SleepHack vs Fever Aid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SleepHack
This app uses adaptive binaural frequencies and an intelligent sleep engine to optimize your sleep cycles for deeper rest and improved performance. It offers performance-first sleep tracking and a smart alarm to wake you at the optimal moment.
- Adaptive binaural frequencies
- Intelligent sleep engine
- Performance-first sleep tracking
- Smart alarm
- Deep sleep enhancement modes
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ADAPTIVE WHITE NOISE ENGINEERED FOR DEEPER SLEEP Sleep isn’t relaxation. Sleep is performance. SleepHack is built for people who want deeper sleep, sharper focus, and higher output — not just background noise. This isn’t another white noise app. This is adaptive sleep optimization. WHY SLEEPHACK? • Adaptive binaural frequencies that shift with your sleep • Engineered sound designed to push deeper rest • Performance-first sleep tracking • Built for high achievers, founders, athletes, and optimizers If you treat your body like hardware, your sleep needs better software. HOW IT WORKS • Intelligent Sleep Engine responds to your movement patterns • Adaptive audio evolves through the night • Designed to support Deep, Core, and REM cycles • Smart alarm that wakes you at the right moment You don’t just play sound. You run a sleep protocol. WHO IT’S FOR • People who wake up tired even after 8 hours • High performers who want a competitive edge • Anyone serious about recovery and mental clarity • Those who want more than “rain sounds” If you care about output, you should care about sleep architecture. FEATURES • Adaptive Binaural Audio • Deep Sleep Enhancement Modes • Smart Alarm • Minimal, performance-driven interface • Ongoing upgrades and sleep protocol refinements STOP GUESSING. START OPTIMIZING. Your sleep is either helping you win or holding you back. Hack it. If you choose to connect your sleep data from HealthKit, SleepHack can use that additional data to improve prediction accuracy as it learns your patterns. Your data is only used with explicit in-app consent, and you remain in control of what is shared. Terms of Service: https://sleephack.app/terms
Fever Aid
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When your child has a fever, the most important thing is knowing what medicine was given and when. Fever Aid helps you track your child’s fever by calculating the next available dose time without complicated calculations. Easily record body temperature, medication history, and symptoms in one place. Key Features Track acetaminophen doses Track ibuprofen doses Automatically calculate alternating medication schedules Show the next available dose time Record body temperature Record symptoms Manage multiple children Home Screen widgets iCloud sync across iPhone and iPad No personal data collection Works completely offline Who It Is For Parents Grandparents Daycare and preschool caregivers Families caring for children with fevers Fever Aid was created to eliminate the question of when the last dose was given so you can focus on caring for your child with confidence.
Screenshots
Verdict
The clearest difference is ads: Fever Aid at none against SleepHack's shown. SleepHack's advantage is iOS requirement (15.1 vs 26.0). On price, update cadence, in-app purchases 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. SleepHack sells 8 in-app purchases, starting at $4.99 per 7 days and Fever Aid sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SleepHack ships an update every 6 days, Fever Aid weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | SleepHack | Fever Aid |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 days — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 112 MB | 10 MB |
| Age rating | 12+ | 4+ |
| Developer | SMB Studio LLC | bareum Kim |
In-app purchases
SleepHack
- Pro Weekly$4.997 Days
- Pro Weekly$6.997 Days
- Pro Monthly$9.991 Month
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- Pro Annual$19.991 Year
- Pro Annual3 Days trial$29.991 Year
- Pro Annual3 Days trial$39.991 Year
- Pro Annual$39.991 Year
- Lifetime AccessFree
Fever Aid
- 개발자에게 커피 도네이션 하기$0.99
- 개발자에게 햄버거 도네이션 하기$4.99
- 개발자에게 식사 도네이션 하기$9.99
Questions
Is SleepHack free?
Is Fever Aid free?
Do SleepHack or Fever Aid have ads?
Which is updated more often, SleepHack or Fever Aid?
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