# コストコ通＋ vs 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ

The clearest difference is update cadence: コストコ通＋ at monthly against 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ's every 42 months. コストコ通＋ also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

コストコ通＋ ships an update monthly, 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ every 42 months. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | コストコ通＋ | 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 12.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 42 months |
| Size | 21 MB | 96 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Keiichi Hayashida](https://appshunter.io/developer/723411895) | [Ayaka Morita](https://appshunter.io/developer/987897829) |

## What reviewers say

### コストコ通＋

[App page](https://appshunter.io/ios/app/id723411892)

**Features:** macOS Compatibility

**In-app purchases:** none


### 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ

[App page](https://appshunter.io/ios/app/e-tax/id1207137645)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is コストコ通＋ free?

コストコ通＋ is free to download, with no in-app purchases.

### Is 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ free?

確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ is free to download, with no in-app purchases.

### Do コストコ通＋ or 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ have ads?

Both コストコ通＋ and 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ show ads.

### Which is updated more often, コストコ通＋ or 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ?

コストコ通＋ ships an update monthly, and 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ every 42 months. Most recently, コストコ通＋ was updated on October 16, 2026 and 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ on October 5, 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.*