iSleepIsWell vs IntervalTimer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSleepIsWell
This app uses your Apple Watch data to provide detailed sleep insights, personalized AI coaching, and a dream journal. It offers relaxation tools and social challenges to help you improve your sleep quality and achieve better rest.
- Smart sleep tracking from Apple Watch
- AI-powered personalized sleep coaching
- Dream journal with interpretation modes
- Social sleep challenges and leaderboards
- Relaxation tools and guided exercises
- Sleep analysis and habit correlation
- Tonight's sleep prediction
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iSleepIsWell transforms how you understand and improve your sleep. Using data from your Apple Watch, this intelligent sleep companion provides deep insights, personalized coaching, and fun social features to help you achieve the rest you deserve. SMART SLEEP TRACKING Automatically captures detailed sleep metrics from Apple Watch including duration, stages, heart rate, and blood oxygen levels. View beautiful visualizations of your nightly patterns and track your progress over time with interactive charts and weekly summaries. AI-POWERED SLEEP COACH Get personalized recommendations from an AI coach that analyzes your unique sleep patterns. Receive actionable insights about your sleep quality, consistency, and areas for improvement. Chat directly with your AI coach to get answers to your sleep questions anytime. DREAM JOURNAL & INTERPRETATION Record your dreams and explore their meaning with dual interpretation modes: traditional and psychological. Build a searchable archive of your dream experiences and discover patterns in your subconscious mind. SLEEP PK & SOCIAL CHALLENGES Compete with friends and family through Game Center integration. Join leaderboards, participate in sleep challenges, and earn achievements as you improve your habits. Turn better sleep into a fun, social experience. RELAXATION & SLEEP TOOLS - US Military Sleep Method: Master the technique used by soldiers to fall asleep in 2 minutes - Breathing Exercises: Guided sessions including 4-7-8 breathing for relaxation - Sleep Aid Videos: Curated content to help you unwind before bed - Smart Alarm: Wake gently during light sleep phases SLEEP ANALYSIS & REPORTS Discover correlations between your daily habits and sleep quality. Generate comprehensive weekly and monthly reports. Track how factors like exercise, caffeine, and stress affect your rest. TONIGHT'S SLEEP PREDICTION Using machine learning and your personal sleep history, iSleep predicts your expected sleep score for the upcoming night. Get proactive suggestions to optimize your evening routine. PREMIUM EXPERIENCE Enjoy a stunning interface inspired by celestial themes with smooth animations and thoughtful design. Choose from multiple themes including light, dark, and automatic modes. PRIVACY FIRST Your sleep data stays on your device and syncs securely via iCloud. We never sell your personal information. Whether you're struggling with insomnia, optimizing athletic recovery, or simply curious about your sleep patterns, iSleep gives you the tools and insights to sleep better, feel better, and live better. Download iSleepIsWell today and wake up to your best self. Apple Official User Documentation (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
IntervalTimer
This app provides a minimalist yet powerful interval timer for high-intensity workouts like HIIT, Tabata, and EMOM. It features professional voice guidance, customizable templates, and a clear, large display for easy readability during exercise.
- Professional voice guidance
- 20+ built-in workout templates
- Customizable interval presets
- Extra-large, readable display
- Three-color phase coding
- Workout session tracking
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Every Round, Get Stronger. A minimalist yet powerful interval timer designed for HIIT, Tabata, EMOM, and all high-intensity workouts. Now featuring 20+ built-in templates and professional voice guidance. Set your intervals in seconds with our precision vertical ruler. Start training with one tap. See your countdown from across the room with our extra-large display—perfect for the gym floor or yoga mat. ◆ BUILT FOR REAL WORKOUTS • Professional Voice Guidance: Male and female voice options for Work, Rest, and Round transitions • Haptic feedback for key phase transitions • Pause, resume, and recovery from interruptions • Auto time correction when returning from background • Background audio cues (Coming Soon): Will work seamlessly with your music ◆ READY-TO-USE TEMPLATES • 20+ Professional Templates built-in • Tabata Classic (20s work / 10s rest × 8) • EMOM 10 (Every Minute on the Minute) • Sprint Starter (Quick high-intensity intervals) • Create and save your own custom presets ◆ PRECISION INTERVAL EDITING • Vertical ruler with 1-second precision • Smart haptic feedback on every tick • Floating value display—your finger never blocks the numbers • Adjust Work, Rest, Intervals, and Rounds with intuitive controls ◆ CRYSTAL-CLEAR COUNTDOWN • Extra-large timer digits readable from 10+ feet away • Landscape mode for maximum visibility • Three-color phase coding: Orange (Work) / Blue (Rest) / Purple (Round Rest) • Always-on display keeps the screen active during workouts ◆ COMPLETE WORKOUT TRACKING • Session summary: total time, work time, rest time, completion rate • Local workout history • Review and repeat past sessions ◆ DESIGNED FOR ATHLETES Perfect for HIIT, CrossFit, circuit training, running intervals, boxing rounds, swimming sets, yoga flows, stretching routines, and any activity that needs precise timing. Train smarter. Train harder. Train with Intervals Timer. emom,gym,fitness,free,custom,simple,stopwatch Privacy Policy :https://hiittimer.pages.dev/Privacy Terms of Service:https://hiittimer.pages.dev/Terms
Screenshots
Verdict
The clearest difference is update cadence: IntervalTimer at every 10 days against iSleepIsWell's every 2 months. IntervalTimer also leads on rating (3.7 vs 3.3). On price, ratings volume, 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. iSleepIsWell sells 3 in-app purchases, starting at $1.99 per month and IntervalTimer sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
IntervalTimer holds the better App Store score, 3.7 against 3.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively.
iSleepIsWell ships an update every 2 months, IntervalTimer every 10 days. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.
| Parameter | iSleepIsWell | IntervalTimer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (3 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 14.3% of reviews | — |
| Number of ratings | 3 | 3 |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 53 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Naihe Hu | WD Studio |
Customer experience
iSleepIsWell
IntervalTimer
In-app purchases
iSleepIsWell
- Monthly Pro$1.991 Month
- Yearly Pro$14.991 Year
- Pro Member - Lifetime$19.99
IntervalTimer
- PRO Monthly $1.99$1.991 Month
- PRO Annual $19.99$9.991 Year
- Interval Timer Pro Lifetime$39.99
Questions
Is iSleepIsWell free?
Is IntervalTimer free?
Which has better reviews, iSleepIsWell or IntervalTimer?
Do iSleepIsWell or IntervalTimer have ads?
Which is updated more often, iSleepIsWell or IntervalTimer?
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