SpinDrops

Graphically explore and edit quantum-mechanical coupled-spin (NMR) experiments.

Michael Tesch · org.spindrops.app

Not rated yet 100+ downloads v2.0.4 10.9 MB Android 4.0+ PEGI 3 · Everyone

Download APK 10.9 MB All versions

At a glance

Latest version: v2.0.4 (19)
Updated: May 19, 2024 (2 years ago)
APK size: 10.9 MB
Requires: Android 4.0+ (API 14)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Graphics: OpenGL ES 2.0+
Category: Education (app)
Listed since: Feb 26, 2021 (at least)
Permissions: 2 (2 sensitive)
Website: spindrops.org
Developer contact: [email protected]

About this APK

SpinDrops is an app by Michael Tesch in the Education category, listed since at least February 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 2 permissions, 2 of them sensitive: read shared storage and modify shared storage.

What's new in v2.0.4

Updates and bug fixes, see spindrops.org/changelog.html for more info.

Description

From the listing uploaded by “appupdater”.

SpinDrops provides a novel approach to understand basic and advanced magnetic resonance experiments and the underlying spin dynamics. The app enables users to learn the fundamental concepts of modern NMR spectroscopy in a systematic and/or playful way. The simple graphical interaction and the immediate feedback with changes to experimental parameters help develop an analytical understanding as well as a well-founded intuition of the mode of action and the design of pulse sequences. The rich dynamics of up to three coupled spins can be explored interactively. The app uses the DROPS representation to depict arbitrary spin states in an intuitive and compact way. The representation is a generalization of the Bloch vector picture and provides a natural, one-to-one mapping between spin states and so-called "droplets".

Security & authenticity

Security rating: Unknown

Signing certificate

Certificate with Google's generic name Google Play App Signing gives the keys it manages this name, but anyone can put it in a certificate, so this alone proves nothing.

Store checks and file details

Developer signature not checked yet May 19, 2024
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)16:31:0B:96:2C:9E:F9:AC:53:A7:BE:2D:6D:B8:BA:E6:20:3B:31:8F
File MD5602e3206572ab7f942488b22ddb150a6
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. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (2)

SpinDrops requests 2 permissions, 2 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE

Required hardware & features

Basic touch input android.hardware.faketouch

SpinDrops APK: questions and answers

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

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the SpinDrops APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Unknown. After downloading, check that the file's MD5 is 602e3206572ab7f942488b22ddb150a6.