# Combinatorics Calculator vs Equations Versus Inequalities

The clearest difference is in-app purchases: Equations Versus Inequalities at none against Combinatorics Calculator's 8. Equations Versus Inequalities also leads on iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Combinatorics Calculator sells 8 one-off in-app purchases. Equations Versus Inequalities asks for nothing beyond the download.

## The numbers

| Metric | Combinatorics Calculator | Equations Versus Inequalities |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 180 MB | 19 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Combinatorics Calculator

[App page](https://appshunter.io/ios/app/combinatorics-calculator/id6472453602)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Lifetime Access | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |


### Equations Versus Inequalities

[App page](https://appshunter.io/ios/app/equations-versus-inequalities/id6736602956)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Combinatorics Calculator free?

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

### Is Equations Versus Inequalities free?

Equations Versus Inequalities is free to download, with no in-app purchases.

### Do Combinatorics Calculator or Equations Versus Inequalities have ads?

Neither Combinatorics Calculator nor Equations Versus Inequalities 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.*