Comparison

Light Sleep vs Motor Function

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

Head to head
About

Light Sleep

This app offers a library of professionally recorded white noise sounds designed to improve sleep, reduce stress, and enhance concentration. It features nature sounds, ambient noises, and calming music to create a tranquil environment for relaxation and focus.

Highlights
  • White noise library
  • Nature sounds
  • Relaxation music
  • Sleep improvement
  • Stress reduction
  • Concentration aid
Features
Read full description

Light Sleep is an app dedicated to improving physical and mental health. It provides users with white noise in various scenarios such as sleep, meditation, relaxation, and concentration, helping users obtain short-term tranquility in their busy lives. Each piece of white noise has been carefully recorded and professionally tested to ensure that it can effectively relieve stress, improve sleep quality and improve concentration. Light Sleep has a built-in rich sound library, which includes various sounds from life and nature, such as raindrops hitting windows, birds chirping, waves crashing on the shore, and so on. These sounds can not only make people feel the beauty of nature, but also effectively reduce the noisy sounds in urban life. Light Sleep is not only a powerful application, but also an advocate of a healthy lifestyle. It encourages users to maintain physical and mental balance and health in busy work and life, and at the same time promotes the good development of society. #Suitable for the following people# - Urban people who have poor sleep and suffer from insomnia - Procrastinators who are often distracted and unable to concentrate - Creative people in noisy environments with frequent interruptions - High-pressure people with long-term anxiety and exhaustion - People who want to focus on work or study - People who like to meditate or want to try meditation - People who are easily affected by environmental noise during sleep - Students with high exam and academic pressure - People who want to improve sleep quality This app contains a variety of well-crafted white noises, each of which has been professionally recorded and tested, and its effectiveness has been verified through human experiments. Here are some descriptions of the sounds: - raindrops on the windows The sound of rainy days can always make people feel warm and cozy. Light Sleep has built-in white noise that simulates raindrops hitting the window, allowing users to enjoy the gift of nature as if they are in the situation of continuous spring rain and autumn rain. - Fantasy Piano Song Piano music is a beautiful form of music that can arouse people's deepest emotions. Light Sleep has built-in many dreamy piano songs, ranging from pure timbre, soft tone, to beautiful melody, allowing users to immerse themselves in music, relax and release stress. - birds chirping The chirping of birds is one of nature's most beautiful and peaceful sounds. Light Sleep has built-in a variety of different kinds of bird sounds, such as cuckoo, nightingale, etc., to bring users a cool and comfortable experience, allowing users to forget their busy lives. - The sound of crashing waves The sound of waves crashing on the shore is a sound that can bring pleasant experience to hearing, vision and body. Light Sleep has a variety of built-in white noises of waves crashing on the shore, and you can hear the sound of waves crashing on the reef from a distance, as if you are in the sea, enjoying the embrace and tranquility of the sea. - Firefly lights Fireflies are magical creatures in nature. They shine beautifully at night and leave people with beautiful memories. Light Sleep has a built-in lighting effect that simulates fireflies, allowing users to feel the faint light in the dark, as if they are on the grassland and enjoying the beauty of nature. - In addition to the above-mentioned sounds, Light Sleep also contains various other white noises, such as wind blowing leaves, river flowing, bonfire burning and so on. These sounds can not only eliminate the noisy sounds in the city, but also provide a comfortable and peaceful environment to help users relax and fall into a deeper sleep state.

About

Motor Function

This rehabilitation companion helps MCI patients and seniors track their 12-week recovery journey. It intelligently manages aerobic, strength, balance, and cognitive training with adaptive safety features tailored to individual medical profiles.

Highlights
  • 12-week recovery tracking
  • Aerobic, strength, balance, cognition training
  • Intelligent safety features
  • Smart heart rate zones
  • Flexible course pausing
  • Transparent reports
  • MoCA follow-up tracking
Features
Read full description

MotorFunction — The rehabilitation companion designed for MCI patients and seniors. Track your 12-week recovery journey with just 3 taps. MotorFunction manages four training dimensions—aerobic, strength, balance, and cognition—with intelligent safety features that adapt to your medical profile. Why MotorFunction? - Smart Heart Rate Zones — Tanaka formula calculates age-appropriate targets; beta-blocker users get automatic RPE fallback - Flexible Course Pausing — Pause up to 14 days; paused periods never污染 your statistics - Transparent Reports — Four-dimensional radar charts and adherence formulas you can actually verify - MoCA Follow-up Tracking — Doctor-told vs. self-estimated scores with credibility grading - Family Safety Mode — Critical actions require secondary confirmation No watches? No problem. Taking heart medication? We've got you covered. MotorFunction prioritizes clinical safety, data integrity, and senior-friendly simplicity. Recovery is a journey. MotorFunction makes every check-in count.

Screenshots

Light Sleep4 screens
Motor Function4 screens

Verdict

The call

The clearest difference is in-app purchases: Motor Function at none against Light Sleep's 1. Motor Function also leads on ads (none vs shown) and review sentiment (100% vs 83%). Light Sleep's advantage is ratings volume (44 vs 1). On price, update cadence, device support and iOS requirement 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. Light Sleep sells 1 one-off in-app purchase. Motor Function asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Motor Function holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Light Sleep has 44 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of Light Sleep's written reviews are positive against 100% of Motor Function's.

UpkeepUpdate frequency

Light Sleep ships an update every 3 days, Motor Function weekly. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

Scorecard6 real differences · 4 level
Light Sleep versus Motor Function: the parameters behind the verdict, then further details
ParameterLight SleepMotor Function
PriceFreeFree
Rating4.8 (44 ratings)5.0 (1 ratings) — better
Positive reviews82.6% of reviews100.0% of reviews — better
Number of ratings44 — better1
Update frequencyEvery 3 days — betterWeekly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size93 MB5 MB
Age rating4+4+
Developer亚杰 刘WeMake, Corp.

Customer experience

Light Sleep

All ratings44 ratings
Positive95.5%
Neutral0.0%
Negative4.5%
Written reviews23 reviews
Positive82.6%
Neutral8.7%
Negative8.7%

Motor Function

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Light Sleep

One-time1
  • Unlock all soundsFree
None

Motor Function

No in-app purchases

Questions

Is Light Sleep free?
Light Sleep is free to download, with in-app purchases available.
Is Motor Function free?
Motor Function is free to download, with no in-app purchases.
Which has better reviews, Light Sleep or Motor Function?
Motor Function is rated higher. Light Sleep averages 4.8 out of 5 from 44 ratings, while Motor Function averages 5.0 from 1 ratings.
Do Light Sleep or Motor Function have ads?
Light Sleep shows ads; Motor Function does not.
Which is updated more often, Light Sleep or Motor Function?
Light Sleep ships an update every 3 days, and Motor Function weekly. Most recently, Light Sleep was updated on October 14, 2026 and Motor Function on October 10, 2026.

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