# StackCards vs IIKANZI KIKAI 1

The clearest difference is update cadence: IIKANZI KIKAI 1 at every 4 days against StackCards's monthly. IIKANZI KIKAI 1 also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. StackCards sells 1 one-off in-app purchase and IIKANZI KIKAI 1 sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

StackCards ships an update monthly, IIKANZI KIKAI 1 every 4 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | StackCards | IIKANZI KIKAI 1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 5 MB | 67 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Luis Leonardo Salas Delgadillo](https://appshunter.io/developer/6789007477) | [HUONG BUI THI MINH](https://appshunter.io/developer/1896182696) |

## What reviewers say

### StackCards

[App page](https://appshunter.io/ios/app/stackcards-flashcards/id6789007475)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StackCards Premium | $4.99 | one-time |


### IIKANZI KIKAI 1

[App page](https://appshunter.io/ios/app/iikanzi-kikai-1/id6806912819)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3か月プラン | $22.99 | one-time |
| 動画つきへアップグレード | $24.99 | one-time |
| 動画つき6か月プラン | $49.99 | one-time |


## Frequently asked questions

### Is StackCards free?

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

### Is IIKANZI KIKAI 1 free?

IIKANZI KIKAI 1 is free to download, with in-app purchases available.

### Do StackCards or IIKANZI KIKAI 1 have ads?

Neither StackCards nor IIKANZI KIKAI 1 shows ads.

### Which is updated more often, StackCards or IIKANZI KIKAI 1?

StackCards ships an update monthly, and IIKANZI KIKAI 1 every 4 days. Most recently, StackCards was updated on October 25, 2026 and IIKANZI KIKAI 1 on October 29, 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.*