What was Instagram's original user interface like?

Instagram's original user interface, launched in October 2010, was quite different from what we see today. Here's an overview of its key features:

1. **Home Feed**: The main screen displayed a feed of photos posted by people you followed. This feed was presented in a vertical scroll, showcasing images in a grid-like format.

2. **Photo Display**: When you tapped on a photo, it would open in full-screen mode. Users could see the image along with a caption, the number of likes, and comments. The photo was centered on the screen with a simple, clean design.

3. **Navigation Bar**: At the bottom of the screen, there was a navigation bar with icons for Home, Explore, Upload (camera icon), Activity, and Profile. This bar allowed users to quickly navigate between different sections of the app.

4. **Explore**: The Explore tab, accessible via a magnifying glass icon, showed a grid of popular or trending photos and users. This was Instagram's way of helping users discover new content and accounts.

5. **Upload**: To upload photos, users tapped the camera icon, which opened their device's photo library or allowed them to take a new picture. The editing options were relatively basic at first, with filters being the main feature.

6. **Activity**: The Activity tab, represented by a heart icon, displayed recent likes and comments on a user's photos, as well as activity from users they followed.

7. **Profile**: The Profile tab, accessed by tapping the user icon, showed a user's own photos in a grid format along with their bio and follower/following count. It also included options to edit the profile or access settings.

The design was minimalist and user-friendly, focusing primarily on photo sharing and interaction. Over the years, Instagram has evolved significantly, adding new features, changing its layout, and refining its interface to accommodate a growing range of functionalities.