# CalC vs Physics Formulas

The clearest difference is update cadence: CalC at every 4 days against Physics Formulas's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CalC sells 2 in-app purchases, starting at $1.99 per month and Physics Formulas sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CalC ships an update every 4 days, Physics Formulas every 2 months. The most recent releases landed on October 12, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | CalC | Physics Formulas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Size | 297 MB | 38 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Le Van Thanh](https://appshunter.io/developer/1835323565) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### CalC

[App page](https://appshunter.io/ios/app/calc-scientific-calculator/id6751479006)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly | $1.99 | per month |
| Premium yearly | $19.99 | per year |


### 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 CalC free?

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

### Is Physics Formulas free?

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

### Do CalC or Physics Formulas have ads?

Neither CalC nor Physics Formulas shows ads.

### Which is updated more often, CalC or Physics Formulas?

CalC ships an update every 4 days, and Physics Formulas every 2 months. Most recently, CalC was updated on October 12, 2026 and Physics Formulas on October 20, 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.*