1. WhatsApp: WhatsApp is a widely used messaging app that allows you to send text messages, make voice and video calls, and share multimedia with friends and family. It also offers end-to-end encryption for privacy.

2. Instagram: Instagram is a popular social media platform for sharing photos and videos. It also includes features like Stories, IGTV, and Reels for creative content sharing.

3. Google Maps: Google Maps is a comprehensive navigation app that provides real-time traffic updates, turn-by-turn directions, public transportation information, and even offline maps for when you're without an internet connection.

4. Spotify: Spotify is a leading music streaming app that offers a vast library of songs, playlists, and podcasts. You can create your playlists or discover new music based on your preferences.

5. Microsoft Office Suite: The Microsoft Office Suite for Android includes apps like Word, Excel, and PowerPoint, allowing you to create, edit, and view documents on your mobile device. It's a handy tool for productivity on the go.

Please note that the popularity of apps can change, and new apps may have gained prominence since my last update. It's a good idea to check the Google Play Store for the latest app rankings and reviews to find the best apps that suit your needs and interests.