# TetraScience vs Thor Lithium

The clearest difference is update cadence: TetraScience at every 9 days against Thor Lithium's monthly. 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.

TetraScience ships an update every 9 days, Thor Lithium monthly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TetraScience | Thor Lithium |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Size | 105 MB | 52 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TetraScience Inc.](https://appshunter.io/developer/1097870183) | [江西达伙网络科技有限公司](https://appshunter.io/developer/1234844673) |

## What reviewers say

### TetraScience

[App page](https://appshunter.io/ios/app/tetrascience/id6636511009)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thor Lithium

[App page](https://appshunter.io/ios/app/thor-lithium/id6746757540)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TetraScience free?

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

### Is Thor Lithium free?

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

### Do TetraScience or Thor Lithium have ads?

Neither TetraScience nor Thor Lithium shows ads.

### Which is updated more often, TetraScience or Thor Lithium?

TetraScience ships an update every 9 days, and Thor Lithium monthly. Most recently, TetraScience was updated on October 27, 2026 and Thor Lithium 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.*