# Fysikken vs Physical Constants

The clearest difference is review sentiment: Fysikken at 100% against Physical Constants's 33%. Fysikken also leads on rating (4.0 vs 3.3) and ads (none vs shown). Physical Constants's advantage is in-app purchases (none vs 1) and update cadence (every 9 months vs every 22 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Fysikken sells 1 one-off in-app purchase. Physical Constants asks for nothing beyond the download.

Fysikken holds the better App Store score, 4.0 against 3.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 100% of Fysikken's written reviews are positive against 33% of Physical Constants's.

Fysikken ships an update every 22 months, Physical Constants every 9 months. The most recent releases landed on September 7, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | Fysikken | Physical Constants |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/fysikken/id647188755/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/physical-constants-ml/id837679891/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 22 months | **Every 9 months** |
| Monetization | **Free** | Ad-supported |
| Size | 40 MB | 25 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rune Johannes Overgaard Hoejlund](https://appshunter.io/developer/1720383877) | [Takuya Ishikawa](https://appshunter.io/developer/468311118) |

## What reviewers say

### Fysikken

[App page](https://appshunter.io/ios/app/fysikken/id647188755)

This app is a physics reference tool for high school students, offering over 200 formulas and 100 examples. It features a search function, favorites, and links to related concepts, making it ideal for daily lessons, assignments, and exam preparation.

**Highlights:** Extensive formula library, Over 100 calculation examples, Efficient search functionality, Favorite formulas, Cross-referencing with related concepts, Formula sharing options, Clear and organized layout

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | Free | one-time |


### 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


## Frequently asked questions

### Is Fysikken free?

Fysikken is free to download, with in-app purchases available.

### Is Physical Constants free?

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

### Which has better reviews, Fysikken or Physical Constants?

Fysikken is rated higher. Fysikken averages 4.0 out of 5 from 1 ratings, while Physical Constants averages 3.3 from 3 ratings.

### Do Fysikken or Physical Constants have ads?

Physical Constants shows ads; Fysikken does not.

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

Fysikken ships an update every 22 months, and Physical Constants every 9 months. Most recently, Fysikken was updated on September 7, 2026 and Physical Constants on August 24, 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.*