# Solve calculation by cellphone vs 通関士試験対策

The clearest difference is ads: 通関士試験対策 at none against Solve calculation by cellphone's shown. Solve calculation by cellphone's advantage is iOS requirement (12.0 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Solve calculation by cellphone sells 1 in-app purchase, starting at $1.99 per month and 通関士試験対策 sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Solve calculation by cellphone ships an update every 5 days, 通関士試験対策 every 4 days. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Solve calculation by cellphone | 通関士試験対策 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 53 MB | 50 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MUTSUMI SUZUKI](https://appshunter.io/developer/1612946812) | [Shuntaro Ide](https://appshunter.io/developer/1880181682) |

## What reviewers say

### Solve calculation by cellphone

[App page](https://appshunter.io/ios/app/solve-calculation-by-cellphone/id6450938144)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited number of problems | $1.99 | per month |


### 通関士試験対策

[App page](https://appshunter.io/ios/app/up/id6774723835)

This app offers comprehensive preparation for the customs specialist exam, featuring past papers, detailed explanations, and personalized practice. It helps identify weaknesses and provides targeted review to build confidence for the actual exam. Offline access and ad-free learning make it convenient for on-the-go study.

**Highlights:** Past exam papers (last 7 years), Detailed explanations and legal tags, Targeted practice for weak areas, Simulated exam mode, Daily recommended problems, Progress tracking and learning analytics, Offline access

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tsukanshi UP Pro Monthly | $3.99 | per month |
| Tsukanshi UP Pro 6 Months | $17.99 | per 6 months |
| Tsukanshi UP Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Solve calculation by cellphone free?

Solve calculation by cellphone is free to download, with in-app purchases available.

### Is 通関士試験対策 free?

通関士試験対策 is free to download, with in-app purchases available.

### Do Solve calculation by cellphone or 通関士試験対策 have ads?

Solve calculation by cellphone shows ads; 通関士試験対策 does not.

### Which is updated more often, Solve calculation by cellphone or 通関士試験対策?

Solve calculation by cellphone ships an update every 5 days, and 通関士試験対策 every 4 days. Most recently, Solve calculation by cellphone was updated on October 8, 2026 and 通関士試験対策 on October 6, 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.*