# かたぎり塾アプリ vs Kalbox

かたぎり塾アプリ and Kalbox are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

かたぎり塾アプリ ships an update every 3 weeks, Kalbox every 2 weeks. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | かたぎり塾アプリ | Kalbox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 59 MB | 5 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [かたぎり塾](https://appshunter.io/developer/1657660579) | [KALBI LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1551784600) |

## What reviewers say

### かたぎり塾アプリ

[App page](https://appshunter.io/ios/app/id6444889803)

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

**In-app purchases:** none


### Kalbox

[App page](https://appshunter.io/ios/app/kalbox/id6767986664)

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

**In-app purchases:** none


## Frequently asked questions

### Is かたぎり塾アプリ free?

かたぎり塾アプリ is free to download, with no in-app purchases.

### Is Kalbox free?

Kalbox is free to download, with no in-app purchases.

### Do かたぎり塾アプリ or Kalbox have ads?

Neither かたぎり塾アプリ nor Kalbox shows ads.

### Which is updated more often, かたぎり塾アプリ or Kalbox?

かたぎり塾アプリ ships an update every 3 weeks, and Kalbox every 2 weeks. Most recently, かたぎり塾アプリ was updated on October 11, 2026 and Kalbox on October 4, 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.*