FeelingVault
A private mood and emotion log for iPhone. A quiet, dark space to check in with how you feel, in under a minute.
Context
Most apps that touch on mood and emotion ask a great deal of you: an account, a subscription, a stream of data sent somewhere you cannot see. FeelingVault takes the opposite position. It is a private place to notice how you feel, and nothing leaves the phone.
What I built
A mood and emotion log for iPhone, built around a feeling wheel so a check-in takes under a minute. The interface is dark and deliberately quiet, so the act of checking in feels calm rather than clinical. A free Premium tier adds Mood Trends, a thirty-day calendar view and streaks.
Role
Designer and developer.
Privacy
This is the heart of the app. Apple’s privacy card states that the developer collects no data; everything you log stays on your device. There are no accounts and nothing to track. The privacy stance is not a feature bolted on at the end; it shaped the design from the start.
Outcome
Launched in 2026. Live on the UK App Store, free with optional Premium in-app purchases (Monthly Insights £1.99, Annual Insights £12.99). Category: Health & Fitness. Age rating 9+. Requires iOS 15.1 or later.
What it shows
Product thinking carried all the way to a shipped iOS app, and a privacy-first approach held to even where it limits what the app could otherwise do.