# Kaizen - Tasks & Calendar — AI Planner, Tasks & Time Block

> Productivity app integrating Kanban, calendar, and AI for continuous improvement. (iPhone/iPad app by Lennard Zieten.)

- Source: https://appshunter.io/ios/app/kaizen-tasks-and-calendar/id6746545640 (this page in markdown: same URL + `.md`)
- Developer: [Lennard Zieten](https://appshunter.io/developer/1817374089)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 1.50/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 168 MB
- Languages: American English
- Released: 2025-06-19
- Data updated: 2026-09-06
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/kaizen-tasks-and-calendar/id6746545640/reviews.md

## What is Kaizen?

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.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Kaizen AI | $14.99 | per month |
| Kaizen AI | $69.90 | per year |
| Kaizen Pro - Monthly | $3.99 | per month |
| Kaizen Pro - Annual | $39.99 | per year |
| Kaizen Unlimited | $9.99 | per month |
| Kaizen Unlimited | $47.90 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kaizen Pro - Lifetime | $179.00 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/kaizen-tasks-and-calendar/id6746545640/reviews.md

### 1/5 — Wanted to Give it a Shot, But..

*2026-05-28*

As a business owner and someone who always loves to try new organizational methods and different Japanese techniques, I really wanted to give this app a try. 

The problem is, even before setup, I ran into various bugs and hit one that completely breaks the app. Of course, a subscription is required (which I am not fond of), but I wanted to try my 14-day free trial. Upon trying to move forward with the trial, you immediately get an error code, and it is continuous over and over. It does not let you progress; therefore, you cannot even use the app. 

I highly recommend trying to fix the bugs in the app before trying to charge people money.

### 2/5 — Not ready

*2026-03-19*

I’m always baffled by these new apps that feel justified in charging people before they’re even ready too. You have a ton of work to do with glitches. I normally do not write reviews but the fact that so many feel the need to overcharge or even charge at all is ridiculous.

## Frequently asked questions about Kaizen

### What is Kaizen?

Kaizen is a productivity app that combines a Kanban board, a calendar, and an AI assistant to help users organize their tasks and achieve continuous improvement. It aims to unify digital life into a single, functional ecosystem.

### How does Kaizen's AI assistant work?

Kaizen's AI assistant allows users to dictate notes, ask for summaries, and issue commands via voice. It can also draft calendar events, create tasks from dictation, and organize folders automatically.

### What are the subscription options for Kaizen?

Kaizen offers several subscription plans including Kaizen Pro (monthly/annual), Kaizen Unlimited (monthly/annual with a 14-day free trial), and Kaizen AI (monthly with a 14-day free trial). Pricing ranges from $3.99/month to $14.99/month or $39.99/year to $47.90/year.

### Does Kaizen have ads?

Yes, Kaizen contains advertisements. This is indicated by the 'hasAds' flag being true in the application data.

### What devices is Kaizen available on?

Kaizen is available on iPhone, iPad, and iPod devices. It is designed to be compatible with Apple's iOS ecosystem.

### What is the age rating for Kaizen?

Kaizen has an age rating of 4+. This indicates it is suitable for children aged 4 and above.

### How often is Kaizen updated?

The latest version of Kaizen is 7.2.0, and it was last updated on May 19, 2026. This suggests a relatively frequent update cycle.

### What is the user sentiment for Kaizen?

Based on the provided rating of '2.0 stars from 1 ratings', user sentiment appears to be low. Further user reviews would be needed for a comprehensive understanding.

## Version history (last 5 releases)

### 8.5.0 — 2026-08-31

What's new in 8.5.0:

→ Massive UI & UX overhaul for a smoother, cleaner experience
→ New and improved animations throughout the app
→ Enhanced web app experience
→ Fixed Task & Calendar Widgets
→ A fresh round of bug fixes and performance tweaks

Thanks for using Kaizen.

### 8.0.0 — 2026-06-16

What's new in 8.0.0:

→ Massive UI & UX overhaul for a smoother, cleaner experience
→ New and improved animations throughout the app
→ Custom date formats (thank you for the suggestion!)
→ A fresh round of bug fixes and performance tweaks

Thanks for using Kaizen.

### 7.3.0 — 2026-05-29

Kaizen just got a major performance and visual upgrade. In this release, we crushed a critical bug to heavily boost app stability, refreshed the user interface for a cleaner design and upgraded our MCP server functionality to make your custom AI connections faster and more reliable.

### 7.2.0 — 2026-05-19

We have optimized the UI and UX, especially for web and bigger devices and it features a futuristic new windowed mode and an improved MCP connection. This update also introduces breathtaking new background images, a smoother onboarding experience, and various bug fixes.

### 7.1.0 — 2026-05-12

This latest Kaizen update introduces significant improvements to the MCP connector for more reliable data integration. We have also overhauled the app’s UI, adding new functionality and a more intuitive design to enhance your workflow. Alongside these features, we’ve resolved bugs to ensure a smoother, more stable experience across the entire platform.

## Apps similar to Kaizen

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Mono Task - Focus Day Planner](https://appshunter.io/ios/app/mono-task-focus-day-planner/id6474521448) | 4.7 (20) | Free | Productivity |
| [Daily Schedule Planner - MyDay](https://appshunter.io/ios/app/daily-schedule-planner-myday/id1631348027) | 4.6 (762) | Free | Productivity |
| [Elisi: AI Planner & To-Do List](https://appshunter.io/ios/app/elisi-ai-planner-and-to-do-list/id1273463174) | 4.3 (511) | Free | Productivity |
| [Kaizen: ToDo & Productivity](https://appshunter.io/ios/app/kaizen-todo-and-productivity/id6737436181) | 5.0 (2) | Free | Productivity |
| [Life Planner : Organizer](https://appshunter.io/ios/app/life-planner-organizer/id1623878839) | 3.6 (11) | Free | Productivity |
| [Simplr Tasks](https://appshunter.io/ios/app/simplr-tasks/id6748098464) | 5.0 (1) | Free | Productivity |

## Related topics

[kaizen lean qc toolkit](https://appshunter.io/ios/topics/kaizen-lean-qc-toolkit) · [kaizen](https://appshunter.io/ios/topics/kaizen) · [kaizen challenge](https://appshunter.io/ios/topics/kaizen-challenge) · [kaizen personal development](https://appshunter.io/ios/topics/kaizen-personal-development) · [kaizen ai](https://appshunter.io/ios/topics/kaizen-ai)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*