# Chemical Solution Simple vs Column Construction Calculator

The clearest difference is update cadence: Chemical Solution Simple at every 3 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.

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

Chemical Solution Simple ships an update every 3 months, Column Construction Calculator every 38 months. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Chemical Solution Simple | Column Construction Calculator |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chemical-solution-simple/id1080912267/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 38 months |
| Monetization | Paid | — |
| Size | 1 MB | 34 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roman Volinsky](https://appshunter.io/developer/977951850) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### Chemical Solution Simple

[App page](https://appshunter.io/ios/app/chemical-solution-simple/id1080912267)

This app assists in preparing chemical solutions through dissolution and dilution. It calculates moles, molar masses, required solute weights, and starting solution volumes, supporting various concentration units.

**Highlights:** Solution preparation by dissolution, Solution preparation by dilution, Mole calculation, Molar mass analysis, Required solute weight calculation, Starting solution volume calculation, Supports Molar, mM, uM, g/l, mg/l units

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

**In-app purchases:** none


### Column Construction Calculator

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Chemical Solution Simple free?

Chemical Solution Simple costs $2.99, with no in-app purchases.

### Is Column Construction Calculator free?

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

### Do Chemical Solution Simple or Column Construction Calculator have ads?

Neither Chemical Solution Simple nor Column Construction Calculator shows ads.

### Which is updated more often, Chemical Solution Simple or Column Construction Calculator?

Chemical Solution Simple ships an update every 3 months, and Column Construction Calculator every 38 months. Most recently, Chemical Solution Simple was updated on October 10, 2026 and Column Construction Calculator on October 14, 2026.

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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.*