# iJishin vs 「一級建築士」受験対策

The clearest difference is in-app purchases: iJishin at none against 「一級建築士」受験対策's 1. 「一級建築士」受験対策's advantage is review sentiment (87% vs 70%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 「一級建築士」受験対策 sells 1 one-off in-app purchase. iJishin asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | iJishin | 「一級建築士」受験対策 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ijishin/id386745649/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 70.0% of reviews | **86.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 21 MB | 46 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hakusan Corporation](https://appshunter.io/developer/386745652) | [TK office](https://appshunter.io/developer/532066480) |

## What reviewers say

### iJishin

[App page](https://appshunter.io/ios/app/ijishin/id386745649)

This application transforms your iPhone into a seismometer, allowing you to measure and analyze seismic vibrations. You can upload your observations to share with the public and utilize various tools for wave analysis, including graphical displays of power spectrum and displacement.

**Highlights:** Transforms iPhone into a seismometer, Measures seismic vibrations, Analyzes wave data, Uploads seismic observations, Graphical display of power spectrum, Measures velocity and displacement

**Features:** Vision Pro support

**In-app purchases:** none


### 「一級建築士」受験対策

[App page](https://appshunter.io/ios/app/id628381163)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 問題アンロック | $11.99 | one-time |


## Frequently asked questions

### Is iJishin free?

iJishin is free to download, with no in-app purchases.

### Is 「一級建築士」受験対策 free?

「一級建築士」受験対策 is free to download, with in-app purchases available.

### Do iJishin or 「一級建築士」受験対策 have ads?

Neither iJishin nor 「一級建築士」受験対策 shows ads.

### Which is updated more often, iJishin or 「一級建築士」受験対策?

iJishin ships an update every 3 months, and 「一級建築士」受験対策 every 3 months. Most recently, iJishin was updated on November 1, 2026 and 「一級建築士」受験対策 on November 1, 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.*