# All NMR vs Stoichiometry

The clearest difference is price: All NMR at Free against Stoichiometry's $2.99. All NMR also leads on iOS requirement (12.0 vs 17.1). Stoichiometry's advantage is update cadence (every 2 months vs every 72 months) and device support. On in-app purchases there is nothing between them.

All NMR is free to download; Stoichiometry costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

All NMR ships an update every 72 months, Stoichiometry every 2 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | All NMR | Stoichiometry |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/all-nmr/id808434461/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 72 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 143 MB | 1 MB |
| Requires iOS | **12.0** | 17.1 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Blinov](https://appshunter.io/developer/630833420) | [Roman Volinsky](https://appshunter.io/developer/977951850) |

## What reviewers say

### All NMR

[App page](https://appshunter.io/ios/app/all-nmr/id808434461)

Predict ¹³C and ¹H NMR spectra by drawing chemical structures. Offers instant recalculation, iCloud synchronization across devices, and PDF report generation. Features zoomable spectra and structures with chemical shift values displayed on the structure.

**Highlights:** Predict ¹³C and ¹H NMR spectra, Draw chemical structures, Instant spectrum recalculation, iCloud synchronization, Email PDF reports, Zoomable spectra and structures

**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 All NMR free?

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

### Is Stoichiometry free?

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

### Which is updated more often, All NMR or Stoichiometry?

All NMR ships an update every 72 months, and Stoichiometry every 2 months. Most recently, All NMR was updated on October 23, 2026 and Stoichiometry on October 29, 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.*