# Chemistry Dictionary vs Physics

The clearest difference is in-app purchases: Chemistry Dictionary at none against Physics's 4. Chemistry Dictionary also leads on device support (3 vs 1) and iOS requirement (8.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Physics sells 4 in-app purchases, starting at $1.99 per month. Chemistry Dictionary asks for nothing beyond the download.

## The numbers

| Metric | Chemistry Dictionary | Physics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (20 ratings)](https://appshunter.io/ios/app/physics-formulas-2026/id1495587959/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 55 MB | 30 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Santosh Mishra](https://appshunter.io/developer/1187693169) | [Nikita Chernykh](https://appshunter.io/developer/1448243728) |

## What reviewers say

### Chemistry Dictionary

[App page](https://appshunter.io/ios/app/chemistry-dictionary-concepts-terms/id1253456847)

**In-app purchases:** none


### Physics

[App page](https://appshunter.io/ios/app/physics-formulas-2026/id1495587959)

This interactive reference app provides a comprehensive collection of physics terms, formulas, and calculators. It's designed to help users prepare for tests and Olympiads by offering clear explanations, interactive tables, and internal search functionality.

**Highlights:** 280+ physics terms and definitions, 250+ categorized physics formulas, 180+ interactive calculators, Interactive tables for knowledge assimilation, Internal search for terms and formulas, Convenient in-app navigation

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional 1 Month | $1.99 | per month |
| Professional 6 Month | $6.99 | per 6 months |
| Professional 12 Month | $14.99 | per year |
| Professional - unlimited | $24.99 | one-time |


## Frequently asked questions

### Is Chemistry Dictionary free?

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

### Is Physics free?

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

### Do Chemistry Dictionary or Physics have ads?

Neither Chemistry Dictionary nor Physics shows ads.

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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.*