# Solubility Products vs Materials VR

The clearest difference is price: Materials VR at Free against Solubility Products's $3.99. Materials VR also leads on update cadence (every 2 months vs every 4 months) and iOS requirement (11.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Materials VR is free to download; Solubility Products costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Solubility Products ships an update every 4 months, Materials VR every 2 months. The most recent releases landed on September 14, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Solubility Products | Materials VR |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 1 MB | 36 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Roman Volinsky](https://appshunter.io/developer/977951850) | [University of Illinois](https://appshunter.io/developer/422670617) |

## What reviewers say

### Solubility Products

[App page](https://appshunter.io/ios/app/solubility-products/id981052864)

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

**In-app purchases:** none


### Materials VR

[App page](https://appshunter.io/ios/app/materials-vr/id1533090685)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solubility Products free?

Solubility Products costs $3.99, with no in-app purchases.

### Is Materials VR free?

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

### Do Solubility Products or Materials VR have ads?

Neither Solubility Products nor Materials VR shows ads.

### Which is updated more often, Solubility Products or Materials VR?

Solubility Products ships an update every 4 months, and Materials VR every 2 months. Most recently, Solubility Products was updated on September 14, 2026 and Materials VR on September 8, 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.*