# auの「iDeCo/イデコ」個人型確定拠出年金アプリ vs ふるさと納税帳

The clearest difference is review sentiment: ふるさと納税帳 at 100% against auの「iDeCo/イデコ」個人型確定拠出年金アプリ's 12%. ふるさと納税帳 also leads on update cadence (every 3 days vs every 3 months). auの「iDeCo/イデコ」個人型確定拠出年金アプリ's advantage is monetization model (ad-supported vs free with in-app purchases) and iOS requirement (12.0 vs 17.0). 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.

auの「iDeCo/イデコ」個人型確定拠出年金アプリ ships an update every 3 months, ふるさと納税帳 every 3 days. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | auの「iDeCo/イデコ」個人型確定拠出年金アプリ | ふるさと納税帳 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 11.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 48 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [au Asset Management Corporation](https://appshunter.io/developer/1435024417) | [KUREHO](https://appshunter.io/developer/1884942706) |

## What reviewers say

### auの「iDeCo/イデコ」個人型確定拠出年金アプリ

[App page](https://appshunter.io/ios/app/auideco/id1435024418)

This app serves as a gateway to a dedicated website for managing your iDeCo (individual defined contribution pension plan) account. It provides announcements and directs users to the platform for all operational services, including checking investment status and completing procedures.

**Highlights:** Access to iDeCo services website, Announcements for iDeCo members, Guidance to dedicated website, Secure personal information management, Information on saving for the future, Interest in asset management

**Features:** macOS Compatibility

**In-app purchases:** none


### ふるさと納税帳

[App page](https://appshunter.io/ios/app/ideco/id6764628383)

This app accurately simulates your Furusato Nouzei donation limit, accounting for side income and iDeCo. It manages your donations, tracks application status, and verifies results with your resident tax notice. Designed for privacy, all data stays on your device.

**Highlights:** Accurate donation limit calculation, Side income and iDeCo integration, Donation tracking and management, One-stop special application management, Year-end review and advice, Resident tax notice verification

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

**In-app purchases:** none


## Frequently asked questions

### Is auの「iDeCo/イデコ」個人型確定拠出年金アプリ free?

auの「iDeCo/イデコ」個人型確定拠出年金アプリ is free to download, with no in-app purchases.

### Is ふるさと納税帳 free?

ふるさと納税帳 is free to download, with no in-app purchases.

### Do auの「iDeCo/イデコ」個人型確定拠出年金アプリ or ふるさと納税帳 have ads?

Both auの「iDeCo/イデコ」個人型確定拠出年金アプリ and ふるさと納税帳 show ads.

### Which is updated more often, auの「iDeCo/イデコ」個人型確定拠出年金アプリ or ふるさと納税帳?

auの「iDeCo/イデコ」個人型確定拠出年金アプリ ships an update every 3 months, and ふるさと納税帳 every 3 days. Most recently, auの「iDeCo/イデコ」個人型確定拠出年金アプリ was updated on October 23, 2026 and ふるさと納税帳 on October 10, 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.*