“The app is simple to use and does what itbsupposed to be. Very straightforward t obuse, and no annoying ads. I have been using the free app for years and that's good enough for me but I upgraded to Pro because they deserve it. Thank you…”
Public review signal · 400 reviews scanned · scope limited to review patterns.
4.8 ★8,906 ratings
100K+Downloads
4+Age rating
—App size
$4.90In-app purchases
About this app
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.…
Preview
Real screenshots from the store listing.
Independent evidence report
Evidence and review signals
This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.
What we measured
Each line is a measurement published as a measurement, never a verdict.
Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.
Developer replies to reviews
Replies to at least 1 review in 20
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
No theme reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.
Graded bands · predicate set 1.4 · how these are measured
What the analysis found
App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.
No ad complaints5 reviews · user report
Highlighted reviews
Representative public review excerpts shown as user reports, not Appworthy audit evidence.
“have been using the app for over a year and there are no ads and it's very easy to use. So I had to support them because I want to keep using this!”
“Great app, quite reliable and helps keep your circadian rhythm healthy. Rarely, it will randomly turn off or act strange but 99% of the time works perfectly. I paid for Pro to support the programmer, but the free version is very…”
Assessment & version history
App changes and Appworthy events in one timeline.
Store listing updated to version 2.3.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Business model$4.90
Prices and terms as disclosed by the store listing.