# Lumin vs Periodic Table · Chemistry

The clearest difference is price: Lumin at Free against Periodic Table · Chemistry's $1.99. Lumin also leads on update cadence (weekly vs every 4 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Lumin is free to download; Periodic Table · Chemistry costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lumin ships an update weekly, Periodic Table · Chemistry every 4 weeks. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Lumin | Periodic Table · Chemistry |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 weeks |
| Size | 51 MB | 24 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KEATH.AI LTD](https://appshunter.io/developer/1763787536) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## What reviewers say

### Lumin

[App page](https://appshunter.io/ios/app/lumin/id6648776177)

**Features:** macOS Compatibility

**In-app purchases:** none


### Periodic Table · Chemistry

[App page](https://appshunter.io/ios/app/periodic-table-chemistry/id6770173894)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lumin free?

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

### Is Periodic Table · Chemistry free?

Periodic Table · Chemistry costs $1.99, with no in-app purchases.

### Do Lumin or Periodic Table · Chemistry have ads?

Neither Lumin nor Periodic Table · Chemistry shows ads.

### Which is updated more often, Lumin or Periodic Table · Chemistry?

Lumin ships an update weekly, and Periodic Table · Chemistry every 4 weeks. Most recently, Lumin was updated on November 4, 2026 and Periodic Table · Chemistry on October 28, 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.*