Comparison

Optimized Strength Training vs Lull

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

Head to head
About

Optimized Strength Training

Achieve your fitness goals with personalized workout programs, exercise videos, and nutrition tracking. Set goals, earn badges, and connect with a supportive community. Seamlessly track progress with wearable device integrations.

Highlights
  • Personalized workout programs
  • Exercise demonstration videos
  • Nutrition tracking
  • Goal setting and progress tracking
  • Real-time coach communication
  • Community forums
  • Body measurement tracking
  • Wearable device integration
Features
Read full description

Unlock Your Full Fitness Potential with the Optimized Strength Training App! Transform your body and achieve your health goals like never before. Experience personalized workout programs tailored specifically to your needs and preferences, all at your fingertips! Supercharge Your Fitness Journey: Access cutting-edge training plans meticulously crafted to propel you toward success. Engage in dynamic exercise videos that will guide and inspire you every step of the way. Harness the power of nutrition tracking to make informed choices and fuel your body for optimal performance. Master your lifestyle habits and cultivate a healthier, more balanced way of living. Your Goals, Your Triumphs: Set ambitious health and fitness goals and track your progress with precision. Celebrate your milestones with exclusive badges, marking your triumphs and motivating you to reach new personal bests. Communicate seamlessly with your dedicated coach in real-time, receiving expert guidance and support whenever you need it. Empowerment through Community: Join vibrant digital communities, connecting with like-minded individuals who share your health aspirations. Stay motivated as you embark on this transformative journey together, supporting and inspiring one another every step of the way. Measurements and Results Made Simple: Seamlessly track your body measurements and capture progress photos, witnessing your incredible transformation firsthand. Receive push notifications, keeping you on track with scheduled workouts and activities to ensure you never miss a beat. Seamless Integration, Maximum Efficiency: Connect your Apple Watch to effortlessly track workouts, steps, and habits directly from your wrist. Harness the power of compatibility, syncing with top-tier wearable devices and apps like Apple Health, Garmin, Fitbit, MyFitnessPal, and Withings for a comprehensive overview of your fitness, sleep, nutrition, and body stats. Don't wait another day to unlock the extraordinary potential within you. Download the Optimized Strength Training App today and unleash the best version of yourself!"

About

Lull

This app offers a sound mixer to help quiet your mind and promote sleep and relaxation. Choose from a variety of ambient soundscapes, layer them with individual volume controls, and use the sleep timer for uninterrupted rest.

Highlights
  • Layer up to 5 sounds
  • Individual volume controls
  • Sleep timer
  • Gapless looping
  • Background playback
  • Offline use
Features
Read full description

Lull is a simple, beautiful sound mixer for sleep and anxiety relief. Pick from 29 handcrafted ambient soundscapes, layer them together, and quiet your mind. No account needed. No subscriptions. Just tap, mix, and breathe. CALM YOUR MIND Can't sleep because your mind won't stop? Layer brown noise with distant thunder to drown out racing thoughts. Mix rain on a tent with a cat purring for instant comfort. Lull fills the silence with something safe — so you can let go and rest. SOUNDS Layer up to 5 sounds at once with individual volume controls: - Rain: Gentle rain, forest shower, rain on window, rain gutter, rain on tent, distant thunder - Ocean: Ocean waves, rocky shore, river flow, flowing stream, beachside cafe - Forest: Morning birdsong, night crickets, forest birds, cricket loop - Wind: Gentle breeze - Fan: Desk fan, ceiling fan - Noise: White noise, soft noise, pink noise, brown noise, deep brown (extra-bassy for ADHD focus and deep sleep) - Fire: Fireplace, campfire - Baby: Heartbeat, music box, piano lullaby, cat purring FEATURES - Mix & match: Layer multiple sounds with per-sound volume sliders - Sleep timer: 30 minutes free, watch a short video for 8 hours - Dark, calming interface that won't disturb you at bedtime - Gapless looping: Seamless audio with no gaps between loops - Background playback: Keeps playing when you lock your phone - Lightweight: No account, no internet required after install Whether you're dealing with anxiety, insomnia, or just need to unwind — Lull gives you the sounds that help, without the clutter. No guided meditations, no mood trackers, no wellness fluff. Just sound. All sounds are handcrafted for sleep: real field recordings, mathematically generated noise for a clean consistent texture, and an original D-flat major piano lullaby composed for the baby section.

Screenshots

Optimized Strength Training4 screens
Lull4 screens

Verdict

The call

The clearest difference is ads: Optimized Strength Training at none against Lull's shown. Optimized Strength Training also leads on ratings volume (6 vs 1). Lull's advantage is update cadence (every 5 days vs every 6 weeks). On price, rating, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Optimized Strength Training against 5.0 for Lull. That said, the two scores are not equally well evidenced: Optimized Strength Training has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Optimized Strength Training ships an update every 6 weeks, Lull every 5 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Optimized Strength Training versus Lull: the parameters behind the verdict, then further details
ParameterOptimized Strength TrainingLull
PriceFreeFree
Rating5.0 (6 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings6 — better1
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.515.0 — better
Further details — not scored
Size193 MB79 MB
Age rating4+4+
DeveloperOptimized Strength Training LLCPPV Enterprises LLC

Customer experience

Optimized Strength Training

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Lull

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Optimized Strength Training

No in-app purchases

None

Lull

No in-app purchases

Questions

Is Optimized Strength Training free?
Optimized Strength Training is free to download, with no in-app purchases.
Is Lull free?
Lull is free to download, with no in-app purchases.
Which has better reviews, Optimized Strength Training or Lull?
Optimized Strength Training and Lull are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.
Do Optimized Strength Training or Lull have ads?
Lull shows ads; Optimized Strength Training does not.
Which is updated more often, Optimized Strength Training or Lull?
Optimized Strength Training ships an update every 6 weeks, and Lull every 5 days. Most recently, Optimized Strength Training was updated on November 3, 2026 and Lull on November 5, 2026.

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