# MESSRC vs Phyzix

The clearest difference is in-app purchases: MESSRC at none against Phyzix's 3. MESSRC also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). Phyzix's advantage is update cadence (every 2 days vs monthly). On price and ads there is nothing between them.

Both are free to download. Phyzix sells 3 in-app purchases, starting at $1.99 per month. MESSRC asks for nothing beyond the download.

MESSRC ships an update monthly, Phyzix every 2 days. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | MESSRC | Phyzix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Size | 245 MB | 8 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AAAMT Verticals Private Limited](https://appshunter.io/developer/1819459821) | [Nguyen Ngoc Tan](https://appshunter.io/developer/1760541639) |

## What reviewers say

### MESSRC

[App page](https://appshunter.io/ios/app/messrc/id1635343262)

**Features:** macOS Compatibility

**In-app purchases:** none


### Phyzix

[App page](https://appshunter.io/ios/app/phyzix-physics-lab/id6784482674)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark | $1.99 | per month |
| Orbit | $14.99 | per year |
| Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is MESSRC free?

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

### Is Phyzix free?

Phyzix is free to download, with in-app purchases available.

### Do MESSRC or Phyzix have ads?

Neither MESSRC nor Phyzix shows ads.

### Which is updated more often, MESSRC or Phyzix?

MESSRC ships an update monthly, and Phyzix every 2 days. Most recently, MESSRC was updated on October 11, 2026 and Phyzix on October 1, 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.*