# BioChem Sprint 9 vs Valve Explorer

The clearest difference is update cadence: BioChem Sprint 9 at every 2 days against Valve Explorer's weekly. 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.

BioChem Sprint 9 ships an update every 2 days, Valve Explorer weekly. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BioChem Sprint 9 | Valve Explorer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Size | 20 MB | 57 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nguyen Khanh Vy](https://appshunter.io/developer/1868173737) | [Pham Van Thanh](https://appshunter.io/developer/6795206913) |

## What reviewers say

### BioChem Sprint 9

[App page](https://appshunter.io/ios/app/biochem-sprint-9/id6757666372)

**Features:** macOS Compatibility

**In-app purchases:** none


### Valve Explorer

[App page](https://appshunter.io/ios/app/valve-explorer/id6795206911)

**In-app purchases:** none


## Frequently asked questions

### Is BioChem Sprint 9 free?

BioChem Sprint 9 is free to download, with no in-app purchases.

### Is Valve Explorer free?

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

### Do BioChem Sprint 9 or Valve Explorer have ads?

Neither BioChem Sprint 9 nor Valve Explorer shows ads.

### Which is updated more often, BioChem Sprint 9 or Valve Explorer?

BioChem Sprint 9 ships an update every 2 days, and Valve Explorer weekly. Most recently, BioChem Sprint 9 was updated on October 31, 2026 and Valve Explorer on October 24, 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.*