Answer
This opens the app’s store listing. The app may also offer a native store review dialog after successful use, at a quiet moment rather than during typing, generation, uploads, recording, playback or other dialogs.
Ratings are optional. They do not earn credits or unlock features. Any reaction, not just a positive one, can count toward eligibility for a later review prompt. The app store decides whether its dialog appears, and Hashchats cannot tell whether you submitted a rating.
Automatic prompts are limited to at most three attempts in a rolling year per account and device. Repeats require at least 90 days and five additional successful results. Updates do not reset this history.
Phone and desktop browsers retain the Enjoying Hashchats? notice and I’ll spread the word action rather than a native store review dialog.