# Physical Constants vs Physics Lab AR

The clearest difference is rating: Physics Lab AR at 4.7 against Physical Constants's 3.3. Physics Lab AR also leads on ads (none vs shown) and ratings volume (1.8K vs 3). Physical Constants's advantage is in-app purchases (none vs 7) and iOS requirement (12.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Physics Lab AR sells 7 in-app purchases, starting at $1.49 per month. Physical Constants asks for nothing beyond the download.

Physics Lab AR holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: Physics Lab AR has 1.8K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of Physical Constants's written reviews are positive against 47% of Physics Lab AR's.

Physical Constants ships an update every 9 months, Physics Lab AR every 2 months. The most recent releases landed on August 24, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Physical Constants | Physics Lab AR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/physical-constants-ml/id837679891/reviews) | **[4.7 (1.8K ratings)](https://appshunter.io/ios/app/physics-lab-ar/id1298984261/reviews)** |
| Number of ratings | 3 | **1.8K** |
| Positive reviews | 33.3% of reviews | **47.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 25 MB | 177 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takuya Ishikawa](https://appshunter.io/developer/468311118) | [Turtle Sim LLC](https://appshunter.io/developer/1568741108) |

## 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


### Physics Lab AR

[App page](https://appshunter.io/ios/app/physics-lab-ar/id1298984261)

Explore physics through interactive virtual experiments and augmented reality. Build and test electrical circuits with over 100 components, visualize electromagnetic fields, and even design your own galaxy. Ideal for students, teachers, and curious minds of all ages.

**Highlights:** Virtual lab with AR mode, Build 3D electric circuits, 100+ circuit components, Precise scientific calculations, Electromagnetic field visualization, Design custom galaxies

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Component Subscription | $1.49 | per month |
| 60 Diamonds | $0.99 | one-time |
| 10 Diamonds | $0.99 | one-time |
| 120 Diamonds | $1.99 | one-time |
| 300 Diamonds | $4.99 | one-time |
| 680 Diamonds | $9.99 | one-time |
| 1280  Diamonds | $19.99 | one-time |

**What reviewers like**

- 👍 Nice app
- 🚀 Awesome app
- 💡 Good app idea
- 👍 Helpful for learning
- 👍 Useful for teachers

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Unstable app
- 🐛 Buggy app
- 🐛 App doesn't work
- 🔧 Needs improvements

**Reported bugs**

- App crashes when opening experiments or circuits
- Wires don't attach properly
- Objects fall through the table
- Camera position issues
- App freezes or becomes unresponsive

**Requested features**

- Add more components like transistors and potentiometers
- Improve camera controls and view options
- Implement saving and loading of circuits
- Add more tutorials and explanations
- Support for Vietnamese and other languages


## Frequently asked questions

### Is Physical Constants free?

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

### Is Physics Lab AR free?

Physics Lab AR is free to download, with in-app purchases available.

### Which has better reviews, Physical Constants or Physics Lab AR?

Physics Lab AR is rated higher. Physical Constants averages 3.3 out of 5 from 3 ratings, while Physics Lab AR averages 4.7 from 1.8K ratings.

### Do Physical Constants or Physics Lab AR have ads?

Physical Constants shows ads; Physics Lab AR does not.

### Which is updated more often, Physical Constants or Physics Lab AR?

Physical Constants ships an update every 9 months, and Physics Lab AR every 2 months. Most recently, Physical Constants was updated on August 24, 2026 and Physics Lab AR on September 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.*