Sleep Time - Alarm Calculator
★ 5.0Find an alternative to Sleep Time - Alarm Calculator
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First year: Unknown
Data and scoring
Profile based on reviews and description
- Profile analysed
- Jun 19, 2026
- App updated
- Oct 5, 2026
Store sources
- Google Play · Store data seen: Jun 18, 2026 · Data is over 30 days old — check the source
- RuStore · Store data seen: Oct 12, 2026 · Recently checked
Plans and limits
Plans and free-tier limits are not verified. Free installation does not mean free usage.
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Marketing versus reality estimates how well promised features are supported; stability estimates complaints about crashes and speed. Project activity is calculated from update recency, review activity and store availability. Percentages are not guarantees or success probabilities; missing data does not mean a zero score.
What it actually doesSleep Time is a basic sleep cycle calculator that helps determine optimal wake-up or bedtime. Primarily functions as an alarm with 90-minute cycle calculations, but has stability and interface usability issues.
Actually does
- ✓Sleep tracking75% of reviews
- ✓Calculator
- ✓Alarm clock65% of reviews
- ✓Reminders40% of reviews
- ✓Dark mode(bonus)30% of reviews
- ✓Ad-free(bonus)15% of reviews
- ✓Timer / alarm(bonus)10% of reviews
Common complaints
- ✗Unintuitive interface, unclear how to change settings15% of mentions
«Not intuitive. How do you set your own time? A bunch of times you can click on but nothing happens.»
- ✗Features disappearing in updates15% of mentions
«the feature to find out sleep time by entering wake-up time disappeared»
- ✗Periodic synchronization failures with phone time10% of mentions
«at some point it stopped syncing with the phone's time»
- ✗Declining design quality and performance after updates20% of mentions
«The app started lagging and looking worse visually»
- ✗Missing sleep statistics and history, limited functionality15% of mentions
«It's inconvenient to keep statistics manually. Basically there's nothing but setting an alarm»
What people praise
- ★Really helps you wake up more refreshed and well-rested
«after the first night I woke up at 6:50 and I've never felt so good getting out of bed»
- ★Simple minimalist design, has everything needed
«Simple and convenient, without any frills. For people.»
- ★Convenient two-way calculation (falling asleep→waking up and vice versa)
«You can choose when to wake up if you fall asleep right now or at a specific time. You can also do the opposite»
- ★Quick to open and run, doesn't require much resources
«it opens instantly, not wasting the user's time»
- ★Attractive design and stylish interface
«I liked the app from the very beginning for its interface and colors»