Comparison

iNSIGHT Spatial Vision vs Derivative

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

iNSIGHT Spatial Vision

Features
Read full description

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

About

Derivative

Features
Read full description

The DerivativeCalculus is a simple but elegant app to find the derivatives of complex multivariable functions. You can find the partial derivatives of a multivariate function and share it with others or save it locally. You can create a beautiful high quality partial derivative tree and share it with others or save it locally. Derivatives are shown in beautifully written mathematical expression It automatically saves your hard work locally on your device so you can come back and pick up from where you left off as your great effort will not be lost. This app also has a Study page to help you learn important differentiation rules like, product rule, chain rule, quotient rule, ect. This app is perfect for students learning calculus. Sharpen you brain by using this app and learning about the calculus. This is an app for all student groups. From high school to college to university students. Be creative. Enjoy the app!

Screenshots

Derivative4 screens

Verdict

The call

The clearest difference is update cadence: Derivative at monthly against iNSIGHT Spatial Vision's every 39 months. Derivative also leads on device support (3 vs 1) and price ($1.99 vs $2.99). On 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

iNSIGHT Spatial Vision costs $2.99 and Derivative $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iNSIGHT Spatial Vision ships an update every 39 months, Derivative monthly. The most recent releases landed on September 10, 2026 and August 16, 2026 respectively.

Scorecard4 real differences ยท 2 level
iNSIGHT Spatial Vision versus Derivative: the parameters behind the verdict, then further details
ParameteriNSIGHT Spatial VisionDerivative
Price$2.99$1.99 โ€” better
Update frequencyEvery 39 monthsMonthly โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPhone, iPad, iPod โ€” better
Requires iOS18.015.1 โ€” better
Further details โ€” not scored
Size125 MB32 MB
Age rating4+4+
DeveloperPolyhedron Learning Media, Inc.Om Prakash Chapagain

In-app purchases

None

iNSIGHT Spatial Vision

No in-app purchases

None

Derivative

No in-app purchases

Questions

Is iNSIGHT Spatial Vision free?
iNSIGHT Spatial Vision costs $2.99, with no in-app purchases.
Is Derivative free?
Derivative costs $1.99, with no in-app purchases.
Do iNSIGHT Spatial Vision or Derivative have ads?
Neither iNSIGHT Spatial Vision nor Derivative shows ads.
Which is updated more often, iNSIGHT Spatial Vision or Derivative?
iNSIGHT Spatial Vision ships an update every 39 months, and Derivative monthly. Most recently, iNSIGHT Spatial Vision was updated on September 10, 2026 and Derivative on August 16, 2026.

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