Behind-the-scenes product decisions, engineering deep-dives, and stories from the ViviDiary team.
BlogHead of Product Ethan Cole explains why ViviDiary rejected building a complex evening routine hub to capitalize on the 2026 "bedtime stacking" TikTok trend.
Ethan ColeRead 
BlogIn light of the August 2026 TikTok mental health lawsuits, ViviDiary’s Head of Product explains why we killed our social features to prioritize anti-addictive UX and cloud-stored data safety.
Ethan ColeRead 
BlogTraditional habit trackers punish you for skipping a day. Here is why we killed the strict streak counter and redesigned ViviDiary to treat missed routines as valuable data.
Ethan ColeRead 
BlogHow the ViviDiary product team redesigned our push architecture for iOS 27's Apple Intelligence, balancing mindful nudges with the new Reduce Interruptions focus mode.
Ethan ColeRead 
BlogHow we cut our massive drop-off rate by killing the standard wellness app questionnaire and embracing a 3-second modular mood log.
Ethan ColeRead 
BlogWe built a 30-day habit challenge for ViviDiary, tested it, and immediately killed it. Here is the raw data on why streak-based UX destroys long-term retention.
Ethan ColeRead 