# Sumasap Key App

> Smart key management system for real estate agencies, enabling remote access and tracking. (iPhone/iPad app by 株式会社 スマサポ.)

- Source: https://appshunter.io/ios/app/sumasap-key-app/id1241187689 (this page in markdown: same URL + `.md`)
- Developer: [株式会社 スマサポ](https://appshunter.io/developer/1232097736)
- Category: Navigation, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 22 MB
- Languages: Japanese
- Released: 2017-09-02
- Data updated: 2026-09-07
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/sumasap-key-app/id1241187689/reviews.md

## What is Sumasap Key App?

In estate agencies, they make customers wait because of key troubles…
It's troublesome to inquiry preview applications…
It's troublesome to go to property management company each transferring keys…
Enployer couldn't find where keys were.
information for totally new preview!
Five features about Sumasapo Key Box
１．Sumasapo Key Box can be mounted on virtually any doors and keys.
２．Not necessary for installation work.
３．Not necessary for transferring keys(preview applications on app)
４．Check history function (whem, who, which room)
５．Auto-locks can be opened on app.

【Sales】
Sumasapo
【Supplier】
IHI

## Key features

- Mounts on doors and keys
- No installation required
- No physical key transfers
- Key usage history tracking
- Remote auto-lock access via app

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/sumasap-key-app/id1241187689/reviews.md

### 1/5 — ゴミアプリ

*2025-11-28, version 2.4.1*

Bluetoothの反応がゴミ過ぎてほぼ使えない。
実地試験とかスマホの機種によるテストなども一切やってないで作られたアプリと思って良い。

### 1/5 — 終わってる

*2025-08-16, version 2.3.8*

起動しない、手間でしかない

### 1/5 — 遅すぎる

*2025-07-04, version 2.3.8*

接続が遅すぎる。意味ない

### 1/5 — 微妙

*2025-05-25, version 2.3.8*

フリーズがすごい！開錠にめちゃくちゃ時間かかり、お客様お待たせしてしまいました。わざわざアプリをダウンロードさせる仕組みなので、電波状況次第では、案内できません。このシステム入れてる管理会社の物件はご紹介控えます。

### 1/5 — 最悪のアプリ

*2024-08-29, version 2.3.8*

このアプリーを採用する管理会社がよくわからない。キーボックスで普通にお願いします。

### 1/5 — 使えません

*2023-12-02, version 2.3.4*

まずマンションの電波がキャリアにより悪い物件等では案内すら出来ません

### 1/5 — 契約逃しました

*2023-10-17, version 2.3.4*

スマサポキーアプリで鍵の管理をしている物件をご紹介したかったのに、、
申請から内覧まで、全て反応なし。
Bluetoothもonにしているのに。
契約逃しました。弁償してください。

### 3/5 — アプリから突然出ちゃう

*2022-12-16, version 2.2.8*

最新のiPhone14プロで内覧ボタンを押すと、突然出ちゃいます。

### 1/5 — 仲介

*2022-01-18, version 2.2.6*

まず、エントランスでオートロック解錠のためにBluetoothオンにしたが接続に失敗しましたと何度もエラーが表示される。19時に予約してるのだが、営業時間外のため電話は繋がらない。何も解決できずにお客さんを帰らせる羽目に。最悪のアプリです。時間と利益を返してください。

### 1/5 — 使いづらい

*2019-08-24, version 2.1.9*

実際に使ってみたが、かなり使いづらかった。

## Frequently asked questions about Sumasap Key App

### What is Sumasap Key App used for?

Sumasap Key App is designed to streamline key management for real estate agencies. It allows for remote access to properties, tracks key usage history, and eliminates the need for physical key transfers.

### Can Sumasap Key App be installed on any door?

Yes, Sumasap Key Box can be mounted on virtually any doors and keys, offering flexibility for different property types.

### Does Sumasap Key App require installation work?

No, Sumasap Key App does not require any installation work for its key box component, making it easy to deploy.

### How does Sumasap Key App help with property viewings?

It eliminates the need for physical key transfers for preview applications, allowing potential buyers or renters to access properties through the app.

### What information is available in the check history function?

The check history function records when, who, and which room keys were accessed, providing a comprehensive log of usage.

### Does Sumasap Key App have ads?

Yes, Sumasap Key App contains advertisements. As a free application, it utilizes ads to support its services.

### What devices is Sumasap Key App compatible with?

Sumasap Key App is available for iPhone, iPad, and iPod devices, offering broad compatibility within the Apple ecosystem.

### How often is Sumasap Key App updated?

The latest version of Sumasap Key App is 2.4.3, and it was last updated on February 17, 2026. This indicates a recent update, suggesting ongoing development and support.

## Version history (last 5 releases)

### 2.4.3 — 2026-02-17

fix bug

### 2.4.2 — 2026-01-19

fix bug

### 2.4.1 — 2025-11-13

fix bug

### 2.4.0 — 2025-10-23

fix bug

### 2.3.9 — 2025-10-15

fix bug

## Apps similar to Sumasap Key App

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Cashless payment PARKING PAY](https://appshunter.io/ios/app/cashless-payment-parking-pay/id1091141986) | — | Free | Navigation |
| [ダイワハウスの賃貸住宅　D-ROOMのお部屋探しサイト](https://appshunter.io/ios/app/d-room/id1173811991) | — | Free | Navigation |
| [LocaSma](https://appshunter.io/ios/app/locasma/id498923187) | 5.0 (3) | Free | Navigation |
| [タイムズカー](https://appshunter.io/ios/app/id825371148) | — | Free | Navigation |

## More apps by 株式会社 スマサポ

- [totono](https://appshunter.io/ios/app/totono/id1515211377)

All apps by 株式会社 スマサポ: https://appshunter.io/developer/1232097736

## Related topics

[sumasap key app](https://appshunter.io/ios/topics/sumasap-key-app) · [opendoor key app](https://appshunter.io/ios/topics/opendoor-key-app)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*