onSleep vs Sleepwizard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
onSleep
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Sleep tracking made simple. onSleep is a calm, focused sleep tracker that helps you build consistent sleep habits. Set your goals, tap to start a session, and wake up to see how you slept. No complicated setup. Just a few taps and you are tracking tonight. Build better sleep habits +++ +++ +++ +++ +++ +++ Getting enough quality sleep supports energy, focus, mood, and overall wellbeing. onSleep helps you stay consistent by making sleep tracking easy, visible, and gentle. Whether you are adjusting your schedule, working late, or recovering from jet lag, onSleep keeps your routine on track. Key features +++ +++ +++ +++ +++ +++ onSleep includes everything you need for simple and effective sleep tracking: • One-tap sleep and nap session logging • Animated sleep score circle, color-coded by quality • Sleep rings dashboard showing total sleep, score, deep sleep, and consistency • Sleep stage chart with light, deep, REM, and awake breakdown • Sleep debt tracker to see how far ahead or behind you are • Calendar heatmap of your sleep history • Smart bedtime and morning reminders • Sleep coach messages with personalized tips • Quality rating from 1 to 5 stars with optional notes • Apple Health and Health Connect sync for automatic imports • Weekly and monthly trend charts • Consistency gauge and pattern detection • CSV and JSON data export • Custom sleep goals and bedtime schedule Why onSleep? +++ +++ +++ +++ +++ +++ Sleep tools can feel overwhelming when they track too many things at once. onSleep was built with focus on what matters most: helping you sleep better consistently. Nothing else. No clutter. No guilt. Just friendly nudges and clear data. When to use onSleep +++ +++ +++ +++ +++ +++ • When you want to build a regular bedtime routine • When you are curious how much deep sleep you actually get • When you want gentle reminders without annoying alarms • When you need to track sleep debt after a busy week • When you want a single view of your naps and night sleep together Simple by design +++ +++ +++ +++ +++ +++ onSleep is built with a clean, minimal approach so you can focus on rest, not on navigating complicated menus. Tap the moon to start. Tap again when you wake up. Rate your quality and move on with your day. Start sleeping better tonight with onSleep. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Sleepwizard
This app uses AI to analyze your sleep patterns by combining Apple Watch biometrics with your daily context. It provides personalized insights into why your sleep quality fluctuates and offers actionable advice to improve it.
- AI-driven sleep pattern analysis
- Integrates Apple Watch biometrics
- Contextual logging (caffeine, stress, etc.)
- Personalized sleep debt tracking
- Smart bedtime recommendations
- Detailed sleep trends and vitals
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SleepWizard — Your AI Sleep Coach Sleep trackers tell you what happened. SleepWizard tells you why. Most apps show you data: "You slept 6 hours." But they can't tell you why your deep sleep tanked or what to do about it. SleepWizard is different. It combines your Apple Watch biometrics with the context only you can provide — caffeine, alcohol, stress, screens, exercise — and uses AI to find patterns over weeks that you'd never spot yourself. The result? Insights like: "Your deep sleep drops 40% on nights you log alcohol after 7pm. This has happened 7 of the last 8 times." That's not generic advice. That's YOUR data telling YOUR story. WHAT MAKES SLEEPWIZARD DIFFERENT Data Fusion — Apple Watch captures sleep stages, HRV, heart rate, SpO2. You log the context: caffeine, alcohol, stress, screens, exercise. Somni (your AI coach) connects them over time. AI Coach That Actually Knows You — Somni analyzes 7 nights of detailed metrics, 30-day averages, and 7 days of contextual factors. Over 200 data points inform every response. Sleep Debt Tracking — 14-night rolling ledger shows exactly what you owe. Choose gradual (+15 min/night), moderate (+30 min), or aggressive (+45 min) payback plans. Smart Scheduling — Optimal bedtime recommendations based on your debt, chronotype, and goals. Quick Check-Ins — Evening: log substances, stress, screens, exercise in seconds. Morning: rate your mood and energy. Takes 30 seconds. Trends & Vitals — Track duration, efficiency, quality score, sleep stages, HR, HRV, respiratory rate, and SpO2 over 7/30/90 days. MEET SOMNI Somni is your AI sleep coach. Not a chatbot with a sleep FAQ — a coach that correlates your biometrics with your behaviors to find YOUR patterns and give YOU specific advice. Ask anything: "Why did I sleep badly last night?" "What's hurting my deep sleep?" "How do I pay back my sleep debt?" Somni uses your own API key from Anthropic (Claude) or OpenAI (ChatGPT). You choose your provider, you control your data. REQUIREMENTS iPhone with iOS 17+ Apple Watch with watchOS 10+ (for sleep tracking) Optional: Your own Claude or ChatGPT API key for AI coaching PRIVACY FIRST All sleep data stays on your device No account required No cloud uploads AI conversations go directly to your chosen provider — we never see them HealthKit data is never sold or shared SUBSCRIPTION INFORMATION SleepWizard Premium unlocks all features including sleep tracking, sleep debt management, AI coaching, smart scheduling, contextual check-ins, advanced trends, and data export. Annual: $29.99/year ($2.50/month) — includes 14-day free trial Monthly: $3.99/month Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the rate of your selected plan. You can manage and cancel your subscription in your App Store account settings. Any unused portion of a free trial period will be forfeited when you purchase a subscription. Terms of Service: https://sleepwizard.app/terms Privacy Policy: https://sleepwizard.app/privacy GET YOUR SLEEP TOGETHER Download SleepWizard and start your 14-day free trial. No credit card required to start.
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Verdict
The clearest difference is update cadence: Sleepwizard at every 4 days against onSleep's monthly. onSleep's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.2). On price, 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. onSleep sells 2 in-app purchases, starting at $3.99 per month and Sleepwizard sells 6 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
onSleep ships an update monthly, Sleepwizard every 4 days. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.
| Parameter | onSleep | Sleepwizard |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.8 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 26.2 |
| Further details — not scored | ||
| Size | 73 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | appsix | JOSEPH PETEUL |
In-app purchases
onSleep
- onSleep Pro Monthly Plan$3.991 Month
- onSleep Pro Yearly Plan3 Days trial$29.991 Year
Sleepwizard
- Lapwizard tracking$1.991 Month
- SleepWizard Premium$3.991 Month
- Sleepwizard Premium$6.991 Month
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- Sleepwizard tracking14 Days trial$14.991 Year
- SleepWizard Premium14 Days trial$29.991 Year
- Sleepwizard Premium14 Days trial$49.991 Year









