Colour Adjuster vs Hako

Closed-signup app for use in a lab study into colour vision at the University of Sussex.

Find your focus. Keep it. Hako is a calm study timer that makes focus feel less lonely. Study on your own, with a friend, or in a room full of people working toward the same thing — and see your hours add up. STUDY YOUR WAY • A focus timer with Pomodoro, Animedoro, Ultradian and more, or open-ended free study • Subjects, tasks and exam countdowns, all in one place • Ambient sounds — rain, forest, stream and fire — that keep playing with the screen locked • A Live Activity and widgets, so your session is always a glance away • Ten calm color themes, from Japanese indigo to matcha green BETTER TOGETHER • See which friends are studying right now and join them • Study Together: start a shared session with a friend and keep each other on track • Study rooms for up to 30 people, with a shared timer, chat and assignments • Weekly challenges and leaderboards with your friends SEE YOUR PROGRESS • Daily goals, streaks and a clear picture of where your time goes • Session summaries with your focus time and notes STAY ON TASK • Optional Study blocking uses Screen Time to shield distracting apps while a session runs. You choose what stays allowed, and your selection never leaves your device. EVERYTHING IS FREE Every feature in Hako is free — no subscription, nothing locked: • Animated study scenes for your timer, rooms and friends • Your own study techniques with custom study and break rhythms • Detailed statistics: your best hours and days, a yearly heatmap, and time by subject • Compare your stats side by side with a friend • Widgets: study heatmap, stats and deadlines • Plenty of room for subjects, tasks, countdowns and rooms Terms of Use: https://hakostudy.com/terms Privacy Policy: https://hakostudy.com/privacy