# Molarity Calcs vs Half That Calculator

The clearest difference is ads: Molarity Calcs at none against Half That Calculator's shown. Molarity Calcs also leads on update cadence (every 4 days vs every 6 months) and monetization model (free vs ad-supported). Half That Calculator's advantage is iOS requirement (13.0 vs 15.5). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Molarity Calcs against 5.0 for Half That Calculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Molarity Calcs ships an update every 4 days, Half That Calculator every 6 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Molarity Calcs | Half That Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/molarity-calcs/id1640884409/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/half-that-calculator/id6462308344/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 6 months |
| Monetization | **Free** | Ad-supported |
| Size | 4 MB | 39 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jeff Schoellerman](https://appshunter.io/developer/1640884411) | [Innovative Tomato, LLC](https://appshunter.io/developer/1265226906) |

## What reviewers say

### Molarity Calcs

[App page](https://appshunter.io/ios/app/molarity-calcs/id1640884409)

This app helps users quickly calculate molarity for various chemistry needs. It supports calculations for mass to volume, volume to mass, and dilutions, making it a handy tool for students and professionals.

**Highlights:** Mass to volume calculations, Volume to mass calculations, Dilution calculations, Fast and efficient, User-friendly interface

**In-app purchases:** none


### Half That Calculator

[App page](https://appshunter.io/ios/app/half-that-calculator/id6462308344)

This app quickly calculates half of any number you enter, supporting both decimals and fractions. It's a handy tool for various projects like crafting, woodworking, and construction.

**Highlights:** Calculate half of any number, Supports decimal input, Supports fraction input (up to 32nds), Useful for crafts and construction, Simple and intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Molarity Calcs free?

Molarity Calcs is free to download, with no in-app purchases.

### Is Half That Calculator free?

Half That Calculator is free to download, with no in-app purchases.

### Which has better reviews, Molarity Calcs or Half That Calculator?

Molarity Calcs and Half That Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Molarity Calcs or Half That Calculator have ads?

Half That Calculator shows ads; Molarity Calcs does not.

### Which is updated more often, Molarity Calcs or Half That Calculator?

Molarity Calcs ships an update every 4 days, and Half That Calculator every 6 months. Most recently, Molarity Calcs was updated on November 3, 2026 and Half That Calculator on November 3, 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.*