# Physics at school LITE vs CASSY App

The clearest difference is review sentiment: Physics at school LITE at 100% against CASSY App's 60%. Physics at school LITE also leads on iOS requirement (12.0 vs 15.0). CASSY App's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price and in-app purchases there is nothing between them.

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

Physics at school LITE ships an update every 6 months, CASSY App every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Physics at school LITE | CASSY App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Ad-supported | **Free** |
| Size | 54 MB | 76 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Vascak](https://appshunter.io/developer/868771511) | [LD DIDACTIC GmbH](https://appshunter.io/developer/1083056850) |

## What reviewers say

### Physics at school LITE

[App page](https://appshunter.io/ios/app/physics-at-school-lite/id921358356)

Explore fundamental physics concepts with this educational app. It covers a wide range of topics from mechanics and thermodynamics to atomic and nuclear physics. Ideal for students seeking a comprehensive overview of physics principles.

**Highlights:** Gravitational field, Mechanical vibrations and waves, Molecular Physics and Thermodynamics, Electrostatics and Electric current, Optics and Relativity, Atomic and Nuclear physics

**Features:** macOS Compatibility

**In-app purchases:** none


### CASSY App

[App page](https://appshunter.io/ios/app/cassy-app/id1083056851)

Control scientific measurement devices and display data on your mobile device. Analyze, store, and share results without a PC. Supports a wide range of physics, chemistry, and biology sensors.

**Highlights:** Control CASSY devices, Display measurements (analog/digital, tables, diagrams), Evaluate and store data, Share results wirelessly, Support for physics, chemistry, and biology sensors, WebDAV server integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Physics at school LITE free?

Physics at school LITE is free to download, with no in-app purchases.

### Is CASSY App free?

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

### Do Physics at school LITE or CASSY App have ads?

Physics at school LITE shows ads; CASSY App does not.

### Which is updated more often, Physics at school LITE or CASSY App?

Physics at school LITE ships an update every 6 months, and CASSY App every 3 months. Most recently, Physics at school LITE was updated on November 1, 2026 and CASSY App on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*