# 物理公式集 vs E

The clearest difference is in-app purchases: E at none against 物理公式集's 1. E also leads on update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 物理公式集 sells 1 one-off in-app purchase. E asks for nothing beyond the download.

物理公式集 ships an update every 2 months, E every 2 weeks. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 物理公式集 | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1567189780/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 47 MB | 62 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [riku miyamoto](https://appshunter.io/developer/1527433251) | [Eisuke Togashi](https://appshunter.io/developer/592398746) |

## What reviewers say

### 物理公式集

[App page](https://appshunter.io/ios/app/id1567189780)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告の削除 | $1.99 | 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 物理公式集 free?

物理公式集 is free to download, with in-app purchases available.

### Is E free?

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

### Do 物理公式集 or E have ads?

Neither 物理公式集 nor E shows ads.

### Which is updated more often, 物理公式集 or E?

物理公式集 ships an update every 2 months, and E every 2 weeks. Most recently, 物理公式集 was updated on September 22, 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.*