The question of which app people cannot live without reflects how deeply smartphones are integrated into daily routines for communication, navigation, and productivity. Consumer research, such as a YouGov mobile usage survey, reveals that high daily device engagement makes core utility tools feel essential. Across tech publications like Tom's Guide and community discussions, users consistently rank navigation tools like Google Maps, messaging platforms like WhatsApp, and mobile banking applications as the digital tools they depend on most.

• yougov.com
• reddit.com
• quora.com
• tomsguide.com