NMR Calculator 2
Education
Free · Designed for iPad. Not verified for macOS.
The app shows a list of isotopes with non-zero nuclear spin angular momentum. Select an isotope to view its NMR properties and calculate fundamental NMR parameters.
Information section
For a chosen isotope, this section displays the atomic symbol with mass number, nuclear spin angular momentum, gyromagnetic ratio, and natural abundance.
Calculator section
Update any one parameter in a subsection to recalculate the others.
- Larmor frequencies: External magnetic field and the corresponding Larmor frequencies for the chosen isotope, the proton, and the free electron.
- Time domain: Number of data points, acquisition duration, and dwell time.
- Frequency domain: Number of data points, spectral width, and frequency resolution.
- Pulse 1: Pulse duration, flip angle, and RF amplitude in Hz and μT.
- Pulse 2: Pulse duration, flip angle, RF amplitude in Hz, and RF power relative to Pulse 1.
- Ernst angle: Ernst angle and repetition time for a given T₁ relaxation time.
NMR Assistant
An on-device AI assistant scoped to NMR topics, available where Apple Intelligence is supported. Ask questions in plain language — the assistant answers using the same calculation engine that powers the calculator, so results are always physically consistent.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Introducing NMR Assistant — ask questions about NMR parameters in plain language and get calculated answers instantly.
- The assistant is powered by on-device AI (available where Apple Intelligence is supported) and uses the same calculation engine as the built-in calculator, so all numerical results are physically consistent.
- You can ask things like "What is the Larmor frequency of ¹³C at 9.4 T?" or "What Ernst angle should I use with a T₁ of 2 seconds and a repetition time of 500 ms?" — and the assistant will compute the answer directly, not just describe how to do it.
- The assistant is scoped strictly to NMR topics, so it stays focused and on point.
The developer, Jae-Seung Lee, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jae-Seung Lee
- Size
- 2 MB
- Category
- Education
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple Watch
Requires watchOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2023 Jae-Seung Lee