iNSIGHT Spatial Vision vs NMR Calculator 2
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
iNSIGHT Spatial Vision
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A process called Fourier analysis can be used to mathematically break down any image into a number of basic components. By manipulating these components and then reassembling them, a variety of visual effects can be achieved. This process demonstrates how our visual system analyzes images, and how different types of visual problems can affect our perception of shapes and edges. iNSIGHT is a curriculum supplement for experimental psychology, sensation and perception, vision science, and optometry lab classes. There are two different types of iNSIGHT apps: experiments and interactive demonstrations. Experiments are real psychophysical procedures (NOT simulations) that generate real data. Demonstrations illustrate a visual phenomenon and allow students to manipulate the effect. Each lab is complete with a quick-start guide, detailed instructions, background information, and one or more guided exercises. To see how iNSIGHT works, try the FREE iNSIGHT Color Mixing app. A printable PDF Student Guide that contains the exercises and other supporting materials, and a Teacher Guide are available at www.polyhedronlearning.com/see_apps_insight.html
NMR Calculator 2
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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 ฮผT. - Pulse 2: Pulse duration, flip angle, RF amplitude in Hz, and RF power relative to Pulseย 1. - Ernst angle: Ernst angle and repetition time for a given Tโ relaxation time. NMR Assistant An on-device AI assistant scoped to NMR topics, available where Apple Intelligence is supported. Ask questions in plain language โ the assistant answers using the same calculation engine that powers the calculator, so results are always physically consistent.
Verdict
The clearest difference is price: NMR Calculator 2 at Free against iNSIGHT Spatial Vision's $2.99. NMR Calculator 2 also leads on device support (3 vs 1). iNSIGHT Spatial Vision's advantage is iOS requirement (18.0 vs 26.0). On update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
NMR Calculator 2 is free to download; iNSIGHT Spatial Vision costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
iNSIGHT Spatial Vision ships an update every 39 months, NMR Calculator 2 every 33 months. The most recent releases landed on October 29, 2026 and October 13, 2026 respectively.
| Parameter | iNSIGHT Spatial Vision | NMR Calculator 2 |
|---|---|---|
| Price | $2.99 | Free โ better |
| Update frequency | Every 39 months | Every 33 months โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad, Apple Watch โ better |
| Requires iOS | 18.0 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 125 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Polyhedron Learning Media, Inc. | Jae-Seung Lee |
In-app purchases
iNSIGHT Spatial Vision
No in-app purchases
NMR Calculator 2
No in-app purchases
Questions
Is iNSIGHT Spatial Vision free?
Is NMR Calculator 2 free?
Do iNSIGHT Spatial Vision or NMR Calculator 2 have ads?
Which is updated more often, iNSIGHT Spatial Vision or NMR Calculator 2?
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