1. Before making any changes to your user interface (UI), think carefully and proceed only if you have thoroughly considered it.

In the initial release of my app, it only provided a basic feature called the Optimizer. You simply had to input your content, select a tone and dialect, click the optimize button, and then you would receive a rephrased version in seconds. However, I noticed that some users wanted to rewrite long content, so they would divide it into sections and go through the process step by step. As a result, I decided to launch a new version that allows rewriting of any length and provides additional functionalities, although it has a slightly more complex onboarding process.

I initially believed that the Optimizer and the Editor were similar, so I deleted the old version. However, I later realized that some of my users are not familiar with the new user interface, and others do not need to write lengthy content. As a result, I understood that the Editor may not be necessary for their specific needs, and the Optimizer could be a better alternative. This realization helped me understand why my competitors provide redundant features like an editor, summarizer, and rewriter. They could have combined these functions into a single solution, but they chose not to.

2. Avoid releasing a new version without conducting in-depth testing.

Before releasing the new version, I conducted tests. However, when users interacted with it, several unexpected bugs appeared. My backend did not respond accurately, resulting in the loss of a significant number of users. Therefore, it is crucial to thoroughly test any new version before deploying it to the production environment.

You should consider adding logs to your database to document any errors that your users may encounter. Additionally, it is important to implement error-handling solutions. While the backend system may experience occasional freezes, it is crucial to minimize waiting times for your users in the frontend. If an error occurs, halt the loading process in the frontend and kindly inform the user to retry.

3. Please ensure that an unsubscribe button is included in your marketing emails.

My domain was blocked by Gmail because my emails were reported as spam. I often send emails to my registered users. I suppose this issue could have been avoided if I had included an unsubscribe button.