Comparison

Kaizen vs ZŌN

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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

About

ZŌN

This app helps you stay focused by blocking distracting applications during designated sessions. As you maintain focus, a virtual habitat grows and thrives, providing visual motivation. It offers various modes and soundscapes to enhance concentration and includes options for winding down.

Highlights
  • App blocking during focus sessions
  • Virtual habitat growth for motivation
  • Multiple focus modes (School, Work, Gym)
  • Nature soundscapes for deep work
  • Wind-down and sleep sessions
  • Screen time tracking against daily goals
Read full description

A living world grows while you focus. ZŌN enforces the commitment you make to yourself. Start a session and ZŌN blocks the apps that pull you away. Stay with it and your habitat comes alive. Quit early and you watch it fade. HOW IT WORKS • Choose School, Work, Gym or Other, or set a quick 15, 30 or 60 minutes. • Pick the apps to block. ZŌN holds the line for the length of your session. Calls and messages still reach you. • Every focused minute grows your habitat. Quitting early costs you progress you can see. FOUR LIVING BIOMES Coast, desert, highlands and rainforest, each shifting between day and night as you build it up. MORE THAN A TIMER • Studio-composed nature soundscapes for deep work. • Wind-down and sleep sessions that keep your phone quiet overnight. • Real screen time, measured against a daily goal you set. • Ranks and a leaderboard, if you like company. • Three ways out: breathing, math games or puzzles. A session can always be ended, never by accident. MEMBERSHIP ZŌN Premium unlocks everything. Monthly and Annual (billed once) both start with a 7-day free trial, and Annual is the best value. Where Apple offers it, Annual (billed monthly) spreads the year into 12 smaller monthly payments at a lower monthly price; it has no free trial, and cancelling stops the renewal while the remaining payments still apply. Prices are shown in the app in your local currency. Payment is charged to your Apple ID at confirmation of purchase. Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel in Settings. Terms of Use: https://intozon.app/terms Privacy Policy: https://intozon.app/privacy Step into the ZŌN.

Screenshots

Kaizen4 screens
ZŌN4 screens

Verdict

The call

The clearest difference is update cadence: ZŌN at every 3 days against Kaizen's every 2 weeks. ZŌN also leads on ratings volume (3 vs 1). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kaizen sells 2 in-app purchases, starting at $3.99 per month and ZŌN sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Kaizen against 5.0 for ZŌN. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

Kaizen ships an update every 2 weeks, ZŌN every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Kaizen versus ZŌN: the parameters behind the verdict, then further details
ParameterKaizenZŌN
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS16.416.0 — better
Further details — not scored
Size69 MB215 MB
Age rating4+12+
DeveloperMK DevelopmentALFREDO VALDIVIA PAZ

Customer experience

Kaizen

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ZŌN

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Kaizen

Subscriptions2
  • Premium (monthly)14 Days trial$3.991 Month
  • Premium (yearly)14 Days trial$39.991 Year
2 purchases

ZŌN

Subscriptions2
  • ZŌN Premium Monthly7 Days trial$3.991 Month
  • ZŌN Premium Annual7 Days trial$24.991 Year

Questions

Is Kaizen free?
Kaizen is free to download, with in-app purchases available.
Is ZŌN free?
ZŌN is free to download, with in-app purchases available.
Which has better reviews, Kaizen or ZŌN?
Kaizen and ZŌN are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Kaizen or ZŌN have ads?
Neither Kaizen nor ZŌN shows ads.
Which is updated more often, Kaizen or ZŌN?
Kaizen ships an update every 2 weeks, and ZŌN every 3 days. Most recently, Kaizen was updated on October 28, 2026 and ZŌN on October 31, 2026.

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