Freefall Depth Stopwatch

Calculate the exact depth by dropping down an object or calculate speed or time.

NyxCore · com.nyxcore.freefall.drop.calculator

Not rated yet 5K+ downloads v1.19 6.3 MB Android 5.0+ PEGI 3 · Everyone

Download APK 6.3 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.19 (19)
Updated: Mar 23, 2026 (7 months ago)
APK size: 6.3 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Oct 21, 2020 (at least)
Permissions: 11
Website: nyxcore.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Freefall Depth Stopwatch is an app by NyxCore in the Tools category, listed since at least October 2020. It has no native code, so it runs on any Android processor.

Since version 1.17, the APK shrank from 7.4 MB to 6.3 MB and the minimum Android version rose from 4.4 to 5.0. It asks for 11 permissions, none of them sensitive. Compared with version 1.18, it drops 1 permission: “Google Play install referrer”. The app can read the advertising ID that ad and analytics services use.

What's new in v1.19

Version 1.19 - 1.18 ========================== - GDPR Message Update - Compatibility with new android version - Minor bug fix

Description

From the listing uploaded by “appupdater”.

Freefall Depth Stopwatch is two apps in one: 1. A stopwatch: you can measure the depth of a cliff, a well or a hole by dropping an object and measuring its falling time. Simply press the button as you drop the object. On impact press the button again. Done! Depth, time and even impact Speed are displayed. It’s ideal for mountain climbers, scouts, cave explorers and other adventurers! 2. A calculator: by selecting the falling object and then pressing on Depth, Speed or Time to calculate the remaining values. You won’t find another app in the market that is able to calculate all three with air-resistance (or not). To calculate fall ignoring air resistance simply select in the object list “No air resistance”. Keep in mind that objects falling through the atmosphere have a terminal speed depending on their surface area and their weight. With no air everything falls with the same acceleration with no terminal speed. It’s Ideal for student and teachers who want to verify their results of school exercises and experiments. KEY FEATURES: -Can calculate freefall with/without air-resistance. -Internal super high precision, scientifically correct calculations. -Its fast and very responsive. -You can use volume button as trigger if you like. -Press on Depth, Speed or Time to calculate other two values. - Set units feet or meter. - Its freeee, full and NO TRIAL version. If you found a bug or want an improvement, Please give a good Score, so we have a good motivation to continue improving the app! Have Fun!!! PS: Humans are not “falling” objects!  About the requested Permissions: android.permission.ACCESS_NETWORK_STATE and android.permission.INTERNET - We use both only for unobtrusive Ads from Admob. android.permission.WAKE_LOCK" – To prevent the screen from turning off during measurements.

Version history

3 versions are listed, going back to v1.17. Since v1.19 it requires Android 5.0+.

v1.19 LATEST Mar 23, 2026 6.3 MB TRUSTED v1.18 Jun 11, 2024 7.4 MB TRUSTED v1.17 Jan 6, 2024 7.4 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Mar 23, 2026.
Certificate issued to “nyxcore” 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 Mar 23, 2026
Validated against Google Play Mar 23, 2026
Signed byCN=helios, OU=it, O=nyxcore, L=th, ST=th, C=gr
Signing certificate (SHA-1)7B:F8:20:36:42:44:69:C8:3B:36:10:0C:AB:41:CF:52:E0:1E:1D:B5
File MD53e0aa7098e56641ae67a3bd1909f41c4
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 (11)

Freefall Depth Stopwatch requests 11 permissions, none of them sensitive.

Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.nyxcore.freefall.drop.calculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Remove home-screen shortcuts com.android.launcher.permission.UNINSTALL_SHORTCUT
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

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

Freefall Depth Stopwatch APK: questions and answers

Is there a version of Freefall Depth Stopwatch for older Android phones?

The current version needs Android 5.0 or later. Version 1.18 is the newest listed build that installs on Android 4.4 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.18 · All versions

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 Freefall Depth Stopwatch 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 3e0aa7098e56641ae67a3bd1909f41c4.