# cambridge center vs Physics Formulas

The clearest difference is in-app purchases: cambridge center at none against Physics Formulas's 2. cambridge center also leads on update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Physics Formulas sells 2 in-app purchases, starting at $3.99 per 7 days. cambridge center asks for nothing beyond the download.

cambridge center ships an update monthly, Physics Formulas every 2 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | cambridge center | Physics Formulas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 69 MB | 38 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tarik Rayyan](https://appshunter.io/developer/1558938739) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### cambridge center

[App page](https://appshunter.io/ios/app/cambridge-center/id6503661991)

**Features:** macOS Compatibility

**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 | $3.99 | per 7 days |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is cambridge center free?

cambridge center 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 cambridge center or Physics Formulas have ads?

Neither cambridge center nor Physics Formulas shows ads.

### Which is updated more often, cambridge center or Physics Formulas?

cambridge center ships an update monthly, and Physics Formulas every 2 months. Most recently, cambridge center was updated on October 8, 2026 and Physics Formulas on October 4, 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.*