Nothing published. That is not a guarantee the app is problem-free.
No specific positive published.
From our automated analysis, 12 Oct 2026.
This analysis describes version 6.26.391 of the app, analyzed 2026-10-12 . The app may have changed since.
The store currently lists version 6.26.400, updated 2026-10-12.
The app has been updated since this analysis. The findings on this page describe version 6.26.391, not the version now listed on the store.
The developer’s release notes for the newer versions, where we hold them, are in Versions and dates analysed.
Store screenshots supplied by the developer.
Built on science, Sleep Cycle uses sound analysis to track and improve sleep for over 3 million users worldwide. Our AI sleep coach, sleep tracker and Smart Alarm clock app help users to identify potential sleep issues, gain valuable insights into their sleep patterns and build a healthier sleep routine.
Sleep Cycle is the world’s no.1 sleep app with more than 40 million downloads. Track your rest, wake refreshed, and build lifelong sleep habits.
AWARDS & RECOGNITIONS
Sleep Cycle has been awarded Best Sleep App in 2024 by Digital Health Magazine and featured as App of the Month in Wellness Today. In 2024, Sleep Cycle won two Merit Healthcare Awards: Gold for Mobile Digital Health Resources and Silver for Best Use of Artificial Intelligence.
WITH SLEEP CYCLE YOU CAN
• Get guidance based on your sleep patterns with our AI sleep coach Luma.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
Open observations that have not cleared the evidence bar.
Hard to cancel: raised by 6 distinct reviewers (4.8% of 124 reviews scanned)
This observation has not cleared the required evidence standard.
Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.
Nothing was published as a thing to watch for in this assessment. That is not a finding that nothing is wrong with the app.
124 reviews read for this analysis. Each observation keeps the sample and store it was based on.
Can’t cancel — The app didn’t do what it said. Tried to have it track and stop from snoring. Didn’t do anything for snoring. The reason for 1 star is you can’t cancel the subscription. You can’t in Apple because it sends you to another…
Cannot cancel before trial ends — I have spent literal hours trying to find out how to cancel this trial. It does not show under subscriptions and doesn’t recognize my email address when I try to cancel that way. The app was a curiosity…
Impossible to cancel — If you sign up for the free trial anticipate paying for the full annual subscription. They make it impossible to cancel
A sampled review illustrates one person’s experience. It does not establish a finding on its own.
Supporting measurements. They are not a complete list of possible harms or positives. “Not assessed” means we could not measure it — never zero, never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Measurement vocabulary 1.4 · how these are measured
This analysis describes version 6.26.391 of the app, analyzed 2026-10-12 . The app may have changed since.
The store currently lists version 6.26.400, updated 2026-10-12.
The app has been updated since this analysis. The findings on this page describe version 6.26.391, not the version now listed on the store.
Release notes for the newer versions, in the developer’s own words:
Bug fixes and improvements.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Bug fixes and improvements.
Bug fixes and improvements.
Bug fixes and improvements.
Appworthy
sleep-cycle-apple-320606217Assessed 2026-10-12 from 124 user reviews, the store listing and its privacy label. We have not scanned the app's package, so nothing on this page was read from inside the app itself.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
No itemized purchase list is available for this listing.
This assessment is produced automatically. Three independent signals are read — user reviews, the store listing and the store privacy disclosure — and each candidate finding is filed under the sources that support it.
No charge stands on one kind of evidence — with one published exception. A finding is either a measured fact that anyone can reproduce (an ad SDK is in the package; every subscription bills weekly; the privacy label omits a tracker we can see), or it is an interpretation — and an interpretation needs independent sources to agree before it reaches the catch list. The exception is a harm only users can see: a charge may publish from reviews alone, as “Reported by N users”, once enough reviewers raise it to clear that charge’s own published bar. That agreement rule is what replaced the human reviewer, not a model’s confidence.
There is no overall score, on purpose. A 0–99 number was published here until 2026-09-15. It was withdrawn because it discriminated too weakly to be the instrument — 44.7% of every pair of apps tied — and because a single number is a verdict where a count is an observation. What publishes instead is a row of measurements, each of which says what was counted and, where we could not look, says that instead.
Findings under One source only are real reports we do not stand behind as findings. They are shown because withholding them entirely would hide a genuine complaint, and labelled because publishing them as charges would be an accusation off a single source.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.