# 「一級建築士」受験対策 vs E

The clearest difference is in-app purchases: E at none against 「一級建築士」受験対策's 1. E also leads on update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement 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. E asks for nothing beyond the download.

「一級建築士」受験対策 ships an update every 3 months, E every 2 weeks. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 「一級建築士」受験対策 | E |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 86.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 92 MB | 62 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TK office](https://appshunter.io/developer/532066480) | [Eisuke Togashi](https://appshunter.io/developer/592398746) |

## What reviewers say

### 「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 |


### E

[App page](https://appshunter.io/ios/app/e-sensor/id6760690492)

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

**In-app purchases:** none


## Frequently asked questions

### 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.

### Is E free?

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

### Do 「一級建築士」受験対策 or E have ads?

Neither 「一級建築士」受験対策 nor E shows ads.

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

「一級建築士」受験対策 ships an update every 3 months, and E every 2 weeks. Most recently, 「一級建築士」受験対策 was updated on September 23, 2026 and E on September 10, 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.*