# Mastering Spectroscopy vs leARnCHEM

The clearest difference is in-app purchases: leARnCHEM at none against Mastering Spectroscopy's 2. leARnCHEM also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Mastering Spectroscopy sells 1 one-off in-app purchase. leARnCHEM asks for nothing beyond the download.

Mastering Spectroscopy ships an update every 4 months, leARnCHEM every 7 months. The most recent releases landed on September 8, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Mastering Spectroscopy | leARnCHEM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (6 ratings)](https://appshunter.io/ios/app/mastering-spectroscopy/id1196400309/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 437 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Onlea Enterprises Inc.](https://appshunter.io/developer/995311636) | [University of Toronto](https://appshunter.io/developer/502878898) |

## What reviewers say

### Mastering Spectroscopy

[App page](https://appshunter.io/ios/app/mastering-spectroscopy/id1196400309)

Practice organic chemistry by analyzing IR, NMR, and mass spectrum data. Identify functional groups and proton types in graphs to build organic compounds.

**Highlights:** Analyze IR, NMR, and mass spectrum data, Identify functional groups, Identify proton types, Build organic compounds, Practice organic chemistry

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| access to all samples | $1.99 | one-time |


### leARnCHEM

[App page](https://appshunter.io/ios/app/learnchem/id1634480997)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mastering Spectroscopy free?

Mastering Spectroscopy is free to download, with in-app purchases available.

### Is leARnCHEM free?

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

### Do Mastering Spectroscopy or leARnCHEM have ads?

Neither Mastering Spectroscopy nor leARnCHEM shows ads.

### Which is updated more often, Mastering Spectroscopy or leARnCHEM?

Mastering Spectroscopy ships an update every 4 months, and leARnCHEM every 7 months. Most recently, Mastering Spectroscopy was updated on September 8, 2026 and leARnCHEM on May 16, 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.*