Our team
Marcus Feldman
Marcus Feldman covers the behavioural-science side of the site — how habits actually form, why motivation fades, and which app design choices help a routine survive. He treats the research as a tool, not a prop: when an app cites a study, he checks whether the study says what the marketing implies it says.
He is most interested in the drop-off — the quiet week-three moment when the novelty wears off and an app lives or dies. He looks for the small things that carry people through it: a cue that fires at the right time, a step small enough to finish, a reward that still feels like one. He is wary of any app that leans on a big round number it cannot back up, or that hints it can treat something it cannot.
As the desk's second reviewer, Marcus reads every health-adjacent line for tone and accuracy before it goes live, and writes much of our habits, motivation and AI-companion coverage.
Areas of expertise
- Behaviour change
- Habit & productivity apps
- Motivation & adherence
- Reading wellbeing-app evidence claims
- Plain-language explainers
Knows about: behaviour change, habit apps, personal development apps, motivation
How Marcus evaluates apps
Marcus weighs each app's stated method against what the research genuinely supports, flags any claim that overreaches, and centres his testing on whether a habit survives past the first few weeks.
Articles by Marcus
- Do Habit Apps Actually Work? What the Evidence Says (2026)
- AI Companion Apps Explained: What They Do (2026)
- Best AI Mental Health Apps (2026): Tested & Ranked
- Best Habit Tracker Apps (2026): Gamified, Gentle, Minimal
- Does Mood Tracking Help? What the Evidence Says (2026)
- How to Build Better Habits That Actually Last (2026)
- Are Mental Health Apps Safe and Private? (2026)
- How to Set Goals and Keep Them in 2026
- How to Stop Procrastinating: Practical Steps (2026)
- What Is CBT and How Do Self-Help Apps Use It? (2026)
- How to Stick with a New App Past Week Three (2026)
- How to Choose an AI Companion App (2026 Guide)
Articles Marcus reviewed
- How to Choose a Personal Development App (2026)
- How to Cancel a Subscription App and Get a Refund (2026)
- How to Start Journaling for Self-Improvement (2026)
- Are Personal Development Apps Worth It? (2026)
- Best Mood Tracking Apps (2026): Tested and Ranked
- Best Journaling Apps (2026): Classic, AI & Quick-Log
- Best Meditation Apps (2026): Headspace, Calm, Balance & More
- How to Build a Self-Care Routine That Actually Sticks (2026)
- How to Meditate for Beginners (2026): A Practical Guide
- Gratitude Journaling: A Practical Guide (2026)
- Morning Routine Ideas for a Better Day (2026 Guide)
- Free vs Paid Wellness Apps: What You Actually Get (2026)
Find Marcus on LinkedIn.
Marcus works to our published review methodology.