# 技術士 一次試験（建設部門） vs 河川点検士 | 2026年対策問題

The clearest difference is price: 技術士 一次試験（建設部門） at Free against 河川点検士 | 2026年対策問題's $1.99. 河川点検士 | 2026年対策問題's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 5 months). On ads, device support and iOS requirement there is nothing between them.

技術士 一次試験（建設部門） is free to download; 河川点検士 | 2026年対策問題 costs $1.99 up front. 技術士 一次試験（建設部門） sells 1 one-off in-app purchase. 河川点検士 | 2026年対策問題 asks for nothing beyond the download.

技術士 一次試験（建設部門） ships an update every 5 months, 河川点検士 | 2026年対策問題 monthly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 技術士 一次試験（建設部門） | 河川点検士 | 2026年対策問題 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## What reviewers say

### 技術士 一次試験（建設部門）

[App page](https://appshunter.io/ios/app/id6757377376)

This app offers a comprehensive study tool for the Technician Grade 1 exam (Construction Department). It features approximately 500 practice questions with detailed explanations and progress tracking to maximize learning efficiency. Study anytime, anywhere, even offline.

**Highlights:** Approximately 500 practice questions, Detailed explanations for each question, Progress tracking and visualization of weak areas, Intuitive and one-handed operation, Random and review question modes, Offline study capability

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 技術士（建設部門） 試験対策 | $1.99 | one-time |


### 河川点検士 | 2026年対策問題

[App page](https://appshunter.io/ios/app/2026/id6786794774)

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

**In-app purchases:** none


## Frequently asked questions

### Is 技術士 一次試験（建設部門） free?

技術士 一次試験（建設部門） is free to download, with in-app purchases available.

### Is 河川点検士 | 2026年対策問題 free?

河川点検士 | 2026年対策問題 costs $1.99, with no in-app purchases.

### Do 技術士 一次試験（建設部門） or 河川点検士 | 2026年対策問題 have ads?

Neither 技術士 一次試験（建設部門） nor 河川点検士 | 2026年対策問題 shows ads.

### Which is updated more often, 技術士 一次試験（建設部門） or 河川点検士 | 2026年対策問題?

技術士 一次試験（建設部門） ships an update every 5 months, and 河川点検士 | 2026年対策問題 monthly. Most recently, 技術士 一次試験（建設部門） was updated on October 28, 2026 and 河川点検士 | 2026年対策問題 on October 25, 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.*