# All NMR

> Predicts ¹³C and ¹H NMR spectra from drawn chemical structures. (iPhone/iPad app by Kirill Blinov.)

- Source: https://appshunter.io/ios/app/all-nmr/id808434461 (this page in markdown: same URL + `.md`)
- Developer: [Kirill Blinov](https://appshunter.io/developer/630833420)
- Category: Education, Productivity
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 143 MB
- Languages: English
- Released: 2015-04-23
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/all-nmr/id808434461/reviews.md

## What is All NMR?

App to predict ¹³C and ¹H NMR spectra: draw a structure to see its spectra. The accuracy (Mean Average Error) of the algorithm is about 1.5 ppm for ¹³C and 0.21 ppm for ¹H  (RMSE = 2.8 and 0.31 ppm correspondingly).

- Instantly re-calculate spectra while changing structure; 
- Predicted spectra stored in iCloud and synchronised among all iOS devices and Mac version; 
- Email PDF report; 
- Zoom in spectrum; 
- Zoom in structure (important for iPhone users); 
- Option to display chemical shift values on structure; 
- Simple clean interface. 

The prediction algorithm is a combination of neural network and spheric codes based algorithms.

## Key features

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


## Frequently asked questions about All NMR

### What is the accuracy of All NMR's predictions?

All NMR boasts impressive accuracy, with a Mean Average Error of approximately 1.5 ppm for ¹³C and 0.21 ppm for ¹H. The RMSE is 2.8 ppm for ¹³C and 0.31 ppm for ¹H.

### How does All NMR store and sync data?

Predicted spectra are stored in iCloud, ensuring seamless synchronization across all your iOS devices and the Mac version of the application.

### Can I share my predicted spectra with others using All NMR?

Yes, you can easily share your results by emailing a PDF report of the predicted spectra directly from the app.

### Is All NMR suitable for small screens like the iPhone?

Absolutely. All NMR includes a feature to zoom in on the structure, which is particularly important for users on smaller iPhone screens to view details clearly.

### What learning methodology does All NMR employ?

All NMR utilizes a prediction algorithm that combines neural network and spheric codes based algorithms to generate accurate spectral predictions.

### How often is All NMR updated?

The app was last updated on October 12, 2025, indicating active development and support for the application.

### What devices is All NMR available on?

All NMR is available on iOS devices and Mac, with data syncing across all platforms.

### What is the age rating for All NMR?

All NMR is rated for users aged 4 and up, making it accessible for a wide range of students and professionals.

## Version history (last 2 releases)

### 3.0 — 2025-10-12

New algorithm of ¹³C chemical shifts prediction added. Prediction accuracy improved to 1.5 ppm MAE and 2.8 ppm RMSE.

### 2.5 — 2019-11-04

Integration with the Files app added.

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## More apps by Kirill Blinov

- [Molecular Formula Generator](https://appshunter.io/ios/app/molecular-formula-generator/id646768652)
- [Orange NMR](https://appshunter.io/ios/app/orange-nmr/id662859811)
- [Molecule](https://appshunter.io/ios/app/molecule/id797331776)
- [m/z](https://appshunter.io/ios/app/mz/id1117272212)
- [Find Molecule](https://appshunter.io/ios/app/find-molecule/id1140792040)

All apps by Kirill Blinov: https://appshunter.io/developer/630833420

## Related topics

[nmr solvent peaks](https://appshunter.io/ios/topics/nmr-solvent-peaks) · [simply 1h nmr tutorial](https://appshunter.io/ios/topics/simply-1h-nmr-tutorial)

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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 2026-06-01.*