Kaizen vs ID
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
ID
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IDShield keeps your identity documents secure and gives you full control over how they're shared. Snap a photo of your passport, ID card, or driving license, then add a visible watermark before sending it to anyone - so your documents can never be misused. Hand over a copy of your passport or ID, and you lose control. Where does it end up? Who else sees it? Can you prove a leak came from a specific recipient? ID-Shield gives that control back. Watermark, redact, and trace every copy of your identity documents — all on-device, with no cloud, no account, no tracking. WATERMARK EVERY COPY Stamp each shared file with a purpose ("Apartment Application — Berlin"), the recipient's name, and the date. Choose a subtle single-line stamp or a full-splash overlay, in any color. If a copy ever surfaces somewhere it shouldn't, the watermark tells you exactly which copy leaked. REDACT IN SECONDS Black out social security numbers, birth dates, addresses, signatures — anything you don't want shared. Drag your own redaction boxes, or let Smart Redact suggest sensitive fields automatically. Tap once to blur faces. Pinch to zoom for pixel-perfect work. SCAN OR IMPORT Capture documents straight from your camera, or import from Photos and Files. Multi-page scans supported. Everything is locked behind Face ID, Touch ID, or your device passcode. SHARE THE NATIVE WAY Export as PDF or image, then send through the standard iOS / iPadOS / macOS share sheet — Mail, Messages, AirDrop, WhatsApp, any app you already use. No proprietary cloud, no lock-in. AUDIT TRAIL Every share is logged: what was sent, to whom, for what purpose, when. Look back any time. If something goes wrong, you have a record. PRIVACY BY DESIGN 100% on-device processing — nothing leaves your phone unless you send it Zero analytics, zero tracking, zero third-party SDKs No account required Optional iCloud sync uses Apple's end-to-end encrypted CloudKit NATIVE ON EVERY APPLE DEVICE Built fresh in SwiftUI for iPhone, iPad, and Mac. Each platform gets a layout that feels native — not a port. Vision-powered text detection, Face ID unlock, system share sheet. WHO USES ID-SHIELD Renters and apartment hunters submitting ID copies Job applicants sharing documents with HR or recruiters Anyone verifying identity online or by mail Privacy-conscious professionals Parents managing family documents Your most sensitive documents deserve more than an unprotected PDF. Every copy watermarked. Every share recorded. Every byte stays where you put it — on your device. Download ID-Shield and take back control of your identity documents. PRIVACY FIRST All data stored on your device by default No accounts, no servers, no tracking iCloud sync is optional and controlled by you
Screenshots
Verdict
The clearest difference is iOS requirement: Kaizen at 15.6 against ID's 17.0. On price, update cadence, 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 7 in-app purchases, starting at $3.99 per month and ID sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.
| Parameter | Kaizen | ID |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 132 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Lennard Zieten | Kanchalika Kongyong |
In-app purchases
Kaizen
- Kaizen Pro - Monthly$3.991 Month
- Kaizen Unlimited14 Days trial$9.991 Month
- Kaizen AI14 Days trial$14.991 Month
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- Kaizen Pro - Annual$39.991 Year
- Kaizen Unlimited14 Days trial$47.901 Year
- Kaizen AI14 Days trial$69.901 Year
- Kaizen Pro - Lifetime$179.00
ID
- ID-Shield$9.99









