Case Study: 1Weather achieves 3X mobile user engagement and 25M incremental app opens with MoEngage

1Weather, Top-rated U.S. Weather App, Scales Mobile User Engagement by 3X

1Weather, a top-rated U.S. weather app with more than 8 million active users, faced falling re‑engagement and shallow in‑app sessions while constrained to weather‑only messaging and strict U.S. privacy rules. To address this, 1Weather partnered with MoEngage and leveraged MoEngage Analytics, segmentation, cohorts and Dynamic Product Messaging to enable hyper‑local, non‑PII personalization of push notifications.

MoEngage ingested location and event data to build location‑specific user segments and ran two-tier campaigns (daily All User notifications and Custom Weather Alerts) that moved inactive users to active, enriched profiles with added cities, and optimized timing and messaging. The MoEngage solution drove 25 million incremental app opens, a 3X increase in mobile user engagement, a 10% lift in push CTRs, a 20% boost in Content Engagement Score (CES), and roughly 15% improvement in session metrics.

1Weather

Jeff Stone

Senior Engineering Manager