Zero Shadow Day

Alok Mandavgane · com.alokm.zsd

Not rated yet 50K+ downloads v1.6.4 3.3 MB Android 4.1+ PEGI 3 · Everyone

Download APK 3.3 MB All versions

Watch the Zero Shadow Day trailer on YouTube

At a glance

Latest version: v1.6.4 (41)
Updated: Aug 3, 2020 (6 years ago)
APK size: 3.3 MB
Requires: Android 4.1+ (API 16)
CPU support: Any (no native code)
Graphics: OpenGL ES 2.0+
Category: Education (app)
Permissions: 3 (1 sensitive)
Website: alokm.com
Developer contact: [email protected]

About this APK

Zero Shadow Day is an app by Alok Mandavgane in the Education category. It has no native code, so it runs on any Android processor.

It asks for 3 permissions, 1 of them sensitive: approximate location.

What's new in v1.6.4

Fix for one day shift error in dates.

Description

From the listing uploaded by “split-store”.

Zero Shadow is a phenomenon when the sun is exactly overhead and the shadows of symmetrical and vertical objects vanishes. This happens for locations between the tropics and is caused by the northern and southern motion of the sun during the course of a year. This app helps you find the Zero Shadow Day for any location. If you are between Tropic of Cancer and Tropic of Capricorn, then on a particular day (one during Uttarayan and other during Dakshinayan) the Sun will pass directly overhead at local noon. At local noon on this day, a vertical pole will cast no shadow. These are called Zero Shadow Days, or ZSD. This app is an aid to the campaign by the Public Outreach and Education Committee of the Astronomical Society of India for celebrating ZSD. Inputs and Content by Dr. Niruj Mohan Ramanujam, ASI POEC Translations by: Kannada - Dr B.S. Shylaja of Jawaharlal Nehru Planetarium Bengaluru and Mrs. Jyotsna Telugu - Teja Teppala Marathi - Dr. Aniket Sule, HBCSE, ASI POEC. Hindi - Alok Mandavgane Spanish - Alvaro Jose Cano Mejia from Colombia

Security & authenticity

Security rating: Trusted

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 verified Aug 3, 2020
Antivirus scan passed Jan 14, 2021
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)6A:CB:5E:7D:A1:C5:3B:94:31:B4:69:61:B3:D5:02:83:5E:7F:C5:16
File MD56d65ad62702b15b0c3aace63f262d034
Uploaded by “split-store” Gold tier · 24,358 followers · uploading since 2019

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 (3)

Zero Shadow Day requests 3 permissions, 1 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Full network access android.permission.INTERNET
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Location android.hardware.location
Portrait screen android.hardware.screen.portrait

Zero Shadow Day 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 Zero Shadow Day APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is 6d65ad62702b15b0c3aace63f262d034.