# Periodic Table vs CodeSTEPS

The clearest difference is in-app purchases: CodeSTEPS at none against Periodic Table's 3. CodeSTEPS also leads on iOS requirement (13.0 vs 18.0). Periodic Table's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Periodic Table sells 3 in-app purchases, starting at $0.99 per month. CodeSTEPS asks for nothing beyond the download.

Periodic Table ships an update every 5 days, CodeSTEPS every 2 weeks. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Periodic Table | CodeSTEPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/periodic-table-chemistry-3d/id1539244235/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | Paid | — |
| Size | 49 MB | 29 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [吉帅 仇](https://appshunter.io/developer/1087837335) | [Dietmar Scheiblhofer](https://appshunter.io/developer/1552585323) |

## What reviewers say

### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-chemistry-3d/id1539244235)

Explore the atomic structure of molecules with advanced 3D visualization. Access a comprehensive periodic table, detailed formulas, and scientific resources for enhanced learning and research.

**Highlights:** 3D molecular visualization, Atomic structure exploration, Comprehensive periodic table, Detailed molecular formulas, Scientific resources database, Chemical analysis tools

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chemistry Pro Monthly | $0.99 | per month |
| Chemistry Pro Yearly | $2.99 | per year |
| Chemistry Pro Lifetime | $6.99 | one-time |


### CodeSTEPS

[App page](https://appshunter.io/ios/app/codesteps/id1635545923)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Table free?

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

### Is CodeSTEPS free?

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

### Do Periodic Table or CodeSTEPS have ads?

Neither Periodic Table nor CodeSTEPS shows ads.

### Which is updated more often, Periodic Table or CodeSTEPS?

Periodic Table ships an update every 5 days, and CodeSTEPS every 2 weeks. Most recently, Periodic Table was updated on October 8, 2026 and CodeSTEPS on October 7, 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.*