Sleep Diary App vs Sleep Cycle Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sleep Diary App
Easily log your sleep durations to analyze your health and become more conscious of your sleep patterns. This app integrates with Apple Health to share your sleep data seamlessly. iPhone 6 users can also track atmospheric pressure changes during sleep.
- Log sleep durations
- Analyze sleep health
- Connect with Apple Health
- Share sleep data
- Monitor atmospheric pressure (iPhone 6)
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Sleep Diary is a convenient way to record duration of sleep to analyze your health. We spend about a third part of our life sleeping. Time came to become more conscious about it with a Sleep Diary. This app will help you easily log your sleep durations to the standard Health app. No gadgets required. In addition, lucky owners of iPhone 6 can monitor how atmospheric pressure changed during their sleep. Connect with Apple Health Connect Sleep Diary to Apple's Health to share your sleep data between them. App will ask you to turn reading and writing of sleep analysis data automatically after the first launch.
Sleep Cycle Tracker
Unwind with sleep sounds, bedtime stories, and wind-down routines. Log your sleep, explore insights from Apple Health, and monitor nighttime sounds. Offers free and premium content for a personalized sleep experience.
- Sleep sounds and white noise
- Bedtime stories and routines
- Sleep journaling and mood logging
- Apple Health sleep insights
- Nighttime sound monitoring
- Offline generated noise
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Unwind with sleep sounds and bedtime stories. Build a wind-down routine, log your night, and explore available sleep insights from Apple Health with Harmoni. SOUNDS FOR YOUR EVENING Explore nature sounds and white, pink and brown noise. Layer sounds, adjust volumes, save favorites and set a sleep timer. Generated noise works offline; other audio needs a connection or a previously cached file. STORIES AND WIND-DOWN ROUTINES Choose a track from illustrated story and soundscape collections. Set your sleep goal and schedule, then follow bedtime activities at your own pace, with optional reminders. YOUR SLEEP JOURNAL Log bedtime, wake time, sleep quality, wake-ups and morning mood. Add a reflection and revisit your entries. Manual check-ins receive an estimated score based on your answers; they do not measure sleep stages. OPTIONAL APPLE HEALTH INSIGHTS See available sleep records, calculated scores and stage details. Stages require compatible data in Apple Health, such as recordings from an Apple Watch. Missing measurements are shown as unavailable. NIGHTTIME SOUND SUMMARIES With microphone permission, monitor sound levels and review detected sound disturbances. Only summaries are saved, not audio recordings. This feature does not identify snoring or diagnose sleep conditions. Start without entering a password using an automatic account. Optional sign-in helps you keep your account across devices. Free and premium content is available. Some sounds and collections require Harmoni Premium; purchase options and current prices are shown in the app. The app interface is currently in English. Stories are not available in every language. Harmoni is a wellness app, not a medical device. Scores are estimates, not diagnoses or treatments. Privacy Policy: https://www.relaxingharmony.app/privacy Terms of Use: https://www.relaxingharmony.app/terms Support: https://www.relaxingharmony.app/contact
Screenshots
Verdict
The clearest difference is rating: Sleep Cycle Tracker at 5.0 against Sleep Diary App's 3.5. Sleep Cycle Tracker also leads on review sentiment (100% vs 59%). Sleep Diary App's advantage is ratings volume (24 vs 1) and iOS requirement (13.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Sleep Diary App sells 3 one-off in-app purchases and Sleep Cycle Tracker sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Sleep Cycle Tracker holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Sleep Diary App has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 59% of Sleep Diary App's written reviews are positive against 100% of Sleep Cycle Tracker's.
Sleep Diary App ships an update fortnightly, Sleep Cycle Tracker monthly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | Sleep Diary App | Sleep Cycle Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (24 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 59.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 24 — better | 1 |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Ivanov | Ready Apps LLC (WA) |
Customer experience
Sleep Diary App
Sleep Cycle Tracker
In-app purchases
Sleep Diary App
- Apple$0.99
- Salad$2.99
- Bag of healthy food$9.99
Sleep Cycle Tracker
- Monthly Subscription$1.991 Month
- Yearly Subscription7 Days trial$9.991 Year
- Lifetime subscription$19.99
Questions
Is Sleep Diary App free?
Is Sleep Cycle Tracker free?
Which has better reviews, Sleep Diary App or Sleep Cycle Tracker?
Do Sleep Diary App or Sleep Cycle Tracker have ads?
Which is updated more often, Sleep Diary App or Sleep Cycle Tracker?
Other comparisons
