are the most basic steps every app development company follows. Of course, adding up all the revisions needed or things that need to be added, you will slowly see that it will take around six months to complete the project.
However, don't be eager to release the app, try to think it through and make sure that everyone will love. You wouldn't want your app to be disliked by everyone just because it was released way too early. Make sure that it is compatible and smooth on all devices and you should be on the road to fame!