Sleep Fan vs DECUS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sleep Fan
This app provides a simple and effective way to fall asleep faster and stay asleep longer. It offers various calming sounds and customizable timers, with premium features like sleep tracking and additional audio options.
- White noise and calm sleep sounds
- Customizable timer
- Alarm clock with snooze
- Sleep tracking (premium)
- Additional sounds (premium)
- Binaural beats (premium)
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Welcome to Sleep Fan! The ORIGINAL sleep aid app! Sleep Fan has helped countless satisfied users get to bed on time and stay asleep longer. We all know we should be getting more sleep. Studies have shown that a full night's sleep can significantly reduce all-cause mortality. Don’t sacrifice your health and well being. Download Sleep Fan tonight and wake up refreshed in the morning. • Sleep fan is simple and easy to use. • No signup, no hassle. • Listen within seconds. • Choose from an expanded library of sounds: original fan noises, plus Rain, Nighttime crickets, Relaxing meditation, Crashing Waves, and the River. • Single-Day Sleep Tracking: Monitor your sleep cycles, blood oxygen, and heart data to get a personalized Custom Sleep Score. • Apple Health Integration: Syncs seamlessly with Apple Watch and other compatible sleep trackers. • Set a timer for your sleep sounds. • Set the alarm clock to wake you up or hit snooze to get a little more sleep. Sleep Fan is a perfect and simple tool that will reliably aid in the ease of falling asleep. Join the millions of satisfied users that proudly use Sleep Fan every night. **PREMIUM FEATURES** • Long-Term Sleep Trends: Full access to comprehensive Week and Month sleep tracking views. • Ability to overlay binaural beats on top of sleep sounds. • Listen to mind enhancing binaural beats by themselves. • No advertisements. Subscription pricing and terms: Sleep Fan offers an auto-renewing monthly subscription at $1.99/month and an auto-renewing annual subscription at $14.99/year to provide you with unlimited access to the above features while you maintain an active subscription. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. Read more about our terms and conditions here: Terms of service: https://www.yappyapps.com/sleepfan/tos.html Privacy policy: https://www.yappyapps.com/sleepfan/privacypolicy.html
DECUS
Transform your home's appearance for any season or event with AI-powered design concepts. Upload a photo of your space and explore three unique decor ideas, customizing style, color, and lighting. Shop inspiration directly or save your favorite designs.
- AI-generated decor concepts
- Seasonal and event themes
- Customizable style and lighting
- Photo upload and library integration
- Compare multiple design options
- Direct product shopping links
- Design history and favorites
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Beauty • Adornment • Distinction Your space, beautifully reimagined. DECUS helps you picture your home styled for every season and occasion. Start with one photo of your room, porch or dining space, choose your decorating direction, and explore three looks made for your actual space. Find inspiration for everyday living, spring, summer, autumn and winter—and for celebrations including Halloween, Thanksgiving, Christmas, Hanukkah, Valentine’s Day and Easter. Seasonal suggestions arrive when it is time to start planning. Choose a look you love and keep it until you are ready for something new. Compare your original photo with each concept, refine a favorite, save your designs, and explore shopping suggestions to bring your ideas home. AI concepts are inspiration; product availability and real-world results may vary. Your existing Autumn Studio account, saved designs and credits continue in DECUS. Online access is required to create designs. DECUS Plus provides the existing monthly benefits. Optional one-time credit packs are also available. Prices and purchase terms are shown before purchase. Manage or cancel subscriptions in Apple account settings. Privacy: https://autumnstudio.app/privacy.html Terms: https://autumnstudio.app/terms.html Apple standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ As an Amazon Associate, we earn from qualifying purchases. Shopping links are paid links.
Screenshots
Verdict
The clearest difference is ads: DECUS at none against Sleep Fan's shown. DECUS also leads on update cadence (every 4 days vs every 6 weeks) and review sentiment (100% vs 72%). Sleep Fan's advantage is ratings volume (37K vs 1) and iOS requirement (15.6 vs 17.0). On price, in-app purchases, monetization model and device support 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 Fan sells 2 in-app purchases, starting at $1.99 per month and DECUS sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
DECUS holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Sleep Fan has 37K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 72% of Sleep Fan's written reviews are positive against 100% of DECUS's.
Sleep Fan ships an update every 6 weeks, DECUS every 4 days. Both last shipped on November 6, 2026.
| Parameter | Sleep Fan | DECUS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (37K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 72.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 37K — better | 1 |
| Update frequency | Every 6 weeks | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 191 MB | 26 MB |
| Age rating | 4+ | 9+ |
| Developer | Tattlebee | Derrick Frye |
Customer experience
Sleep Fan
DECUS
Bugs and requests
Sleep Fan
Reported bugs
2 issues- App stops playing randomly
- Overheating issues with prolonged use
Requested features
2 requests- No timer option for continuous playback
- Ability to play in background even with phone locked
DECUS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sleep Fan
- Premium Account3 Days trial$1.991 Month
- Premium Account$14.991 Year
DECUS
- DECUS Plus$4.991 Month
- 6 Fall Design Credits$3.99









