# Memorize vs Kaizen

The clearest difference is device support: Memorize at 4 against Kaizen's 2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Memorize sells 1 in-app purchase, starting at $0.99 per month and Kaizen sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Memorize ships an update fortnightly, Kaizen every 2 weeks. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Memorize | Kaizen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memorize-memory-builder/id1589566038/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 68 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Raheel Ahmad](https://appshunter.io/developer/389008052) | [MK Development](https://appshunter.io/developer/1853083060) |

## What reviewers say

### Memorize

[App page](https://appshunter.io/ios/app/memorize-memory-builder/id1589566038)

This app helps you memorize information using a spaced-repetition system. Easily add and sync your study materials across devices, track progress with detailed statistics, and review difficult items separately. It's designed for learning anything you need to remember.

**Highlights:** Spaced-repetition system, Quick card adding, iCloud sync across devices, Share extension for content import, Markdown support for formatting, Detailed progress statistics, Review difficult cards separately

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Unlock | $0.99 | per month |


### Kaizen

[App page](https://appshunter.io/ios/app/kaizen-focus-and-study-timer/id6755314708)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (monthly) | $3.99 | per month |
| Premium (yearly) | $44.99 | per year |


## Frequently asked questions

### Is Memorize free?

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

### Is Kaizen free?

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

### Do Memorize or Kaizen have ads?

Neither Memorize nor Kaizen shows ads.

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

Memorize ships an update fortnightly, and Kaizen every 2 weeks. Most recently, Memorize was updated on October 6, 2026 and Kaizen on October 1, 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.*