# 1HCSC

> Proton NMR chemical shift calculator using additivity constants. (iPhone/iPad app by EAJ Consulting.)

- Source: https://appshunter.io/ios/app/1hcsc/id376152414 (this page in markdown: same URL + `.md`)
- Developer: [EAJ Consulting](https://appshunter.io/developer/376152417)
- Category: Reference, Education
- Price: $0.99
- Rating: 3.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 3 MB
- Languages: American English
- Released: 2010-06-09
- Data updated: 2026-06-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/1hcsc/id376152414/reviews.md

## What is 1HCSC?

The only proton chemical shift caclulator available for the iPhone. Quickly calculate proton NMR chemical shifts for any proton.  The chemical shift is automatically calculated based on additivity constants.  One can calculate either aliphatic, aromatic or olefinic protons based on substituents and their relative position to the proton whose shift is being calculated.

## Key features

- Proton NMR chemical shift calculation
- Additivity constants method
- Aliphatic proton calculation
- Aromatic proton calculation
- Olefinic proton calculation

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/1hcsc/id376152414/reviews.md

### 1/5 — Please don’t buy it!

*2021-11-12*

The app is a joke. Don’t buy it unless you want to waste your coins. It does nothing even the things highlights in the preview. I love chemistry apps. Unfortunately most of them are prepared by scammers. This is one of them. They don’t provide what they showed in the preview.

I wish I can show you the pictures what the app can do. I tried to past some pictures in this review. But it didn’t allowed me to do so.

## Frequently asked questions about 1HCSC

### What is 1HCSC?

1HCSC is a mobile application designed to calculate proton NMR chemical shifts. It utilizes additivity constants to determine these shifts for different types of protons.

### How does 1HCSC calculate chemical shifts?

The app calculates chemical shifts based on additivity constants, considering the substituents and their positions relative to the proton being analyzed.

### What types of protons can 1HCSC calculate shifts for?

1HCSC can calculate chemical shifts for aliphatic, aromatic, and olefinic protons, providing detailed analysis based on their chemical environment.

### What is the price of 1HCSC?

1HCSC is a paid application, available for $0.99.

### On which devices can I use 1HCSC?

1HCSC is compatible with iPhone, iPad, and iPod devices.

### How often is 1HCSC updated?

The latest version of 1HCSC is 1.1.4, and it was last updated on January 9, 2024.

### What is the age rating for 1HCSC?

1HCSC has an age rating of 4+, making it suitable for a wide range of users.

### Does 1HCSC have ads?

No, 1HCSC does not contain advertisements.

## Version history (last 5 releases)

### 1.1.4 — 2024-01-09

internal improvements

### 1.1.3 — 2020-10-16

- added link to developer's webpage
- layout fixes and improvements

### 1.1.2 — 2017-08-02

- bug fixes and improvements

### 1.1.1 — 2014-04-15

Small bug fix for switched images (Aliphatic and Aromatic) in the About view.

### 1.1 — 2014-04-06

Updated for iOS 7 (now required). Bug fixes.

## Apps similar to 1HCSC

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [LabCal](https://appshunter.io/ios/app/labcal/id288613197) | 1.9 (7) | Free | Reference |

## Related topics

[pca shifts](https://appshunter.io/ios/topics/pca-shifts) · [orbital shift](https://appshunter.io/ios/topics/orbital-shift)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*