“The app said I was coughing for 2 hours at night, and I wanted to listen to the recording, which was only available for premium. Since I was offered a free trial, I thought that if I signed up for premium and cancelled immediately I…”
Independent automated assessment · 6 signal sources · 431 reviews scanned · analyzed 2026-10-04.
4.3 ★218,154 ratings
10M+Downloads
4+Age rating
—App size
Free · In-app purchasesIn-app purchases
About this app
Relieve stress, sleep better and wake up rested. Sleep Cycle is your personal sleep tracker and smart alarm clock with a range of features (incl. snore recorder, sleep recorder and sleep sounds) to help you get a good night’s rest and wake up easier. You will be in a better mood, and feel recharged and focused during the day.
Get that slumber that will do wonders for your health. 72% of our users confirm their sleep quality has improved after using Sleep Cycle’s sleep tracker.
⏰ 5 reasons you’ll love Sleep Cycle:
1. A unique sleep tracker: No need to put your phone under your pillow. Just place your device on the nightstand or close by on the floor. 2. Gentle wake-up: Our smart alarm clock goes off at the ideal time for your body so you wake up rested and calm. 3.…
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.
Which version this describes
When we ran this analysis, and what the store lists now.
This analysis describes version 4.26.35-production of the app (the version number recorded inside the package we inspected), analyzed 2026-10-04 . The app may have changed since.
The store currently lists version VARY, updated 2026-09-07.
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
2 themes 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
65–79% 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
From the package we downloaded and read — version 4.26.35-production, scanned 2026-09-17.
Permissions Android classifies as dangerous
3–5 requested
Counted against the eighteen permissions listed in collect-package.ts. A dangerous permission is one Android asks the user to grant; requesting one is not itself a finding.
Analytics or tracking SDKs in the scanned package
3 or more found
Advertising SDKs in the scanned package
None found
Counted as distinct SDKs in the package we scanned. One mediation bundle can contribute several, so this is not a count of advertisers.
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.
Positive evidence 2
Things this app does right, published at the same strengths as the catch list.
No advertising SDKs
No advertising or mediation SDK of any kind was found in the package.
What we saw: No advertising or mediation SDK among the 8 SDKs detected in the package
Developer says data deletion can be requested
The developer's data-safety disclosure on the store states that users can request deletion of their data, or the app's own text offers a way to delete the account. This restates what the developer declares; it is not a test of whether deletion works. Apple publishes no equivalent disclosure, so on an Apple-only listing only the app's own text can support it.
What we saw: The developer's store data-safety disclosure states that data deletion can be requested; we have not seen a deletion control in the app's own text
One source only — shown, not confirmed 3
A single kind of evidence. We publish these because withholding them would be the bigger distortion, and we do not treat any of them as a finding we stand behind.
Reported by users: Hard to cancel
Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.
What we saw: Hard to cancel: raised by 10 distinct reviewers (2.3% of 431 reviews scanned)
Reported by users: Paywall blocks the basics
The core of the app — not extras — sits behind payment, or previously-free function moved behind a paywall.
What we saw: Paywall blocks the basics: raised by 8 distinct reviewers (1.9% of 431 reviews scanned)
In the app's own text: Countdown-timer purchase pressure
The app's own purchase copy attaches a deadline to buying — a countdown, 'offer ends in', 'limited time' — or ships a countdown view on a purchase-screen layout.
What we saw: Deadline pressure in the app's own copy: "Offer expires in:"
Highlighted reviews
Representative public review excerpts shown as user reports, not Appworthy audit evidence.
“I signed up for the free week and didn't really like it too much. The fact that it wants 7 nights of data to know how you sleep ends up paying for a year subscription. I have tried to cancel the subscription so I would not get charged and…”
“stick to regular sleep tracking devices. very easy to start, but tracking isn't the greatest, if you sleep with a fan good luck on the snoring. my watch tracks all this and much much more. Finally got it to link to my Samsung watch and…”
Assessment & version history
App changes and Appworthy events in one timeline.
Store listing updated to version VARY.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Items shown0
Lowest—
Highest—
Google Play does not publish per-purchase prices.