# Molarity Calcs vs Fast Molality Calculator

The clearest difference is ads: Molarity Calcs at none against Fast Molality Calculator's shown. Molarity Calcs also leads on update cadence (every 4 days vs every 35 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Molarity Calcs ships an update every 4 days, Fast Molality Calculator every 35 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Molarity Calcs | Fast Molality Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/molarity-calcs/id1640884409/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 35 months |
| Monetization | Free | — |
| Size | 4 MB | 30 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Schoellerman](https://appshunter.io/developer/1640884411) | [JIN-HYUNG KIM](https://appshunter.io/developer/1692050199) |

## 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


### Fast Molality Calculator

[App page](https://appshunter.io/ios/app/fast-molality-calculator/id6451112827)

**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 Fast Molality Calculator free?

Fast Molality Calculator is free to download, with no in-app purchases.

### Do Molarity Calcs or Fast Molality Calculator have ads?

Fast Molality Calculator shows ads; Molarity Calcs does not.

### Which is updated more often, Molarity Calcs or Fast Molality Calculator?

Molarity Calcs ships an update every 4 days, and Fast Molality Calculator every 35 months. Most recently, Molarity Calcs was updated on October 24, 2026 and Fast Molality Calculator on October 25, 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.*