Kaizen vs Habit OS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kaizen
This app helps you stay focused by blocking distracting apps and websites. It also includes a habit tracker, task manager, and live focus rooms for collaborative study sessions. Customize timers and themes for a personalized productivity experience.
- Customizable Pomodoro timer
- App and website blocking
- Habit tracking with forgiving streaks
- Live focus rooms for co-studying
- Task management with priorities
- Themed backgrounds and focus music
Read full descriptionHide full description
Kaizen is a focus timer that blocks your distracting apps, tracks your habits, and lets you study alongside others in live focus rooms. Start a session and the apps you picked stay blocked until your break. Free to use, with no ads. Premium features are marked below. POMODORO TIMER & STOPWATCH • Presets: Classic (25/5/15), Quick (15/3/10), Extended (50/10/30), Long Focus (90/15/30), or your own • Focus 5 to 180 minutes, short breaks 1 to 60, long breaks 5 to 120 • Stopwatch: count up with no fixed end and finish when you're ready • Auto-start runs sessions back to back while Kaizen is open, up to your long break • Keeps time in the background and notifies you when a session or break ends • Fullscreen mode that shows only the timer • Tag each session (Work, Study, and more) to see where your focus goes APP BLOCKER Kaizen uses Apple's Screen Time to block the apps and websites you choose, even with Kaizen closed: • During focus sessions, until your break • Block now: until you turn it off • Schedules: block a set of apps at the same times every week • An optional "Open anyway" button: you set how often, how long to wait, and for how long • Free: up to 3 apps or websites and 1 schedule • Premium: up to 50 apps and 8 schedules, Strict mode (stays blocked when you pause) and Locked mode (no ending a session or schedule early, with one emergency end a week) Your choices stay on your device. Kaizen can't see which apps you picked. HABIT TRACKER • Check-off habits, or timed habits your focus sessions count toward • Schedules: daily, specific weekdays, or a number of times per week • Forgiving streaks: a skipped day doesn't break them • A consistency score and trend chart for every habit • Backdate any past day and keep your full history • Reminders that follow each habit's schedule • Up to 5 active habits free, unlimited with Premium FOCUS ROOMS Stay on task next to other people, without a video call: • Join any room free, or host a private one and invite up to 3 friends with a link • See who's focusing, on a break, or paused, with live timers • No camera or microphone, just your avatar and quiet company • Premium: host public or bigger rooms (up to 50 people), and share the task you're working on Many people with ADHD use this kind of body doubling to get started and keep going. TASKS • Jot a task down in one line now, plan the details later • An unlimited inbox, so capturing a thought never hits a limit • Priorities, due dates, subtasks, time estimates, and reminders • Pick a task before a session and your focus time counts toward it • Today, Tomorrow, and Overdue badges keep deadlines in view • Up to 7 planned tasks free, unlimited with Premium THEMES & FOCUS MUSIC • 70+ backgrounds across Lofi, Nature, City, Cozy, Space, and Minimal, including animated ones • Lo-fi, ambient, nature, white noise, and classical tracks, saved for offline listening • Mute music on your breaks • Premium: every theme, the full music library, and your own photo as the background STATISTICS & STREAKS • Daily, weekly, and monthly focus totals • Charts for focus over time, by hour, by weekday, by tag, and by session type • Session history showing which tasks and habits each session counted toward • Re-tag or delete any past session • A daily focus streak • Premium: yearly and all-time statistics MADE FOR • Students studying for their exams • Remote workers and freelancers who need time for deep work • People with ADHD who focus better with structure and company • Anyone who reaches for their phone when they should be focusing WORKS EVERYWHERE Use Kaizen on iPhone, iPad, your computer, or the web. Your tasks, habits, and stats sync across all of them. Start a focus session, block your distracting apps, and see how much more you get done. Terms of Use (EULA): https://my-kaizen.com/eula Privacy Policy: https://my-kaizen.com/privacy Terms & Conditions: https://my-kaizen.com/terms Questions? Reach us at support@my-kaizen.com
Habit OS
This app helps you build and maintain daily habits with a clean interface and progress tracking. It offers planning tools, journaling features, and customizable themes to support consistent results and well-being.
- Daily habit tracking with clear targets
- Streak tracking and momentum visualization
- Daily planner with reminders
- Journaling and mood tracking
- Customizable themes and feedback
- Home screen widgets for quick access
Read full descriptionHide full description
Meet Habit OS – the number #1 - Daily Habit Tracker & Planner You know that feeling when you almost had a good week, but life got in the way? Habit OS is the daily habit tracker, routine builder, and life planner that helps you show up for yourself every single day — no overwhelm, no guilt, just real progress. Actually build habits that stick Create daily habits with clear targets like "Drink 8 glasses of water" or "Read 30 minutes." Log completions in one tap from a clean Today view. Track streaks, chase personal bests, and let the momentum bar show you how your day is going at a glance. See how consistent you really are View your habit stats across Today, Week, and Month. Get automatic insights that celebrate what's working and gently guide you back on track. Drill into per-habit totals to see exactly which routines are thriving. A student's best friend Deadlines, lectures, late nights, and early mornings — student life is a lot. Build study habits like "Revise 45 minutes" or "No phone after 11pm," plan your day around classes, and use Daily Notes to journal your progress. Whether you're fighting procrastination, fixing your sleep routine, or building healthier habits — Habit OS turns good intentions into consistent results. Plan your ideal day Use the built-in daily planner to schedule your morning, afternoon, and evening. Set reminders for important events like "Gym at 7:00" or "Lecture at 10:00" so nothing slips. Review all upcoming reminders in one simple list. Journal, reflect, and reset Open Daily Notes to jot thoughts, wins, and lessons. Use bullets, checklists, bold, and highlights to structure your daily reflections and mood tracking. Pair notes with your habit stats to understand how your routines affect your productivity and wellbeing. Make it yours Switch between multiple themes — dark, pastel, sunset, and more. Enable confetti, sounds, and haptic feedback to celebrate every habit logged. Turn on encouraging messages for gentle motivation throughout the week. Habit widgets for your Home Screen Add widgets to track today's progress and log habits without opening the app. See completions, remaining actions, and your daily percentage at a glance. If you've tried habit trackers, routine planners, or daily journals and found them too noisy or complicated — Habit OS is your answer. It's calm, focused, and genuinely satisfying to use every day. Download Habit OS and start your streak today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://devibrium.co.uk/privacy/
Screenshots
Verdict
The clearest difference is rating: Kaizen at 5.0 against Habit OS's 1.0. Kaizen also leads on iOS requirement (16.4 vs 18.6). Habit OS's advantage is update cadence (every 4 days vs every 2 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Kaizen sells 2 in-app purchases, starting at $3.99 per month and Habit OS sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Kaizen holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Kaizen ships an update every 2 weeks, Habit OS every 4 days. Both last shipped on October 30, 2026.
| Parameter | Kaizen | Habit OS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 18.6 |
| Further details — not scored | ||
| Size | 69 MB | 15 MB |
| Age rating | 4+ | 12+ |
| Developer | MK Development | Devibrium LTD |
In-app purchases
Kaizen
- Premium (monthly)14 Days trial$3.991 Month
- Premium (yearly)14 Days trial$39.991 Year
Habit OS
- Premium Weekly7 Days trial$2.997 Days
- Premium Monthly7 Days trial$4.991 Month
- Premium Yearly7 Days trial$29.991 Year









