# Tatekan — 旅行立て替え精算割り勘ツール

> Group expense tracker with chat-style input for easy settlement calculations. (iPhone/iPad app by Takumi Kato.)

- Source: https://appshunter.io/ios/app/tatekan/id1500115091 (this page in markdown: same URL + `.md`)
- Developer: [Takumi Kato](https://appshunter.io/developer/1395306671)
- Category: Travel, Finance
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 57 MB
- Languages: Hindi, Japanese, Spanish
- Released: 2020-02-25
- Data updated: 2026-06-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tatekan/id1500115091/reviews.md

## What is Tatekan?

Traveling with friends, sharing expenses with your partner, or enjoying regular outings with your close-knit group—keeping track of who paid what can be a real headache.

Tatekan is here to change that. With a chat-like interface reminiscent of popular messaging apps, simply enter your spending details, and our app instantly calculates “who owes whom” for all your group expenses. Even when multiple payments are involved, Tatekan streamlines the process into a clear, easy-to-understand summary.

Why You'll Love Tatekan:
Intuitive, Chat-Style Input
Enter payment details as easily as sending a message. Forget about tedious calculations—the app does it all for you!

Automatic Settlement Calculation
Tatekan quickly aggregates everyone’s spending and identifies who has overpaid and who has underpaid, so you always know exactly how much to settle up.

Long-Term Expense Management
Whether it's a one-time trip or ongoing shared expenses, track your payments over time and view a complete history to keep everything fair and transparent.

Secure and Trustworthy
With a detailed log of all changes, you never have to worry about accidental edits or unauthorized modifications. Your data is always safe and accurate.

Effortless Group Sharing
Easily invite friends via URL or QR code. Perfect for travel or spontaneous outings—get everyone on board with just a tap.

## Key features

- Chat-style expense input
- Automatic settlement calculation
- Long-term expense tracking
- Secure data logging
- Effortless group sharing via URL/QR code

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/tatekan/id1500115091/reviews.md

### 4/5 — お願い

*2023-11-07, version 0.1.3*

とても良いです！が、ひとつとても惜しいです。

ひとつアップグレードのお願いです。

友達のお土産を立て替えしてあげたり、自分が払ったけど自分の支払いでないものもあります。

旅が終わったあと結局自分がいくら使ったのか振り返りたいので、精算画面で返済額だけでなく、自分がいくら使ったかわかると非常にたすかります！

### 4/5 — 感謝と改善要望

*2023-09-02, version 0.1.3*

求めていたアプリでとても活用させていただいています！ありがとうございます☺️

可能であれば、機種変更した際にも履歴を引き継げるように修正いただきたいです。（サインインはGoogleでしてました）

### 4/5 — 外貨対応はできない？

*2023-06-11, version 0.1.3*

これから使おうと思いインストールしてみましたが、円だけなのかしら？

### 5/5 — 感謝

*2021-09-15, version 0.1.2*

こういうアプリ欲しいなあと考え、いくつかアプリを試したのちにこのアプリに辿り着きました。求めてたものが全部備わっていてとても感動しました。支払った人が各々入力することで未入力も各々の責任となり、精算完了したかも入力でき確認できること、なによりもそのアプリを友人達と共有できることで、確認したいタイミングで各々が自分のスマホで確認できること、とても優れたアプリだと思います！！まわりにこの感動を伝えまくっています、素敵なアプリをありがとうございます😊！！
デザインも気に入ってます。
これからも素敵なアプリの開発楽しみにしています。
誰かが入力した際に通知が来る設定もできたら嬉しいなあ...と使ってみて欲が出ました☺️

## Frequently asked questions about Tatekan

### How does Tatekan calculate who owes whom?

Tatekan uses a chat-like interface to input spending details. It then automatically aggregates everyone's spending and identifies who has overpaid and underpaid, providing a clear summary of amounts to settle.

### Can Tatekan be used for long-term shared expenses, not just trips?

Yes, Tatekan is designed for both one-time trips and ongoing shared expenses. You can track payments over time and view a complete history for transparency.

### Is Tatekan secure for managing financial data?

Tatekan is secure and trustworthy, featuring a detailed log of all changes to prevent accidental edits or unauthorized modifications. Your data is kept safe and accurate.

### How do I invite friends to a group in Tatekan?

You can easily invite friends to a group via a URL or QR code. This makes it simple to get everyone on board for travel or spontaneous outings.

### What devices does Tatekan support?

Tatekan is available on iPhone, iPad, and iPod, making it accessible for users within the Apple ecosystem.

### How often is Tatekan updated?

The latest version of Tatekan is 0.1.5, last updated on February 10, 2025. Updates ensure the app remains reliable and features are improved.

### What is the age rating for Tatekan?

Tatekan has an age rating of 4+, indicating it is suitable for a wide range of users, including children.

### Does Tatekan have advertisements?

No, Tatekan does not contain advertisements. It is a free app without any ad interruptions.

## Version history (last 5 releases)

### 0.1.5 — 2025-02-10

リアクション機能の追加

### 0.1.3 — 2021-12-11

・Apple loginの追加
・通知の追加
・デザインの微修正

### 0.1.2 — 2020-03-04

Tatekanから退室機能追加

### 0.1.1 — 2020-03-03

削除機能の作成

### 0.0.4 — 2020-02-28

バグ修正

## More apps by Takumi Kato

- [LOTHRO](https://appshunter.io/ios/app/lothro/id1547601383)

All apps by Takumi Kato: https://appshunter.io/developer/1395306671

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*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 2026-06-26.*