Comparison

Calm SOS vs LeviaFlow

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

Head to head
About

Calm SOS

Features
Read full description

When Panic Hits, Tap This. Calm SOS is your emergency tool for panic attacks, anxiety spirals, anxiety relief, anger episodes, and emotional overwhelm. One tap gives you instant relief - no account, no setup, no waiting. Add the widget or Watch app for panic attack relief in a single tap, anytime. --- FOR PANIC ATTACKS, ANXIETY & MORE Most anxiety apps want you to meditate daily. This one works the moment you need it - for panic, anger, sadness, frustration, PTSD flashbacks, ADHD and nighttime anxiety. - Emergency panic button with calming audio & haptic feedback - Grounding techniques (5-4-3-2-1 sensory method, body scan) - Clinically-backed breathing exercises: box breathing, physiological sigh, 4-7-8, Wim Hof - Progressive muscle relaxation for physical anxiety symptoms - Somatic exercises for nervous system regulation - Distraction games to interrupt spiraling thoughts and break the anxiety loop --- NO BARRIERS TO RELIEF Open the app. Tap "Calm Me Now." Get relief in under 60 seconds. No long courses. No overwhelming options when you're already overwhelmed. --- FOREVER FREE CORE FEATURES - Emergency panic button & calming audio - Grounding & somatic exercises - Breathing techniques and breathwork (box breathing, physiological sigh & more) - Progressive muscle relaxation - Distraction games - Crisis hotlines for US, UK, Canada, Australia & most countries --- BUILT FOR THE HARD MOMENTS Whether it's a panic attack at work, 2am anxiety, nighttime PTSD, anger you can't shake, or insomnia that won't quit - Calm SOS meets you there. Track your triggers, build a personalized panic plan, and use the Night Protocol designed specifically for PTSD, trauma, insomnia and nighttime panic. Your nervous system doesn't need another meditation streak. It needs tools that work right now. --- PREMIUM: YOUR PERSONAL CALM COACH - AI-powered panic plan with pattern insights - Advanced breathing programs (Resonance, 4-7-8, Wim Hof) - Sleep routine for anxiety & insomnia - Daily check-in coach with mood tracking - Secure biometric journal with pattern analysis - Custom breathing program creator --- This app doesn't replace therapy - it bridges the gap between panic and peace. Use it in the parking lot before a meeting. At 2am when anxiety wakes you up. Anywhere you need to calm down fast. Download Calm SOS - the panic button in your pocket. FREE to use. Built for crisis. Works immediately. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

LeviaFlow

Features
Read full description

LeviaFlow is the smart way to do intermittent fasting — right on your wrist and phone. Whether you're new to fasting or a seasoned 16:8, 18:6, OMAD, or 72-hour pro, LeviaFlow gives you a clear, beautiful view of what's happening inside your body. Watch your progress through every metabolic stage, from digestion to deep autophagy, in real time. WHY LEVIAFLOW • Gorgeous live timer with 8 fasting stages • Real Apple Watch app, not just a companion • Works offline, syncs seamlessly between iPhone and Watch • Your data stays on your device. Zero tracking, zero ads • Support for fasts up to 7 days with safety checks FASTING STAGES Know exactly where you are in your fast: • 0 to 4h: Active Digestion • 4 to 8h: Insulin Dropping • 8 to 12h: Fat Burn Start • 12 to 16h: Early Ketosis • 16 to 20h: Fat Burning Zone • 20 to 24h: Autophagy Start • 24 to 48h: Deep Autophagy • 48h and beyond: Immune Reset Each stage comes with a smart notification so you never miss a milestone. PROTOCOLS FOR EVERYONE Choose what fits your lifestyle: • 16:8, classic beginner protocol • 18:6, Lean Gains • 20:4, Warrior Diet • OMAD, one meal a day • 24h, 36h, 48h, 72h • Custom, anything up to 168 hours (7 days) APPLE WATCH, DONE RIGHT Start and stop fasts directly from your wrist. Beautiful complications on your watch face. A native Watch app that works standalone, no iPhone required during your fast. STAY MOTIVATED • Track streaks across days, weeks, months • Unlock badges for every milestone • See your consistency on a beautiful calendar • Weekly bar charts show exactly how you're doing • Earn stars for exceeding your targets SMART NOTIFICATIONS • Stage milestone alerts (ketosis, fat burning, autophagy) • Progress updates at 50%, 75%, and 100% • Customizable hydration reminders • Quiet hours that respect your sleep • Eating window open and close reminders • Safety warnings for extended fasts PRIVACY FIRST LeviaFlow doesn't collect your data. Everything lives on your device. No accounts, no cloud tracking, no ads, no analytics. Just you and your fast. BUILT FOR THE APPLE ECOSYSTEM • Home Screen widgets for iPhone • Apple Watch complications and standalone app • Dark mode native • 5 languages: English, Romanian, Spanish, German, French • 5 beautiful color themes • iOS 17+ and watchOS 10+ HEALTH DISCLAIMER LeviaFlow is a tracking tool, not medical advice. Consult your doctor before starting any fasting protocol, especially extended fasts over 48 hours. Not recommended for people with diabetes, eating disorders, pregnant or breastfeeding women, or anyone with medical conditions without professional supervision. Start your fasting journey today. Your wrist is waiting.

Screenshots

Calm SOS4 screens
LeviaFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: LeviaFlow at none against Calm SOS's 3. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Calm SOS sells 3 in-app purchases, starting at $2.99 per 7 days. LeviaFlow asks for nothing beyond the download.

Scorecard1 real difference Ā· 5 level
Calm SOS versus LeviaFlow: the parameters behind the verdict, then further details
ParameterCalm SOSLeviaFlow
PriceFreeFree
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS17.617.0 — better
Further details — not scored
Size65 MB9 MB
Age rating4+4+
DeveloperTHIERRY VICTOR E DE BELDERDimensionalFlow SRL

In-app purchases

3 purchases

Calm SOS

Subscriptions3
  • Weekly$2.997 Days
  • Monthly$5.991 Month
  • Yearly7 Days trial$39.991 Year
None

LeviaFlow

No in-app purchases

Questions

Is Calm SOS free?
Calm SOS is free to download, with in-app purchases available.
Is LeviaFlow free?
LeviaFlow is free to download, with no in-app purchases.
Do Calm SOS or LeviaFlow have ads?
Neither Calm SOS nor LeviaFlow shows ads.

Other comparisons