# Physical Constants vs السراجي

The clearest difference is ads: السراجي at none against Physical Constants's shown. Physical Constants's advantage is update cadence (every 9 months vs every 28 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Physical Constants ships an update every 9 months, السراجي every 28 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Physical Constants | السراجي |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/physical-constants-ml/id837679891/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 9 months** | Every 28 months |
| Monetization | Ad-supported | — |
| Size | 25 MB | 36 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takuya Ishikawa](https://appshunter.io/developer/468311118) | [Ahmed Elshahawy](https://appshunter.io/developer/1596145330) |

## What reviewers say

### Physical Constants

[App page](https://appshunter.io/ios/app/physical-constants-ml/id837679891)

Access a comprehensive list of physical constants, organized by category for easy searching. This app supports all AppStore languages and allows users to report corrections via email.

**Highlights:** Physical constants database, Categorized by topic, Search functionality, Multi-language support, User feedback for corrections

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

**In-app purchases:** none


### السراجي

[App page](https://appshunter.io/ios/app/id6468821583)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Physical Constants free?

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

### Is السراجي free?

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

### Do Physical Constants or السراجي have ads?

Physical Constants shows ads; السراجي does not.

### Which is updated more often, Physical Constants or السراجي?

Physical Constants ships an update every 9 months, and السراجي every 28 months. Most recently, Physical Constants was updated on October 14, 2026 and السراجي on October 8, 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.*