Comparison

Wind Down vs Calorie Tracker

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

Head to head
About

Wind Down

This app uses a pulsing light projected onto your ceiling to guide your breathing and help you fall asleep faster. It's designed to be used in a darkened room, with adjustable settings for breathing rate and color.

Highlights
  • Pulsing light projection
  • Adjustable breathing frequency
  • Sunset color lighting
  • Adjustable timer
  • Separate settings for men and women
Features
Read full description

zzZ is a calm, ambient breathing light for the end of the day. Free to try. No account. No notifications. Place your iPhone or iPad on the nightstand, follow the glow, and let your breath slow to the rhythm that research has linked to better sleep. THE METHOD Slow-paced breathing at around six cycles per minute — a rate known as "resonance breathing" — is associated in published studies with reduced sleep-onset latency, fewer nighttime awakenings, and greater parasympathetic (rest-and-digest) activity (Laborde et al., 2022; Hamasaki, 2020). A longer exhale than inhale is linked to increased vagal tone and heart-rate variability (Laborde et al., 2024; Jerath et al., 2006). zzZ starts at a comfortable pace (around ten breaths per minute) and gently eases you down to roughly six over two to three minutes — the same descent pattern used in heart-rate-variability biofeedback protocols. You simply follow the breathing orb, or close your eyes and feel the gentle haptic swell on each inhale and exhale. DESIGNED FOR THE NIGHTSTAND - Eyes-closed mode — a gentle haptic pulse marks every inhale and exhale, so you can put the phone face-down and let the rhythm do the rest - Full-screen breath orb — no menus, no chrome, no ads - Melatonin-friendly Red Night theme (plus Warm Amber, Moonglow, Aurora) - Optional ambient bed (pink noise, brown noise, soft rain, or silent) - Optional breath chime cues - Works beautifully on iPad in landscape — a true bedside breathing lamp PRESETS - Sleep Descent — guided 10 → 6 BPM wind-down (default) - Deep Resonance — steady 5.5 BPM, vagal activation - 4-7-8 — the Weil technique - Box — even four-count for calm focus PRIVACY BY DESIGN No third-party tracking. No third-party analytics. No ads. No account required. Completed sessions can optionally be written to Apple Health as Mindful Minutes — all other data stays on your device. ACCESSIBILITY Supports Dynamic Type, VoiceOver labels on controls, and Reduce Motion. WORKS WITH - Apple Health — Mindful Minutes - Siri & Shortcuts — "Hey Siri, start wind-down" - Sleep Focus — run zzZ automatically as part of your wind-down routine SELECTED REFERENCES Laborde S. et al. (2022) Psychophysiological effects of slow-paced breathing at six cycles per minute. Psychophysiology. Hamasaki H. (2020) Effects of diaphragmatic breathing on health: a narrative review. Medicines. Jerath R. et al. (2006) Physiology of long pranayamic breathing. Medical Hypotheses. Lehrer P. & Gevirtz R. (2014) Heart rate variability biofeedback. Frontiers in Psychology. zzZ is a wellness tool and does not diagnose, treat, or cure any medical condition. If you suffer from chronic insomnia, please consult a sleep specialist. SUBSCRIPTION DETAILS Wind Down Pro is available as an auto-renewing monthly subscription or a one-time Lifetime unlock. The monthly plan includes a 7-day free trial; payment is charged to your Apple ID account at the end of the trial and renews monthly unless cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. The Lifetime unlock is a single payment with no renewal. Manage or cancel anytime in Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.actnow-gmbh.de/apps/zzz/privacy Made in Germany by ActNow GmbH.

About

Calorie Tracker

This app helps you track your calorie intake by answering questions for a personalized plan and scanning food photos for nutritional breakdowns. It aims to make calorie counting simple and enjoyable.

Highlights
  • Personalized calorie plans
  • Food photo scanning
  • Nutritional breakdown
  • Calorie deficit tracking
  • Minimalistic design
Features
Read full description

HOW TO USE CALTROPIC: 1) Answer questions to get a personalized plan 2) Take a photo of your food* 3) Get your nutritional breakdown 4) See how many calories are left and enjoy your day! Unlike many other apps, caltropics makes calorie counting enjoyable and frictionless. Uncomplicated, minimalistic, easy to use and scientifically proven. NOTE: We do not offer medical advice. Any and all recommendations should be viewed as suggestions, please consult with a professional and do your own research before trying a new calorie and nutrition plan. *FOOD SCANNING ANALYSIS RESULTS REQUIRE A SUBSCRIPTION. TERMS: https://www.apple.com/legal/internet-services/itunes/dev/stdeula PRIVACY POLICY: https://sites.google.com/view/fruityhabits-privacypolicy

Screenshots

Wind Down4 screens
Calorie Tracker4 screens

Verdict

The call

The clearest difference is review sentiment: Calorie Tracker at 86% against Wind Down's 25%. Calorie Tracker also leads on price (Free vs $8.99). Wind Down's advantage is device support (3 vs 1) and iOS requirement (17.0 vs 26). On update cadence, ads and in-app purchases 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

Calorie Tracker is free to download; Wind Down costs $8.99 up front. Wind Down sells 2 in-app purchases, starting at $2.99 per month and Calorie Tracker sells 10 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Wind Down ships an update every 3 weeks, Calorie Tracker every 11 days. The most recent releases landed on November 6, 2026 and November 12, 2026 respectively.

Scorecard5 real differences · 5 level
Wind Down versus Calorie Tracker: the parameters behind the verdict, then further details
ParameterWind DownCalorie Tracker
Price$8.99Free — better
Rating—5.0 (5 ratings) — better
Positive reviews25.0% of reviews85.7% of reviews — better
Number of ratings—5 — better
Update frequencyEvery 3 weeksEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.0 — better26
Further details — not scored
Size5 MB89 MB
Age rating17+4+
DeveloperActnow GmbHCAN DELIL BOZKURT

Customer experience

Wind Down

Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Calorie Tracker

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews14 reviews
Positive85.7%
Neutral7.1%
Negative7.1%

In-app purchases

2 purchases

Wind Down

Subscriptions1
  • Wind Down Monthly7 Days trial$2.991 Month
One-time1
  • zzz Pro$6.99
10 purchases

Calorie Tracker

Subscriptions10
  • Weekly Premium$1.997 Days
  • Monthly Sale$12.991 Month
  • Yearly Trial$14.991 Year
Show 7 more
  • Yearly Sale$19.991 Year
  • Yearly Mid Sale$24.991 Year
  • Yearly Sale Trial$39.991 Year
  • Three Months Trial7 Days trial$39.993 Months
  • Yearly Mid$49.991 Year
  • Three Months Premium7 Days trial$59.993 Months
  • Yearly Premium7 Days trial$71.991 Year

Questions

Is Wind Down free?
Wind Down costs $8.99, and also offers in-app purchases.
Is Calorie Tracker free?
Calorie Tracker is free to download, with in-app purchases available.
Do Wind Down or Calorie Tracker have ads?
Neither Wind Down nor Calorie Tracker shows ads.
Which is updated more often, Wind Down or Calorie Tracker?
Wind Down ships an update every 3 weeks, and Calorie Tracker every 11 days. Most recently, Wind Down was updated on November 6, 2026 and Calorie Tracker on November 12, 2026.

Other comparisons