Orange NMR vs iORA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Orange NMR
Predict 13C and 1H NMR spectra by drawing molecular structures. Offers instant spectrum recalculation, iCloud synchronization across devices, and PDF report generation. Ideal for chemists and students needing quick spectral analysis.
- Predict 13C and 1H NMR spectra
- Draw molecular structures
- Instant spectrum recalculation
- iCloud synchronization
- Email PDF reports
- Zoomable spectra and structures
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App to predict 13C and 1H NMR spectra: draw a structure to see its spectrum. The accuracy of the algorithm is about 1.9 ppm for 13C and 0.21 ppm for 1H (RMSD=3.4 and 0.31 ppm correspondingly). The number of heavy atoms in structure to predict for free is restricted to 12 atoms. This restriction can be removed by purchasing additional licenses. - Instantly re-calculate spectrum while changing structure; - Predicted spectra stored in iCloud and synchronised among all iOS devices and Mac version (itunes.apple.com/app/orange-nmr/id680184249); - 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 derived by: K. A. Blinov, E. D. Smurnyy, T. S. Churanova, M. E. Elyashberg, A. J. Williams, Chemom. Intell. Lab. Syst. 2009, 97, 91
iORA
Visualize chemical reactions in 3D using quantum-mechanical simulations. This free, interactive application makes complex chemistry concepts accessible and engaging for learners.
- 3D chemical reaction visualization
- Quantum-mechanical simulations
- Interactive learning
- Easy to use interface
- Educational tool
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iORA is a free, easy to use, highly interactive smartphone application that provides 3D visualization of chemical reactions based on quantum-mechanical simulations.
Screenshots
Verdict
The clearest difference is in-app purchases: iORA at none against Orange NMR's 5. iORA also leads on review sentiment (100% vs 67%) and rating (5.0 vs 4.6). Orange NMR's advantage is iOS requirement (5.1.1 vs 14.3). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Orange NMR sells 5 one-off in-app purchases. iORA asks for nothing beyond the download.
iORA holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 9 and 12 respectively. Written reviews point the same way: 67% of Orange NMR's written reviews are positive against 100% of iORA's.
Orange NMR ships an update every 4 months, iORA every 2 months. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.
| Parameter | Orange NMR | iORA |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (9 ratings) | 5.0 (12 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 9 | 12 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 5.1.1 — better | 14.3 |
| Further details — not scored | ||
| Size | 17 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Kirill Blinov | Daniel Ess |
Customer experience
Orange NMR
iORA
In-app purchases
Orange NMR
- 2 NMR Predictions$0.99
- 5 NMR Predictions$1.99
- 10 NMR Predictions$2.99
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- 13C NMR Prediction$99.99
- 1H NMR Prediction$99.99
iORA
No in-app purchases
