# ProfitMaster — サクッと利益計算　赤字を防いで賢く価格設定！

> Calculate profit, margin, shipping, and fees for online sales instantly. (iPhone/iPad app by Satoshi Takahashi.)

- Source: https://appshunter.io/ios/app/profitmaster/id1363751147 (this page in markdown: same URL + `.md`)
- Developer: [Satoshi Takahashi](https://appshunter.io/developer/1204658453)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 9 MB
- Languages: Japanese
- Released: 2018-04-22
- Data updated: 2026-06-01
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/profitmaster/id1363751147/reviews.md

## What is ProfitMaster?

【フリマ・せどりの必需品】 販売価格・原価・配送料・手数料を入力するだけで、利益と利益率を瞬時に自動計算！ワンタップで数値を調整できるボタン入力、長押しでもサクサク快適。手数料は詳細な小数点入力にも対応しています。シンプル操作で出品前の価格設定を強力にサポートする使いやすさを追求した計算アプリです。

## Key features

- Instant profit and profit margin calculation
- Input for selling price, cost, shipping, and fees
- Easy-to-use button input for adjustments
- Precise fee input with decimal support
- Supports online marketplace sellers

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/profitmaster/id1363751147/reviews.md

### 1/5 — おちる

*2023-11-16, version 1.0.1*

全部数字いれて、利益をみたいのに、その時点でおちる

### 2/5 — 手数料に小数点の数値を入力すると…

*2023-08-06, version 1.0.1*

手数料に5.5%のような小数点の数値を入力すると、手数料が0%と同じ計算になるようです…

### 1/5 — バグを直してほしいです。

*2021-03-01, version 1.0.1*

入力するとアプリが落ちてしまいます。

### 5/5 — ありがたい

*2020-08-04, version 1.0.1*

前まで使ってた原価計算アプリが無くなってしまい困ってました。デザインもかわいくて使いやすいです。有料でもいいのにと思いました。ありがとうございます。

### 4/5 — 使いやすい

*2020-01-17, version 1.0.1*

便利な機能でデザインも見やすいです。
送料の計算機能も追加して頂ければと思います。

### 4/5 — シンプルで良い

*2019-02-17, version 1.0.1*

ちょっと計算したい時にこういうシンプルなアプリがあるととても良いです。
1番上の販売価格を未記入のまま他から入力するとアプリが落ちるバグがあります。改善して頂けたらとても嬉しいです。

## Frequently asked questions about ProfitMaster

### What is ProfitMaster used for?

ProfitMaster is a utility app designed to help online sellers and resellers quickly calculate their profit, profit margin, shipping costs, and transaction fees. It simplifies the process of setting optimal prices for listings.

### Does ProfitMaster have ads?

Yes, ProfitMaster contains advertisements. As a free utility app, ads are displayed to support its continued development and availability.

### What devices is ProfitMaster compatible with?

ProfitMaster is available for iPhone and iPad devices. It is designed to run on Apple's mobile operating system.

### How often is ProfitMaster updated?

The latest version of ProfitMaster is 2.3, and it was last updated on January 28, 2026. This indicates a relatively recent update, suggesting ongoing maintenance and potential feature additions.

### What is the age rating for ProfitMaster?

ProfitMaster has an age rating of 4+. This means it is suitable for users of all ages, with no content restrictions.

### Can ProfitMaster handle complex fee calculations?

Yes, ProfitMaster supports detailed decimal input for fees, allowing for precise calculations even with complex fee structures common in online marketplaces.

### Is ProfitMaster suitable for beginners in online selling?

ProfitMaster is designed with simple operation in mind, making it easy for beginners to use. Its intuitive interface helps users quickly set prices and understand their potential profit.

## Version history (last 5 releases)

### 2.3 — 2026-01-28

・計算タイミングの軽微な修正を行いました

### 2.2 — 2026-01-22

・配送料を計算できるようにしました
・+-ボタン長押しで数字が増減します
・バグの修正

### 2.1 — 2026-01-21

・配送料を計算できるようにしました
・+-ボタン長押しで数字が増減します
・バグの修正

### 2.0 — 2026-01-20

・配送料を計算できるようにしました
・+-ボタン長押しで数字が増減します

### 1.0.1 — 2018-04-22

This app has been updated by Apple to display the Apple Watch app icon.

## More apps by Satoshi Takahashi

- [Haneda New Route Search](https://appshunter.io/ios/app/haneda-new-route-search/id1240714151)
- [引戸割付](https://appshunter.io/ios/app/id6758154871)

All apps by Satoshi Takahashi: https://appshunter.io/developer/1204658453

## Related topics

[satoripop](https://appshunter.io/ios/topics/satoripop)

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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 2026-06-01.*