# MRCG@LSHTM vs Physics Formulas

The clearest difference is in-app purchases: MRCG@LSHTM at none against Physics Formulas's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Physics Formulas sells 2 in-app purchases, starting at $2.99 per 7 days. MRCG@LSHTM asks for nothing beyond the download.

MRCG@LSHTM ships an update every 6 weeks, Physics Formulas every 2 months. The most recent releases landed on September 26, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | MRCG@LSHTM | Physics Formulas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 26 MB | 38 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Medical Research Council Laboratories](https://appshunter.io/developer/1561002294) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### MRCG@LSHTM

[App page](https://appshunter.io/ios/app/mrcglshtm/id1470950265)

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

**In-app purchases:** none


### Physics Formulas

[App page](https://appshunter.io/ios/app/physics-formulas-physref/id6757826240)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $2.99 | per 7 days |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is MRCG@LSHTM free?

MRCG@LSHTM is free to download, with no in-app purchases.

### Is Physics Formulas free?

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

### Do MRCG@LSHTM or Physics Formulas have ads?

Neither MRCG@LSHTM nor Physics Formulas shows ads.

### Which is updated more often, MRCG@LSHTM or Physics Formulas?

MRCG@LSHTM ships an update every 6 weeks, and Physics Formulas every 2 months. Most recently, MRCG@LSHTM was updated on September 26, 2026 and Physics Formulas on September 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*