Strobily Privacy Policy     

Privacy Policy

Last updated: February 4, 2017

I (Brian Coventry) operate the Android applications "Strobily - strobe light" and "Strobily - strobe light donate". This page informs you of my policies regarding the collection, use and disclosure of Personal Information I receive from users of the app.

To begin, I should note that under normal use of the app, none of your personal information is collected. The internet connection is used only to confirm ownership on the paid version and to download ads on the free version. None of your personal information leaves the app in these channels and there are no additional channels besides email.


If you choose to send me an email with the "Email me your problems" button. The app will automatically attach a file "log.txt" to the email. This file contains the Android logcat output from the app. This file contains information about the inner workings of the app and the most sensitive information it may contain is your Google Play username. This file is attached so that I may diagnose glitches described in the email. If you do not wish to share this information, you may choose to not send the attachment.

Additionally, the email contains the version of Strobily you are using, the type of phone you are using, and your Android version. If you do not wish to share this information you may delete these lines from the email.


An unfortunate consequence of the way Android is designed is that the flash light is intimately linked with the camera. In order to turn the flash light on, I must access the camera.

First, it should be made clear that the images captured by the camera are not permanetently stored or transmitted in any way.

There are two modes with regard to the camera: "Preview hack disabled" and "Preview hack enabled". These modes can be accessed by disabling and enabling the "Preview hack" option respectively.

In "Preview hack disabled" mode, which is the default operating state of the app, the images captured by the camera are never accessed by the app. They exist in the camera's internal memory and are never touched by code that I have written.

In "Preview hack enabled" mode, the images captured by the camera are down-sampled to a 1x1 pixel image and are displayed on the screen of the app. The 1x1 pixel images are stored within the app for 1 frame (roughly 1/24 second) before they are replaced by a new image. When the app exists, the last image is permanently deleted.


This app includes two features which take advantage of the microphone included in smartphones.

In the "Music" tab, the microphone records the sound intensities with the mircophone and attempts to flash to the beat of the music.

In the "Tacho" tab, the microphone records the sound and attempts to find dominating frequencies within the sound sample.

In both cases, the signal is immediately processed to a form that cannot be reversed to the original sound. The processed form is destroyed when the app quits and none of the information ever leaves the app.

Changes To This Privacy Policy

This Privacy Policy is effective as of February 4, 2017 and will remain in effect except with respect to any changes in its provisions in the future, which will be in effect immediately after being posted on this page.

I reserve the right to update or change my Privacy Policy at any time and you should check this Privacy Policy periodically. Your continued use of Strobily after we post any modification to the Privacy Policy on this page will constitute your acknowledgement of the modifications and your consent to abide and be bound by the modified Privacy Policy.

If I make any material changes to this Privacy Policy, I will notify you by placing a prominent notice within the app.

Contact Me

If you have any questions about this Privacy Policy, please contact me at