# 送料計算/利益計算アプリ MerCalc vs アマONE～せどりオールインワンツール～

The clearest difference is in-app purchases: 送料計算/利益計算アプリ MerCalc at none against アマONE～せどりオールインワンツール～'s 1. アマONE～せどりオールインワンツール～'s advantage is ads (none vs shown) and update cadence (monthly vs every 2 months). On price, monetization model, device support and iOS requirement there is nothing between them.

Both are free to download. アマONE～せどりオールインワンツール～ sells 1 in-app purchase, starting at $58.99 per month. 送料計算/利益計算アプリ MerCalc asks for nothing beyond the download.

送料計算/利益計算アプリ MerCalc ships an update every 2 months, アマONE～せどりオールインワンツール～ monthly. The most recent releases landed on October 22, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 送料計算/利益計算アプリ MerCalc | アマONE～せどりオールインワンツール～ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 79.1% of reviews | **92.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 110 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yasufumi Morita](https://appshunter.io/developer/1241372280) | [Watermelon Software Solution Japan, Inc.](https://appshunter.io/developer/1263198404) |

## What reviewers say

### 送料計算/利益計算アプリ MerCalc

[App page](https://appshunter.io/ios/app/mercalc/id1241372281)

This app helps users find the cheapest shipping options for various platforms and carriers. It also calculates profit margins, factoring in sales price, fees, shipping costs, and original cost, to prevent losses. Users can share shipping calculations and track packages.

**Highlights:** Compare shipping costs from 11 carriers, Calculate profit and profit margin, Suggest cheaper shipping services, Supports cash-on-delivery shipping, Share shipping results, Track packages, Save shipping history

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

**In-app purchases:** none


### アマONE～せどりオールインワンツール～

[App page](https://appshunter.io/ios/app/one/id1579675728)

This tool helps sellers quickly compare product prices across Amazon, Rakuten, and Yahoo Shopping by scanning barcodes or searching keywords. It offers detailed profit calculations, alerts for valuable items, and integrates with web versions for product management.

**Highlights:** Barcode scanning for price comparison, Cross-platform price checks (Amazon, Rakuten, Yahoo), Automatic profit and fee calculation, Real-time price and ranking data, Alerts for high-value products, Web version integration for product management

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dominator継続課金 | $58.99 | per month |


## Frequently asked questions

### Is 送料計算/利益計算アプリ MerCalc free?

送料計算/利益計算アプリ MerCalc is free to download, with no in-app purchases.

### Is アマONE～せどりオールインワンツール～ free?

アマONE～せどりオールインワンツール～ is free to download, with in-app purchases available.

### Do 送料計算/利益計算アプリ MerCalc or アマONE～せどりオールインワンツール～ have ads?

送料計算/利益計算アプリ MerCalc shows ads; アマONE～せどりオールインワンツール～ does not.

### Which is updated more often, 送料計算/利益計算アプリ MerCalc or アマONE～せどりオールインワンツール～?

送料計算/利益計算アプリ MerCalc ships an update every 2 months, and アマONE～せどりオールインワンツール～ monthly. Most recently, 送料計算/利益計算アプリ MerCalc was updated on October 22, 2026 and アマONE～せどりオールインワンツール～ on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*