Twilight

United States / US English

Twilight

Urbandroid Team,


Store Category Version Last Update Avg. ratings
Android Health & Fitness 5.4 October 18, 2017 4.58

ASO Score & Checklist

96%
App Name
Your app name is too short. 8 characters

Titles weight a lot in the Play Store algorithm. You can use up to 30 characters so try to add a few important keywords in your title. This will increase your discoverability. Use our Keywords Analysis to find the best keywords for your app.

App Description
The length of your description looks great. 4070 characters

You have 4070 characters. The Play Store algorithm takes app descriptions into account so don't forget to use relevant and important keywords in your description to increase your discoverability. Use our Keywords Analysis to find the best keywords for your app.

Screenshots
Ok, that's perfect.

Ok, that's perfect. You have 19 screenshots. We hope that users can see all your incredible app features. Be sure that your first screenshots showcase your best features.

Versions
Great! You have released a new version of your app less than 3 months ago.

Version 7.7 released on September 29, 2017
7.7
- ability to filter lock screen / home screen wallpaper separately, support for different wallpaper on lock screen and home screen
- only lock screen wallpaper filtering is now default on oreo
- link to help translate the app for every one (menu - translate the app)
7.6
- fix for Oreo's annoying "X apps running in background" notification, look for "Hide notification" on the main screen..
7.5
- Android O adaptive icon support
- fixes in wallpaper filtering

Version 7.5 released on July 27, 2017

Version 7.3 released on January 01, 1970
7.3
- support for ultra-wide screens
- shortcut support (Android 7.1)
- multi window support
7.2
- improved tablet or wide screen landscape view
- various other UI improvements
- asking for WRITE_SETTINGS permission in Android 6+
7.1
- all options are now configurable from a list of options instead of just sliding
- new Play Services and no more Gingerbread support
- automatic navbar filtering on Pixels and Xperia
- translations (big thanks!)

Version 7.2 released on October 16, 2017

Unlock all AppTweak features, start your 7-day free trial

Start your free trial

App Description

Are you having trouble falling asleep? Are your kids hyperactive when playing with the tablet before bed time?
Are you using your smart phone or tablet in the late evening? Twilight may be a solution for you!

Recent research suggests that exposure to blue light before sleep may distort your natural (circadian) rhythm and cause inability to fall asleep.

The cause is the photoreceptor in your eyes, called Melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480nm range which may suppress Melatonin production - a hormone responsible for your healthy sleep-wake cycles.

In experimental scientific studies it has been shown an average person reading on a tablet or smart phone for a couple of hours before bed time may find their sleep delayed by about an hour.

The Twilight app makes your device screen adapt to the time of the day. It filters the flux of blue light emitted by your phone or tablet after sunset and protects your eyes with a soft and pleasant red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.

Get more from Twilight
1) Bed reading: Twilight is more pleasant on the eyes for night reading. Especially as it is able to lower the screen backlight far below the ability of the backligt controls on your screen

2) AMOLED screens: We have tested Twilight on an AMOLED screen for 2.5 years without any sign of depletion or over-burning. If properly configured Twilight causes less light emission (by enabling dimming) with more equal light distribution (dark areas of the screen such as the status bar get tinted). This may in fact increase your AMOLED screen life time.

Basics on circadian rhythm and the role of melatonin
http://en.wikipedia.org/wiki/Melatonin
http://en.wikipedia.org/wiki/Melanopsin
http://en.wikipedia.org/wiki/Circadian_rhythms
http://en.wikipedia.org/wiki/Circadian_rhythm_disorder

Permissions
- location - to find out your current sunset/surise times
- running apps - to stop Twilight in selected apps
- write settings - to set back-light
- network - access smartlight (Philips HUE) to shield you household light from blue

Automation (Tasker or other)
https://sites.google.com/site/twilight4android/automation

Related scientific research

Amplitude Reduction and Phase Shifts of Melatonin, Cortisol and Other Circadian Rhythms after a Gradual Advance of Sleep and Light Exposure in Humans Derk-Jan Dijk, & Co 2012

Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans Joshua J. Gooley, Kyle Chamberlain, Kurt A. Smith & Co, 2011

Effect of Light on Human Circadian Physiology Jeanne F. Duffy, Charles A. Czeisler 2009

Efficacy of a single sequence of intermittent bright light pulses for delaying circadian phase in humans Claude Gronfier, Kenneth P. Wright, & Co 2009

Intrinsic period and light intensity determine the phase relationship between melatonin and sleep in humans Kenneth P. Wright, Claude Gronfier & Co 2009

The Impact of Sleep Timing and Bright Light Exposure on Attentional Impairment during Night Work Nayantara Santhi, Daniel Aeschbach & Co 2008

Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina Farhan H. Zaidi & Co, 2007

High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light. Lockley SW, Brainard GC, Czeisler CA. 2003

Sensitivity of the human circadian pacemaker to nocturnal light: melatonin phase resetting and suppression Jamie M Zeitzer, Derk-Jan Dijk & Co 2000

For a desktop alternative, try RedShift (Linux) or on Windows the app which has no relation to this project whatsoever, whose name cannot be said aloud or whispered as it is a Trademark, lets call it Lord Voldemort of the blue light flux filtering apps.Guessed it? Let us know in the comments.

App Screenshots

Twilight Screenshot} Twilight Screenshot} Twilight Screenshot} Twilight Screenshot}

Twilight Ranking History | Health & Fitness

Twilight daily app ranking in Health & Fitness category for the last 30 days.

Twilight Worldwide Rankings | Health & Fitness

Twilight rankings per country in Health & Fitness category.

Unlock all features after signing up

Get more ASO recommendations, app rankings, store data, keywords insights and more.

Start your free trial

App Keyword Tool

Use AppTweak Keyword tool to audit, optimize and monitor your keywords effectively.


Mobile App Analytics

All insights and data to measure your app’s performance over time and across countries.

Get the latest tips and tricks to improve your ASO Learn all ASO best practices to boost your app on top of the charts and beat your competitors.

  • App Title: 4 Effective Hacks to Improve Your App Store Visibility

    This week’s collaboration is with Yalantis, mobile application development company. In this article, find 4 effective ways to improve your app title in order to maximize your app store visibility. Read the entire post on Yalantis blog. Having a great app is only the beginning of your app developer or marketer road to success. There’s a lot to do in order to achieve your goals. Building a powerful marketing strategy is a crucial step in …

  • 20 Ways to Promote Your App for FREE

    App Store Optimization is absolutely essential to make your app stand out in the crowded App Store. However, if you want to put every chances on your side, you may want to use other ways to get your app known and therefore, to increase your downloads. Here are our 20  – and entirely free – tips to promote your app. Developing an app is the easy part. Getting downloads is harder. Much harder. It requires …