# Calculus Formulas vs Qedra

The clearest difference is in-app purchases: Qedra at none against Calculus Formulas's 3. Calculus Formulas's advantage is ads (none vs shown) and iOS requirement (15.1 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Calculus Formulas sells 3 in-app purchases, starting at $2.99 per 7 days. Qedra asks for nothing beyond the download.

## The numbers

| Metric | Calculus Formulas | Qedra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Every 10 days |
| Size | 48 MB | 22 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mobin Akhter](https://appshunter.io/developer/1812505286) | [Matthew Wong](https://appshunter.io/developer/6774040057) |

## What reviewers say

### Calculus Formulas

[App page](https://appshunter.io/ios/app/calculus-formulas-calcref/id6761394165)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| CalcRef Yearly Premium | $24.99 | per year |
| CalcRef Premium Lifetime | $44.99 | one-time |


### Qedra

[App page](https://appshunter.io/ios/app/qedra-university-math-solver/id6803934326)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculus Formulas free?

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

### Is Qedra free?

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

### Do Calculus Formulas or Qedra have ads?

Qedra shows ads; Calculus Formulas does not.

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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.*