# Calculus Formulas vs Star Ace Education Centre

The clearest difference is in-app purchases: Star Ace Education Centre at none against Calculus Formulas's 3. Star Ace Education Centre also leads on iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Calculus Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. Star Ace Education Centre asks for nothing beyond the download.

## The numbers

| Metric | Calculus Formulas | Star Ace Education Centre |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 48 MB | 20 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mobin Akhter](https://appshunter.io/developer/1812505286) | [Dreamware Limited](https://appshunter.io/developer/892413586) |

## 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 | $4.99 | per 7 days |
| CalcRef Yearly Premium | $44.99 | per year |
| CalcRef Premium Lifetime | $74.99 | one-time |


### Star Ace Education Centre

[App page](https://appshunter.io/ios/app/star-ace-education-centre/id6763523808)

**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 Star Ace Education Centre free?

Star Ace Education Centre is free to download, with no in-app purchases.

### Do Calculus Formulas or Star Ace Education Centre have ads?

Neither Calculus Formulas nor Star Ace Education Centre shows ads.

---

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