# Periodic Table for Chemists vs (Open Source) Periodic Table

The clearest difference is update cadence: Periodic Table for Chemists at every 2 days against (Open Source) Periodic Table's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

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

Periodic Table for Chemists ships an update every 2 days, (Open Source) Periodic Table fortnightly. Both last shipped on November 5, 2026.

## The numbers

| Metric | Periodic Table for Chemists | (Open Source) Periodic Table |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/periodic-table-for-chemists/id6758019544/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Free | — |
| Size | 15 MB | 47 MB |
| Requires iOS | 17.4 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hans Joachim Weidmann](https://appshunter.io/developer/1826468486) | [AHMET EMRE DEDELER](https://appshunter.io/developer/1870913629) |

## What reviewers say

### Periodic Table for Chemists

[App page](https://appshunter.io/ios/app/periodic-table-for-chemists/id6758019544)

Access comprehensive element data and advanced chemistry tools with this intuitive reference app. It offers detailed properties, calculations, and visualization for students and professionals. Works offline and is optimized for mobile devices.

**Highlights:** 118 elements with extensive properties, Advanced chemistry calculations (Zeff, electronegativity), Electronic structure visualization, Powerful search and filtering, Offline access to all data, Interactive periodic table interface, Personal notes and favorites

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

**In-app purchases:** none


### (Open Source) Periodic Table

[App page](https://appshunter.io/ios/app/open-source-periodic-table/id6781818611)

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

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Table for Chemists free?

Periodic Table for Chemists is free to download, with no in-app purchases.

### Is (Open Source) Periodic Table free?

(Open Source) Periodic Table is free to download, with no in-app purchases.

### Do Periodic Table for Chemists or (Open Source) Periodic Table have ads?

Neither Periodic Table for Chemists nor (Open Source) Periodic Table shows ads.

### Which is updated more often, Periodic Table for Chemists or (Open Source) Periodic Table?

Periodic Table for Chemists ships an update every 2 days, and (Open Source) Periodic Table fortnightly. Most recently, Periodic Table for Chemists was updated on November 5, 2026 and (Open Source) Periodic Table on November 5, 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.*