Comparison

Noodle vs SleepOwl

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

Head to head
About

Noodle

This app uses supported headphones to detect and alert you when you're slouching, helping you build better posture habits. It offers a free trial and gamified progress tracking with unlockable rewards.

Highlights
  • Slouch and hunch detection with supported headphones
  • Gentle posture alerts and notifications
  • Live Activity and widget for at-a-glance posture
  • Gamified progress tracking with ranks and rewards
  • Adjustable detection sensitivity
  • On-device motion processing
Features
Read full description

Noodle helps you catch slouching sooner and build a better sitting habit one reset at a time. Start a Slouch Watch, sit tall once to calibrate, and Noodle uses supported AirPods or Beats head-motion data to watch for forward hunching while you work, study, scroll, game, or take calls. When you start curling toward the screen, Noodle gives you a gentle cue to sit upright again. Want to try it first? Slouch Test Drive lets you sit tall, slouch on purpose, and watch Noodle catch the hunch before you subscribe. Trends shows how your posture habit is growing with live reads, manual check-ins, upright minutes, streaks, best days, and weekly or monthly scores. Your Noodle levels up too: earn ranks, unlock hats, held items, backgrounds, and shareable Noodle cards as you keep showing up. Features include: Live slouch and hunch detection with supported AirPods or Beats Gentle alerts, optional sounds, and background notifications Lock Screen and Dynamic Island Live Activities See today's posture at a glance with a home screen widget Slouch Test Drive, Trends, check-ins, streaks, and ranks Unlockable hats, items, backgrounds, and share cards Adjustable detection and movement sensitivity Motion processing on device Noodle is for everyday moments when your neck, back, and shoulders start drifting toward the screen. No complicated routines. Just a small nudge to sit tall again. Noodle Pro unlocks full Slouch Watch access, live hunch alerts, Trends, streaks, ranks, and style rewards. Subscription options may include Weekly Pro at $2.99/week and Annual Pro at $24.99/year. Prices may vary by country or region. If a free trial is offered, the trial length and renewal price are shown before purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your App Store account settings. Automatic tracking requires motion-capable AirPods or compatible Beats. Noodle is for general wellness and habit tracking, not medical advice, diagnosis, treatment, or physical therapy. Terms: https://spammusubitech.github.io/noodle-posture/terms/ Privacy Policy: https://spammusubitech.github.io/noodle-posture/privacy/

About

SleepOwl

Features
Read full description

SleepOwl turns your nightly sleep into something you actually care about. Track your sleep automatically, learn what makes your nights better, and grow a dream spirit that thrives every time you rest well. — WHAT YOU GET — Auto sleep tracking Pair with Apple Health and SleepOwl scores your night while you rest. No manual logging required. Detailed nightly insights See trends in REM, deep, and light sleep across days and weeks. Spot what's working and what isn't. Your own dream spirit A little companion that grows, levels up, and unlocks new looks the more consistently you sleep. Calm, never noisy. Calming sounds & meditations Drift off to rain, forest, and ocean soundscapes. Wind down with guided sleep meditations. Bedtime routines that stick Build a simple wind-down checklist and get gentle reminders. Small habits, big nights. Home screen widgets See your sleep score, streak, and your spirit's mood without opening the app. Privacy first Sleep data stays on your device or in your private account. We never sell your information. — SLEEPOWL PRO — Unlock the full library: • Every sound, scene & spirit colour • Deep insights and full history • Premium meditations and sleep stories Subscriptions auto-renew until cancelled. Manage or cancel anytime in your Apple ID Settings → Subscriptions. — TERMS & PRIVACY — Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://sleepowlapp.vercel.app/privacy

Screenshots

Noodle4 screens
SleepOwl4 screens

Verdict

The call

Noodle and SleepOwl are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Noodle sells 6 in-app purchases, starting at $2.99 per 7 days and SleepOwl sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Noodle ships an update every 5 days, SleepOwl weekly. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Noodle versus SleepOwl: the parameters behind the verdict, then further details
ParameterNoodleSleepOwl
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS26.426.2 — better
Further details — not scored
Size55 MB32 MB
Age rating+44+
DeveloperSpam Musubi TechnologiesEilef Fiska

In-app purchases

6 purchases

Noodle

Subscriptions6
  • Weekly$2.997 Days
  • Monthly$4.991 Month
  • Annual Extreme Discount$9.991 Year
Show 3 more
  • Annual Discount$19.991 Year
  • Annual$24.991 Year
  • Annual7 Days trial$24.991 Year
3 purchases

SleepOwl

Subscriptions3
  • SleepOwl Pro — Weekly Subscription$4.997 Days
  • Discount Yearly Pro3 Days trial$24.991 Year
  • SleepOwl Pro — Yearly Subscription7 Days trial$39.991 Year

Questions

Is Noodle free?
Noodle is free to download, with in-app purchases available.
Is SleepOwl free?
SleepOwl is free to download, with in-app purchases available.
Do Noodle or SleepOwl have ads?
Neither Noodle nor SleepOwl shows ads.
Which is updated more often, Noodle or SleepOwl?
Noodle ships an update every 5 days, and SleepOwl weekly. Most recently, Noodle was updated on October 31, 2026 and SleepOwl on October 25, 2026.

Other comparisons