Comparison

Kaizen vs TaskBase

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 combines a Kanban board, calendar, and AI assistant to help you organize your tasks and improve continuously. It offers voice commands and customizable aesthetics to create a focused and functional workspace.

Highlights
  • Kanban board for project management
  • Integrated calendar view
  • AI assistant with voice commands
  • Drafts calendar events and creates tasks
  • Material 3 theming and custom backgrounds
Features
Read full description

End your day feeling done — not buried. 88% of people go to bed feeling unaccomplished. Not because they didn't work hard, but because their tools fight them: a to-do list in one app, a calendar in another, a Kanban board in a third, and an AI chat in a fourth. Nothing talks to anything. Kaizen brings it all into one app that you actually want to open. → TIME-BLOCK YOUR DAY, NOT JUST LIST IT Drag tasks straight onto your calendar. See your real day — to-dos AND time blocks — side by side on a split screen (iPad/large screens). No more "I have 17 to-dos and 6 hours, what now?" — Kaizen shows you when, not just what. → AI THAT ACTUALLY KNOWS YOU You can use Kaizen's build in AI assistant or work with frontier models through MCP. Set persistent instructions ("Be blunt", "Push me on my side project", "Cut me slack on Fridays") and the AI shapes itself around you instead of you adapting to it. Brain-dump out loud, get a structured plan back. → KANBAN WHEN A LIST ISN'T ENOUGH Every project gets a board view. Drag tasks through Backlog → Doing → Done. Perfect for side projects, course work, and creative work where a flat list doesn't fit. → LIFE TIERLIST: SEE WHAT ACTUALLY MATTERS Hidden behind a long-press on the calendar icon: rank the areas of your life — Career, Health, Family, Learning, Side Project, ... — into a visual hierarchy. When you don't know what to work on, your tierlist answers for you. No other planner does this. → MAKE IT YOURS — REALLY YOURS Backgrounds per page. Custom fonts, sizes, icons. Opacity and blur per element. Custom colors. Windowed mode on larger devices. Most planners give you "dark mode and three theme colors." Kaizen gives you a workspace that feels like it was built for your brain. WHO IT'S FOR • Employees juggling work, life and a side project • Founders and freelancers who can't afford a messy day • Students whose calendar and homework live in different worlds • Anyone who's tried five planners and bounced off all of them WHAT YOU GET WITH UNLIMITED - Unlimited tasks, folders, and task lists - Calendar with day, week, month views - Drag-and-drop time blocking - Kanban board per project - Habit-style recurring tasks and reminders - iOS, Android, and Web — synced - Life Tierlist - Deep customization (backgrounds, opacity, blur, custom fonts) - Import/export your data anytime AI UNLOCKS - Kaizen AI with persistent instructions + MCP for Claude/ChatGPT - Speech task creation WHY "KAIZEN" Kaizen (改善) is the Japanese practice of getting 1% better, every day. Not a productivity hack. A way of building a life that compounds. START TODAY Spend 60 seconds importing your existing tasks. Block tomorrow morning. Notice the difference by Friday. Have an idea? Tap "Suggest a feature" in settings — we read every one.

About

TaskBase

Features
Read full description

TaskBase is your smart task assistant for everyday life. Forget complicated to-do apps. With TaskBase, you can create tasks in seconds and keep everything organized – without chaos or unnecessary features. Smart task assistant TaskBase helps you quickly capture and organize your tasks so you can focus on what really matters. Import tasks directly from WhatsApp, email & browser You get tasks from everywhere? No problem. Share content directly from apps like WhatsApp or your browser with TaskBase and instantly turn it into a task – no typing needed. Focus instead of chaos Stay focused on what’s important instead of getting lost in long task lists. Clear overview & structure Keep track of your tasks, priorities, and progress at all times. Fast & simple Create a task, save it, done. No complicated menus – just get started. Perfect for: - Daily life & personal tasks - Work & projects - Quick notes & to-dos TaskBase helps you plan less and get more done. Try it now and boost your productivity.

Screenshots

Kaizen4 screens
TaskBase4 screens

Verdict

The call

The clearest difference is in-app purchases: TaskBase at none against Kaizen's 7. Kaizen's advantage is iOS requirement (15.6 vs 26.2). On price, update cadence, ads and device support 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 7 in-app purchases, starting at $3.99 per month. TaskBase asks for nothing beyond the download.

UpkeepUpdate frequency

Kaizen ships an update every 2 weeks, TaskBase weekly. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 8 level
Kaizen versus TaskBase: the parameters behind the verdict, then further details
ParameterKaizenTaskBase
PriceFreeFree
Rating1.5 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.2
Further details — not scored
Size132 MB1 MB
Age rating4+4+
DeveloperLennard ZietenMarcial Reichert

In-app purchases

7 purchases

Kaizen

Subscriptions6
  • Kaizen Pro - Monthly$3.991 Month
  • Kaizen Unlimited14 Days trial$9.991 Month
  • Kaizen AI14 Days trial$14.991 Month
Show 3 more
  • Kaizen Pro - Annual$39.991 Year
  • Kaizen Unlimited14 Days trial$47.901 Year
  • Kaizen AI14 Days trial$69.901 Year
One-time1
  • Kaizen Pro - Lifetime$179.00
None

TaskBase

No in-app purchases

Questions

Is Kaizen free?
Kaizen is free to download, with in-app purchases available.
Is TaskBase free?
TaskBase is free to download, with no in-app purchases.
Do Kaizen or TaskBase have ads?
Neither Kaizen nor TaskBase shows ads.
Which is updated more often, Kaizen or TaskBase?
Kaizen ships an update every 2 weeks, and TaskBase weekly. Most recently, Kaizen was updated on October 8, 2026 and TaskBase on September 30, 2026.

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