# Column Construction Calculator vs Stoichiometry

The clearest difference is update cadence: Stoichiometry at every 2 months against Column Construction Calculator's every 38 months. Column Construction Calculator's advantage is price ($1.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Column Construction Calculator costs $1.99 and Stoichiometry $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Column Construction Calculator ships an update every 38 months, Stoichiometry every 2 months. The most recent releases landed on November 6, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Column Construction Calculator | Stoichiometry |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 2 months** |
| Monetization | — | Paid |
| Size | 34 MB | 1 MB |
| Requires iOS | **16.0** | 17.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Roman Volinsky](https://appshunter.io/developer/977951850) |

## What reviewers say

### Column Construction Calculator

[App page](https://appshunter.io/ios/app/column-construction-calculator/id1148046540)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Column Construction Calculator free?

Column Construction Calculator costs $1.99, with no in-app purchases.

### Is Stoichiometry free?

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

### Do Column Construction Calculator or Stoichiometry have ads?

Neither Column Construction Calculator nor Stoichiometry shows ads.

### Which is updated more often, Column Construction Calculator or Stoichiometry?

Column Construction Calculator ships an update every 38 months, and Stoichiometry every 2 months. Most recently, Column Construction Calculator was updated on November 6, 2026 and Stoichiometry on November 13, 2026.

---

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