Comparison

Morfify Sleep vs IntervalGuide

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Morfify Sleep

Features
Read full description

Morfify Sleep helps improve sleep position and avoid snoring using iPhone or Apple Watch motion sensing together with intelligent feedback and gentle nudging. Works on iPhone alone or together with Apple Watch. Sleep position can influence breathing comfort, nighttime snoring tendencies, and breathing disturbances during sleep. Morfify Sleep helps users become more aware of body position and actively change it during sleep and supports healthier nighttime positioning habits through gentle haptic feedback and optional audio signals designed to help reduce unwanted sleeping positions commonly associated with snoring and breathing discomfort. Designed for wellness and sleep-position awareness, Morfify Sleep combines iPhone or Apple Watch motion tracking, haptic and audio feedback, and session insights to help users improve nighttime movement and positioning patterns. Features: โ€ข iPhone or Apple Watch sleep-position monitoring โ€ข Gentle haptic and audio feedback โ€ข Sleep position coaching and habit awareness โ€ข Standalone iPhone and/or Apple Watch monitoring โ€ข Wear your iPhone or Apple Watch on your chest during sleep for accurate position tracking โ€ข Integration with Apple Health and HealthKit on Apple Watch โ€ข Automatic synchronization between Apple Watch and iPhone โ€ข Session history and insights โ€ข Smart nighttime guidance โ€ข Optimized for iPhone and Apple Watch Morfify Sleep is intended for wellness and informational purposes only and is not a medical device. Terms of Use: https://morfify.com/terms Privacy Policy: https://morfify.com/privacy

About

IntervalGuide

Features
Read full description

Your workout. Your rules. IntervalGuide is a fully customizable interval timer for HIIT, Tabata, boxing, and circuit training - built to work exactly the way you train. Design your interval workout block by block: set work and rest periods, add rounds, choose audio cues, and train in the right heart rate zone. Shake your iPhone to pause or resume - no need to touch the screen mid-round. Whether you're doing HIIT, boxing rounds, kettlebells, running intervals, or strength-training rest periods, IntervalGuide adapts to your routine, not the other way around. HANDS-FREE CONTROL Shake your iPhone to pause or resume - no need to remove your gloves, stop your set, or fumble with your screen. Perfect for boxing, kettlebells, winter runs, or any workout where touching your phone isn't an option. FULLY CUSTOMIZABLE TIMERS Build workouts your way: - Create unlimited interval blocks with custom durations - Set work, rest, and preparation phases - Add rounds and repeats to any block - Assign colors to visually distinguish each phase - Save and reuse your favorite workouts REAL-TIME HEART RATE Connect your heart rate monitor and train in the right zone: - Polar sensors supported out of the box - Generic Bluetooth Low Energy (BLE) heart rate devices - Live HR display during workouts - Customizable heart rate zones - Apple Health integration AUDIO & HAPTIC CUES Stay focused without watching your screen: - Voice announcements for phase changes - Boxing bell and other sound effects - Vibration alerts to keep you on track - Works with headphones and AirPods APPLE WATCH COMPANION Control your workout from your wrist: - Start, pause, and stop from your Apple Watch - See timer and heart rate at a glance - Full data sync between iPhone and watch WORKOUT HISTORY Track your progress over time: - Automatic session logging - Review past workouts with full details - Heart rate data for every session - Apple Health sync BUILT FOR REAL TRAINING No bloat, no social features, no accounts required. Just a powerful, reliable interval timer that runs in the foreground and never quits on you mid-workout. Works great for: - Boxing & MMA rounds - HIIT & Tabata - Strength training rest periods - Yoga & stretching flows - Running intervals - CrossFit-style WODs - Physical therapy exercises Download IntervalGuide and build the interval timer that fits your training - not someone else's. SUBSCRIPTION IntervalGuide Premium removes all ads, unlocks your full workout history with detailed session stats and HR charts, and lets you export sessions as CSV, Excel, JSON or Text. - IntervalGuide Premium: auto-renewing monthly subscription - Free for the first week for new subscribers, then the price shown in the app - Payment is charged to your Apple Account at confirmation of purchase - Renews automatically unless cancelled at least 24 hours before the end of the current period - Manage or cancel anytime in your Apple Account settings Terms of Use (EULA): https://tremia.app/apps/interval-guide/terms-of-service Privacy Policy: https://tremia.app/apps/interval-guide/privacy-policy

Screenshots

Morfify Sleep4 screens
IntervalGuide4 screens

Verdict

The call

The clearest difference is ads: Morfify Sleep at none against IntervalGuide's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Morfify Sleep sells 2 in-app purchases, starting at $9.99 per month and IntervalGuide sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Morfify Sleep ships an update every 9 days, IntervalGuide every 11 days. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.

Scorecard1 real difference ยท 5 level
Morfify Sleep versus IntervalGuide: the parameters behind the verdict, then further details
ParameterMorfify SleepIntervalGuide
PriceFreeFree
Update frequencyEvery 9 days โ€” betterEvery 11 days
AdsNo โ€” betterYes
In-app purchasesYesYes
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch โ€” better
Requires iOS16.616.0 โ€” better
Further details โ€” not scored
Size14 MB54 MB
Age rating4+4+
DeveloperHenrik Rytter JensenAmir Tairi

In-app purchases

2 purchases

Morfify Sleep

Subscriptions2
  • Morfify Premium Monthly14 Days trial$9.991 Month
  • Morfify Premium Annual14 Days trial$59.991 Year
1 purchases

IntervalGuide

Subscriptions1
  • IntervalGuide Premium7 Days trial$2.991 Month

Questions

Is Morfify Sleep free?
Morfify Sleep is free to download, with in-app purchases available.
Is IntervalGuide free?
IntervalGuide is free to download, with in-app purchases available.
Do Morfify Sleep or IntervalGuide have ads?
IntervalGuide shows ads; Morfify Sleep does not.
Which is updated more often, Morfify Sleep or IntervalGuide?
Morfify Sleep ships an update every 9 days, and IntervalGuide every 11 days. Most recently, Morfify Sleep was updated on September 29, 2026 and IntervalGuide on September 28, 2026.

Other comparisons