Comparison

Green & Brown Noise Sleep vs Trace Elements

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

Head to head
About

Green & Brown Noise Sleep

This app offers a variety of calming ambient sounds, including green and brown noise, to help users fall asleep faster, stay asleep longer, and improve focus. It features a sound mixer, sleep tracker, and snore recorder to enhance the sleep experience.

Highlights
  • 90+ sleep sounds
  • Green and Brown Noise options
  • Customizable sound mixer
  • Sleep tracker and recorder
  • Snore detector
  • Timer and sleep reminder
Features
Read full description

Green & Brown Noise Sleep is designed to help you fall asleep faster, stay asleep longer, and focus better during the day. Unlike white noise, green noise and brown noise are softer, deeper, and more natural. They help mask background noise without causing irritation, making them ideal for sleep, relaxation, and ADHD focus. Use calming ambient sounds to reduce stress, ease anxiety, and create a peaceful environment anytime, anywhere. Trouble sleeping? Sleep Sounds helps you fall asleep with free rain sleep sounds, white noise and brainwaves! Sleep sounds includes 90+ sleep sounds in categories ranging from: sleeping sounds, nature sounds, rain sounds, white noise, lullaby sounds, ASMR sounds and much more. Sleep Sounds also helps you understand and improve your sleep with its easy-to-use sleep tracker and sleep recorder. Sleep Sounds can help you: 1. Track your sleep, record your sleep talk and snoring 2. Create a comfortable sleep space with sleep sounds and ambient noise 3. Relieve insomnia 4. Block out unwanted noises 5. Ease anxiety and stress 6. Help your baby sleep Highlight features: 1. 90+ sleep sounds 2.Green Noise & Brown Noise,Smooth sound frequencies for deep sleep and calm focus. 3. Sound mixer: mix multiple sounds and create your own soundscapes 4. No limit on playback time 5. Adjust the volume for each sound when creating your own mix 6. Timer: stop the application after a set amount of time 7. Sleep reminder to remind you to sleep at the right time 8. Snore & Sleeptalk Recorder 9. Snore detector informs you of how much you snore during the night 10. Sleep music with alpha waves, delta wave to help you focus and sleep 11. Play in the background Sleep sound categories: 1. White noise: hair dryer, airplane, dryer, vacuum, fan noise 2. Rain sounds: rain sounds on puddle, rain sounds on roof, snow, rain sounds on tent 3. Water sounds: ocean, under water, waterfall, drip, creek 4. Nature sounds: wind, rustling leaves, birds, fire sounds 5. Mediation music 6. ASMR: chewing, tapping, scratching, breathing, whispering, hair clippers, page turning and crackling 7. Brainwaves: Alpha brainwaves, Beta brainwaves and Delta brainwaves Let over 90 high-quality sleep sounds help you sleep in no time. Say goodbye to sleepless night. Download Sleep Sounds today and get a better night's sleep! Subscription Information : Sleep Sounds offers an auto-renewing yearly subscription at $29.99 USD/year and auto-renewing monthly subscription at $9.99 USD/month to provide you with unlimited access to the sounds library and premium features while you maintain an active subscription. Payment will be charged to the payment method connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after purchase. Terms of service: http://bambooswift.info/sleep_terms_of_use.html Privacy policy: http://www.bambooswift.info

About

Trace Elements

This app helps individuals manage restricted diets by logging food intake and estimating nickel or cobalt content. It offers offline functionality, a customizable food database, and trend tracking to monitor daily intake against set limits.

Highlights
  • Offline food logging
  • Nickel and cobalt intake estimation
  • Customizable food database
  • Barcode scanning
  • Recipe building
  • Daily trend calendar
  • Journaling for mood and notes
Features
Read full description

Trace Elements is a private, offline food diary for people on a restricted diet — a low-nickel diet for Systemic Nickel Allergy Syndrome (SNAS) or nickel-sensitive dermatitis, or a low-cobalt diet. Log what you eat and the app estimates how much nickel (or cobalt) each meal and each day adds up to, against a daily limit you set. It works fully offline, has no account, no ads, and no tracking. Your data stays on your iPhone. FAST DAILY LOGGING • Add foods to Breakfast, Lunch, Dinner, and Snacks • Enter amounts in grams or common serving sizes • A progress ring shows your running daily total at a glance • Copy a meal forward from yesterday with one tap • Save favorite meals and re-add them in seconds A FOOD DATABASE THAT GROWS WITH YOU • Hundreds of foods with reference values from the Rebelytics low-nickel and low-cobalt diet datasets • Edit or add your own values — they're saved and reused • Scan a packaged product's barcode to pull in its ingredient list • Can't find a food? Look it up in the USDA FoodData Central database, or use the in-app web lookup. These optional lookups are the only times the app goes online. RECIPES • Build compound foods (a sandwich, a stew, a takeout order) from ingredients and the app totals them automatically • Save them as reusable recipes SEE YOUR TRENDS • A calendar colors each day Good, Caution, or Over against thresholds you choose • Keep a per-day journal with mood and notes PRIVATE BY DESIGN • No sign-in, no user accounts • No advertising, analytics, or crash-reporting SDKs • Camera images from barcode and menu scans are read on the device and never stored or uploaded TRACE ELEMENTS PRO (optional subscription) • Track cobalt alongside nickel, with its own daily limit and dataset • Scan a restaurant menu: photograph it, pick your dish, and its ingredients are looked up — on supported iPhones, your phone's own on-device AI can estimate ingredients and portions without anything leaving the device • Export PDF reports to share with your clinician • Back up and restore everything: to a file, or to your own iCloud • $1.99 per month or $12.99 per year. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the end of the current period. Manage or cancel subscriptions in your App Store account settings after purchase. • Prefer a one-time thank-you? A tip jar is there too. Core tracking stays free. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://traceelements.app/privacy A NOTE FROM THE DEVELOPER I built this app for my wife after she was diagnosed with a nickel sensitivity. Managing it day to day was harder than it needed to be, and this was the only way I knew how to help. If it makes your days a little easier too, it's done its job. Please note: Trace Elements is a self-tracking aid. Reference values are estimates and vary by source, growing region, and preparation. It is not a medical device and does not provide medical or dietary advice. Always consult a qualified healthcare professional about your diet and any food sensitivities.

Screenshots

Green & Brown Noise Sleep4 screens
Trace Elements4 screens

Verdict

The call

The clearest difference is review sentiment: Trace Elements at 100% against Green & Brown Noise Sleep's 50%. Trace Elements also leads on ads (none vs shown) and rating (5.0 vs 4.7). Green & Brown Noise Sleep's advantage is ratings volume (30 vs 1). On price, in-app purchases, monetization model and device support 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. Green & Brown Noise Sleep sells 6 in-app purchases, starting at $0.99 per month and Trace Elements sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Trace Elements holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Green & Brown Noise Sleep has 30 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Green & Brown Noise Sleep's written reviews are positive against 100% of Trace Elements's.

UpkeepUpdate frequency

Green & Brown Noise Sleep ships an update every 3 weeks, Trace Elements weekly. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

Scorecard5 real differences · 5 level
Green & Brown Noise Sleep versus Trace Elements: the parameters behind the verdict, then further details
ParameterGreen & Brown Noise SleepTrace Elements
PriceFreeFree
Rating4.7 (30 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings30 — better1
Update frequencyEvery 3 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.5
Further details — not scored
Size180 MB69 MB
Age rating9+4+
DeveloperXIAOLEI LICode Cowboys

Customer experience

Green & Brown Noise Sleep

All ratings30 ratings
Positive93.3%
Neutral6.7%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Trace Elements

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

In-app purchases

6 purchases

Green & Brown Noise Sleep

Subscriptions5
  • Full Version for One Month$0.991 Month
  • Full Version for One Year$4.991 Year
  • Premium Month Subscription$9.991 Month
Show 2 more
  • Premium Plus for Newcomer$14.991 Year
  • Premium Plus Year Subscription$29.991 Year
One-time1
  • Full Version for Lifetime$14.99
5 purchases

Trace Elements

Subscriptions2
  • Trace Elements Pro$1.991 Month
  • Trace Elements Pro$12.991 Year
One-time3
  • A coffee$1.99
  • A big coffee$4.99
  • Coffee for a week$9.99

Questions

Is Green & Brown Noise Sleep free?
Green & Brown Noise Sleep is free to download, with in-app purchases available.
Is Trace Elements free?
Trace Elements is free to download, with in-app purchases available.
Which has better reviews, Green & Brown Noise Sleep or Trace Elements?
Trace Elements is rated higher. Green & Brown Noise Sleep averages 4.7 out of 5 from 30 ratings, while Trace Elements averages 5.0 from 1 ratings.
Do Green & Brown Noise Sleep or Trace Elements have ads?
Green & Brown Noise Sleep shows ads; Trace Elements does not.
Which is updated more often, Green & Brown Noise Sleep or Trace Elements?
Green & Brown Noise Sleep ships an update every 3 weeks, and Trace Elements weekly. Most recently, Green & Brown Noise Sleep was updated on October 11, 2026 and Trace Elements on October 8, 2026.

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