# Physics vs my Periodic system

The clearest difference is price: Physics at Free against my Periodic system's $9.99. my Periodic system's advantage is in-app purchases (none vs 4) and update cadence (every 2 days vs every 2 months). On ads there is nothing between them.

Physics is free to download; my Periodic system costs $9.99 up front. Physics sells 4 in-app purchases, starting at $1.99 per month. my Periodic system asks for nothing beyond the download.

Physics ships an update every 2 months, my Periodic system every 2 days. The most recent releases landed on October 24, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Physics | my Periodic system |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 3 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nikita Chernykh](https://appshunter.io/developer/1448243728) | [Anders Falck](https://appshunter.io/developer/941097539) |

## What reviewers say

### 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 |


### my Periodic system

[App page](https://appshunter.io/ios/app/my-periodic-system/id6743343726)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Physics free?

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

### Is my Periodic system free?

my Periodic system costs $9.99, with no in-app purchases.

### Do Physics or my Periodic system have ads?

Neither Physics nor my Periodic system shows ads.

### Which is updated more often, Physics or my Periodic system?

Physics ships an update every 2 months, and my Periodic system every 2 days. Most recently, Physics was updated on October 24, 2026 and my Periodic system on October 2, 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.*