# Physics App vs ChemSpark

The clearest difference is in-app purchases: Physics App at none against ChemSpark's 5. Physics App also leads on ads (none vs shown) and rating (5.0 vs 4.6). ChemSpark's advantage is ratings volume (8 vs 1). On price and device support there is nothing between them.

Both are free to download. ChemSpark sells 5 one-off in-app purchases. Physics App asks for nothing beyond the download.

Physics App holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ChemSpark has 8 ratings behind it against 1, so its average is the more settled of the two.

Physics App ships an update every 5 days, ChemSpark monthly. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Physics App | ChemSpark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/physics-app/id1533916288/reviews)** | [4.6 (8 ratings)](https://appshunter.io/ios/app/chemspark-chemistry-practice/id6746169230/reviews) |
| Number of ratings | 1 | **8** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 43 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sze Ho Ng](https://appshunter.io/developer/1238639592) | [Lojas Software Corp](https://appshunter.io/developer/1799458054) |

## What reviewers say

### Physics App

[App page](https://appshunter.io/ios/app/physics-app/id1533916288)

This application provides students with multiple-choice exercises to test their physics knowledge. It offers performance statistics to help users track their progress and identify areas for improvement.

**Highlights:** Multiple-choice exercises, Performance statistics, Self-evaluation tools, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### ChemSpark

[App page](https://appshunter.io/ios/app/chemspark-chemistry-practice/id6746169230)

Master chemistry concepts and prepare for exams with this comprehensive study tool. It offers a dynamic way to test knowledge across various topics, featuring diverse question types, visual learning aids, and detailed feedback to track progress and improve understanding.

**Highlights:** Extensive question bank with varying difficulty, Multiple question types (multiple-choice, fill-in-the-blank), Visual learning aids with images and diagrams, Detailed feedback and answer explanations, Structured learning by subject and topic, Progress tracking and score monitoring, Interactive testing interface

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Test Tube of Hints (25) | $0.99 | one-time |
| Combustion Skips (5) | $0.99 | one-time |
| Atomic Skips (15) | $1.99 | one-time |
| Beaker of Hints (60) | $2.99 | one-time |
| Flask of Hints (150) | $4.99 | one-time |


## Frequently asked questions

### Is Physics App free?

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

### Is ChemSpark free?

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

### Which has better reviews, Physics App or ChemSpark?

Physics App is rated higher. Physics App averages 5.0 out of 5 from 1 ratings, while ChemSpark averages 4.6 from 8 ratings.

### Do Physics App or ChemSpark have ads?

ChemSpark shows ads; Physics App does not.

### Which is updated more often, Physics App or ChemSpark?

Physics App ships an update every 5 days, and ChemSpark monthly. Most recently, Physics App was updated on October 7, 2026 and ChemSpark on October 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.*