# Kaizen vs ID

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.

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.

## The numbers

| Metric | Kaizen | ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/kaizen-tasks-and-calendar/id6746545640/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 132 MB | 2 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Lennard Zieten](https://appshunter.io/developer/1817374089) | [Kanchalika Kongyong](https://appshunter.io/developer/1883480594) |

## What reviewers say

### Kaizen

[App page](https://appshunter.io/ios/app/kaizen-tasks-and-calendar/id6746545640)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kaizen Pro - Monthly | $3.99 | per month |
| Kaizen Unlimited | $9.99 | per month |
| Kaizen AI | $14.99 | per month |
| Kaizen Pro - Annual | $39.99 | per year |
| Kaizen Unlimited | $47.90 | per year |
| Kaizen AI | $69.90 | per year |
| Kaizen Pro - Lifetime | $179.00 | one-time |


### ID

[App page](https://appshunter.io/ios/app/id-shield-keep-ids-secure/id6760896003)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ID-Shield | $9.99 | one-time |


## Frequently asked questions

### Is Kaizen free?

Kaizen is free to download, with in-app purchases available.

### Is ID free?

ID is free to download, with in-app purchases available.

### Do Kaizen or ID have ads?

Neither Kaizen nor ID shows ads.

### Which is updated more often, Kaizen or ID?

Kaizen ships an update every 2 weeks, and ID every 2 weeks. Most recently, Kaizen was updated on October 8, 2026 and ID on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*