Chemistry By Design app icon

Chemistry By Design

An interactive virtual flashcard application for known synthetic sequences

iHelpNYC · air.edu.arizona.oia.sequence

Not rated yet 100K+ downloads v1.9.6 21.8 MB Android 5.0+ PEGI 3 · Everyone

Download APK 21.8 MB All versions
  • Signature matches the Google Play version Details

At a glance

Latest version
v1.9.6 (1009006)
Updated
Aug 13, 2026 (2 months ago)
APK size
21.8 MB
Requires
Android 5.0+ (API 21)
CPU support
ARM 64-bit
Category
Education (app)
Listed since
Apr 25, 2022 (at least)
Permissions
1
Website
chemistrybydesign.oia.arizona.edu
Developer contact
[email protected]

About this APK

Chemistry By Design is an app by iHelpNYC in the Education category, listed since at least April 2022. It includes native code only for ARM 64-bit, so it won't install on phones that can only run 32-bit apps.

Since version 1.9.3, the APK grew from 9.1 MB to 21.8 MB. It asks for 1 permission, none of them sensitive. It asks for the same permissions as version 1.9.5.

What's new in v1.9.6

Rebuilt with latest AIR SDK for improved compatibility.

Description

From the listing uploaded by “appupdater”.

Chemistry By Design is an interactive virtual flashcard application that allows students to test their skills using known synthetic sequences. The goal is to display the reagents, starting materials and products for every single step used in constructing a natural product or pharmaceutical. A continuously growing database, currently featuring hundreds of syntheses of natural products and pharmaceuticals, is now available for browsing and testing your organic chemistry skills. You can choose to start your browsing by selecting from various lists or using the search box.

Version history

4 versions are listed; the oldest rated Trusted is v1.9.3.

v1.9.6 LATEST Aug 13, 2026 21.8 MB TRUSTED v1.9.5 Apr 21, 2026 9.2 MB TRUSTED v1.9.3 Dec 10, 2025 9.1 MB TRUSTED v1.9 Apr 12, 2020 8.6 MB UNKNOWN

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Aug 13, 2026.
  • Certificate issued to “University of Arizona” This is the certificate of the Google Play version.
  • Same certificate as the 2 other versions checked

Store checks and file details

  • Developer signature verified Aug 13, 2026
  • Validated against Google Play Aug 13, 2026
  • Signed byCN=Gary Carstensen, OU=Office of Instruction and Assessment, O=University of Arizona, C=US
  • Signing certificate (SHA-1)13:EC:2F:2B:51:B0:65:73:31:F9:A9:E9:A6:F6:4B:A4:81:9D:C0:D4
  • File MD5a2d423a92263b839492ac909fc3dd05a
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (1)

Chemistry By Design requests 1 permission, none of them sensitive.

Required hardware & features

Chemistry By Design APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Chemistry By Design APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is a2d423a92263b839492ac909fc3dd05a.

Tags

arizona sequence education chemistry design

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