What's New

Built for iOS 6-8, tested on iOS 8.1. No feature changes from previous version. Added video preview to App Store description.

App Description

**CONTAINS NO ADS ** Tested on iOS 8. This is an interactive, color-coded, 3D model with animations and background material for learning the essential details of DNA's structure and chemical components. Scientifically accurate.

How well can you (or your students) visualize the 3D structure of the DNA molecule? Can you spot erroneous depictions of DNA as a left-handed double helix? If you're not satisfied with your (or their) level of understanding of DNA structure or would like to have at your fingertips an instant memory refresher for which nucleotides pair with each other in the double helix etc., then OnScreen DNA Model for iPhone could be worth many times its small price to you.

OnScreen DNA Model provides you with a beautiful--especially on retina displays--color-coded, rotatable, virtual 3D model to play with and to learn the basics of DNA structure, the key to how DNA works in living organisms.

With readily accessible background material on DNA (and its molecules and chemical bonds), OnScreen DNA Model is an excellent way of introducing or reviewing DNA structure, including details that are often skipped over or inadequately explained, such as the major and minor grooves.

Care has been taken to give the model the correct handedness (right, not left, as in so many erroneous depictions), correct number of base pairs per turn, and a visual representation of DNA strand polarity, that is how DNA strands are directional and whether the two strands point in the same direction or not (not). The molecular (as opposed to atomic) level of detail has been chosen to highlight the double helix structure and what differentiates DNA's constituent nucleotides.

The app also offers a couple of simulations that show laboratory phenomena--denaturation and renaturation--important in biotechnology and DNA study. You can see the two DNA strands completely separate under simulated heating that breaks the chemical bonds which normally keep them together in their intertwined helices. Then the strands can recombine in a satisfying display of bonds’ reforming and strands rewinding.

Even after many months of working on OnScreen DNA Model, we still think it’s fun to play with and still enjoy looking at this beautiful natural geometrical form rotating on our screen. We hope you will too. Comments and questions are welcome at [email protected]

iPhone Screenshots

(click to enlarge)

OnScreen DNA Model for iPhone screenshot 1 OnScreen DNA Model for iPhone screenshot 2 OnScreen DNA Model for iPhone screenshot 3 OnScreen DNA Model for iPhone screenshot 4 OnScreen DNA Model for iPhone screenshot 5

App Changes

  • June 24, 2011 New version 2.0.2
  • September 20, 2011 Price increase: $1.99 -> $2.99
  • April 20, 2012 Price decrease: $2.99 -> $0.99
  • April 21, 2012 Price increase: $0.99 -> $2.99
  • May 23, 2012 Price decrease: $2.99 -> $1.99
  • January 12, 2013 New version 2.0.3
  • February 18, 2013 Price increase: $1.99 -> $2.99
  • May 29, 2013 Price decrease: $2.99 -> $1.99
  • June 23, 2013 New version 2.0.4
  • September 18, 2013 New version 2.1
  • October 21, 2013 Price increase: $1.99 -> $2.99
  • October 28, 2013 Price decrease: $2.99 -> $1.99
  • December 28, 2013 Price decrease: $1.99 -> $0.99
  • January 21, 2014 Price increase: $0.99 -> $1.99
  • March 04, 2014 Price increase: $1.99 -> $2.99
  • March 13, 2014 New version 2.2
  • April 01, 2014 Price decrease: $2.99 -> FREE!
  • April 08, 2014 Price increase: FREE! -> $2.99
  • April 25, 2014 Price decrease: $2.99 -> $0.99
  • April 26, 2014 Price increase: $0.99 -> $2.99
  • September 06, 2014 Price decrease: $2.99 -> $0.99
  • October 03, 2014 Price increase: $0.99 -> $1.99
  • November 03, 2014 New version 2.2.1
  • December 13, 2014 Price increase: $1.99 -> $2.99
  • December 18, 2014 Price decrease: $2.99 -> $1.99
  • March 02, 2015 Price increase: $1.99 -> $2.99

Other Apps From OnScreen Science, Inc.

OnScreen Pitch Count OnScreen GPA Pro OnScreen DNA Model OnScreen Gene Transcription OnScreen DNA Replication OnScreen Retrovirus OnScreen Pitch Count for iPad