# Calculus Formulas vs Aporia

Calculus Formulas and Aporia are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Calculus Formulas sells 3 in-app purchases, starting at $2.99 per 7 days and Aporia sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Calculus Formulas | Aporia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 48 MB | 100 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mobin Akhter](https://appshunter.io/developer/1812505286) | [Omar Esteban Corona Mindiola](https://appshunter.io/developer/6792977786) |

## 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 |


### Aporia

[App page](https://appshunter.io/ios/app/aporia-math-and-physics/id6792977784)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aporia Premium | $9.99 | per month |
| Aporia Premium | $99.99 | per year |


## Frequently asked questions

### Is Calculus Formulas free?

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

### Is Aporia free?

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

### Do Calculus Formulas or Aporia have ads?

Neither Calculus Formulas nor Aporia shows ads.

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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.*