# Stoichiometry vs CLEP Chemistry Prep

The clearest difference is price: CLEP Chemistry Prep at $1.99 against Stoichiometry's $2.99. CLEP Chemistry Prep also leads on iOS requirement (11.0 vs 17.1). On ads, in-app purchases and device support there is nothing between them.

Stoichiometry costs $2.99 and CLEP Chemistry Prep $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Stoichiometry | CLEP Chemistry Prep |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 20 MB |
| Requires iOS | 17.1 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roman Volinsky](https://appshunter.io/developer/977951850) | [Gulsen CAKIR](https://appshunter.io/developer/1788187985) |

## What reviewers say

### Stoichiometry

[App page](https://appshunter.io/ios/app/stoichiometry/id1330949637)

This tool helps balance chemical reactions and calculate molar masses, moles, and actual masses of reactants and products. It supports various formula formats and can identify limiting reagents. Data can be sent to another app for gas phase calculations.

**Highlights:** Balance chemical reactions, Calculate molar masses, Determine moles and actual masses, Identify limiting reagents, Supports various formula formats, Integrates with Gas Phase Stoichiometry app

**Features:** Vision Pro support

**In-app purchases:** none


### CLEP Chemistry Prep

[App page](https://appshunter.io/ios/app/clep-chemistry-prep/id6744746926)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stoichiometry free?

Stoichiometry costs $2.99, with no in-app purchases.

### Is CLEP Chemistry Prep free?

CLEP Chemistry Prep costs $1.99, with no in-app purchases.

### Do Stoichiometry or CLEP Chemistry Prep have ads?

Neither Stoichiometry nor CLEP Chemistry Prep shows ads.

---

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