Kaizen vs Noiseless
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kaizen
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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: • Your apps are blocked during focus sessions and open again on your break • Block now: block them right away, until you turn it off • The block stays in place even if Kaizen is closed • An optional "Open anyway" button: you set how often, how long to wait, and for how long • Block up to 3 apps or websites free • Premium: up to 50 apps, plus Strict mode (stays blocked when you pause) and Locked mode (after the first minute the session can't be skipped or ended, 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 public rooms, or private ones with an 8-character code • See who's focusing, on a break, or paused, with live countdowns • No camera or microphone, just quiet company • Premium: create your own public or private rooms (2 to 50 people), manage them as host, 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 • 60+ 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
Noiseless
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Noiseless is a distraction blocker and focus timer built for people who mean it. Free to download and try — one optional one-time purchase unlocks everything. Never a subscription. When you start a session, Noiseless activates Mute Mode — blocking access to the apps that steal your attention. No willpower required. The apps are locked until your session ends. Then it shows you what you got back: the attention you reclaimed, and the finite time you're spending it against. HOW IT WORKS • Tap Mute to start a focus session • Mute Mode activates instantly, blocking distracting apps • A hold-to-unmute gesture prevents impulsive endings • Your session runs with a live timer on your Lock Screen and Dynamic Island SEE THE FOCUS YOU RECLAIM — SIGNAL • Your reclaimed attention as Today, this Week, and the whole Year • Set an optional intention — Work, Read, Create, or Rest — and see how your focus splits • Session targets: aim for 25, 50, or 90 minutes and watch a gentle ring fill • A calm weekly mirror that reflects on your week without ever grading it SEE THE TIME YOU'RE SPENDING — TIME • Your life in weeks — a quiet grid of every week of a life, bright for the ones behind you • What's left, right now — how much of today, this week, this month, and this year remains • Goals — count the days since you quit something, or down to a deadline • Link a goal to your focus time to make progress real ("47h of 100h") START FROM ANYWHERE • "Hey Siri, Mute" and Shortcuts actions • Home Screen widgets — a live session timer and a countdown to any goal • Control Center toggle for one-flick Mute / Unmute FEATURES • Full app blocking via Apple Screen Time integration • Live Activities on Lock Screen and Dynamic Island • Apple Watch app with real-time session sync and live complications • Watch complications for sessions, a life clock, and goals • Activity grid and calendar view of your focus history • Quiet Hours — a soft, optional nudge to mute at the times you choose • Share a clean card of a goal or your life in weeks • Optional iCloud Sync — keep your goals and history across your devices, privately (off by default) • Data export and import (JSON) • Dark and light mode with a minimal, monospaced design BUILT FOR PRIVACY No accounts. No analytics. No tracking. No ads. Noiseless works entirely offline by default, and your data stays yours. Turn on iCloud Sync (off by default) and your goals and focus history sync privately across your own devices through your iCloud — we never see it. FREE TO TRY. PAY ONCE. Your first week is fully unlimited. After that, the free tier keeps the complete ritual — one honest 25-minute session a day, one goal, and today's Signal. A single one-time purchase unlocks everything else: unlimited sessions, the full Signal and Reflection views, iCloud sync, and muting all your devices at once. No subscriptions. No ads. No upsells. Noiseless uses Apple's Screen Time framework to block apps during focus sessions. You choose which apps to block, and the block is automatically removed when your session ends.
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Verdict
The clearest difference is in-app purchases: Noiseless at none against Kaizen's 2. Noiseless also leads on update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement 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. Noiseless asks for nothing beyond the download.
Kaizen ships an update every 2 weeks, Noiseless every 5 days. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.
| Parameter | Kaizen | Noiseless |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 68 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | MK Development | Raphael araujo |
In-app purchases
Kaizen
- Premium (monthly)14 Days trial$3.991 Month
- Premium (yearly)14 Days trial$44.991 Year
Noiseless
No in-app purchases









