Comparison

CalmAnchor vs ZEN BUBBLE

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

Head to head
About

CalmAnchor

This app provides immediate support during panic attacks with a one-tap SOS feature. It offers guided breathing exercises, grounding techniques, and mood tracking to help manage anxiety and build lasting calm over time. Premium features include personalized plans and detailed trend analysis.

Highlights
  • Panic SOS from Lock Screen widget
  • Guided breathing and grounding techniques
  • Mood tracking and intensity rating
  • 30-day personalized anxiety plan
  • Gamified progress with badges and ranks
  • Apple Watch integration with haptic feedback
  • Optional Apple Health integration
Features
Read full description

Having a panic attack? Tap once. CalmAnchor opens straight into Panic SOS from a Lock Screen widget: 5-4-3-2-1 grounding, then six slow guided breaths with a live countdown in your Dynamic Island. Rate how intense it feels before and after, and watch it come down. Then it helps you need it less. Check in on your mood, follow a 30-day plan built around your triggers, and earn your way up the ranks as calm becomes a habit. PANIC SOS — FREE • One tap from your Lock Screen widget into a guided session • 5-4-3-2-1 grounding to bring you back to the present • Six slow breaths (in 4, hold 4, out 4) with a Dynamic Island countdown • Calming affirmations and a before-and-after intensity check • A coping library: box breathing, 4-7-8, body scan, thought records and more • The 988 Lifeline and Crisis Text Line, one tap away HELP FROM ANYWHERE — NEW IN 2.0 • Apple Watch app: Panic SOS on your wrist, with breaths you can feel • Start Panic SOS from the Action Button, Control Center, Siri or Spotlight • Haptic breathing: feel each breath with your eyes closed • Optional voice guidance through grounding and breathing • Optional Apple Health: mindful minutes, mood as State of Mind, and your heart rate before and after EARN YOUR CALM RANK • 50 badges to unlock, from First Anchor to secret moments like Night Watch • An Anchor Pass with 20 ranks, from First Breath to Zen Anchor, that turns from Sea Glass to Pearl as you climb • Celebrations for streaks, badges and new ranks, with cards you can share • Daily quests, plus a grace day so one missed day doesn't erase your streak • Your week in calm: a story recap of your sessions, moods and wins LASTING CALM — PREMIUM • A personalized 30-day plan built around your triggers • A guided journal with gratitude, affirmations and free writing • Mood and anxiety trends over 7 days, 30 days or all time PRIVATE BY DESIGN Your journal, moods and sessions stay on your iPhone, unless you choose to save sessions and moods to Apple Health. No account, no ads. CalmAnchor is a self-help and wellness tool, not a substitute for professional medical advice, diagnosis or treatment. If you're in crisis, call or text 988 or your local emergency number. SUBSCRIPTION & LEGAL CalmAnchor offers auto-renewable subscriptions (weekly, monthly, yearly) and an optional one-time Lifetime purchase. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period; manage or cancel in your Apple Account settings. Terms of Use (EULA): https://gwlabs.app/terms Privacy Policy: https://gwlabs.app/privacy

About

ZEN BUBBLE

Escape overthinking with a serene lakeside world. Breathe into your microphone to release worries as bubbles drift away. Track your progress and observe a dynamic environment that reflects your local time and seasons.

Highlights
  • Guided breathing exercises
  • Thought release via bubbles
  • Dynamic seasonal lake environment
  • Private journal for released thoughts
  • Progress tracking
  • Field guide for creatures and plants
Read full description

Work is over, but your mind is still at your desk. Thoughts pile up and you can’t quite put them down. ZEN BUBBLE is a small lakeside world you can step into whenever that happens. Exhale slowly toward the microphone, and bubbles rise and drift out over the water. There is nothing to sort out, nothing to fix, and no mind to empty. Just breathe out and watch. WHEN TO OPEN ZEN BUBBLE - You’ve been overthinking and your head feels worn out - Work is over, but your mind is still at your desk - The same worry keeps coming back - Your head is still loud after being around people - Anxiety has made your breathing feel shallow - You’re tired, but your thoughts are keeping you awake A LAKE THAT CHANGES WITH YOU The lake follows your local time, season, and weather. If it’s raining where you are, it rains there too. Snow, full moons, and cherry blossoms arrive here in sync with the real world. A cherry tree grows on the days you take time to breathe. Songbirds, fireflies, foxes, and other seasonal visitors appear throughout the year. You can keep track of all 30 creatures and 6 plants in your field guide. LET IT OUT If something is stuck in your head, tap the ring and say it out loud. Your words float away inside bubbles and disappear when they pop. A copy stays in your private journal. A RECORD See the minutes you’ve breathed, the bubbles you’ve made, and the thoughts you’ve released. Privacy Policy: https://legal.skcreation.app/zenbubble/en/privacy Terms of Use (EULA): https://legal.skcreation.app/zenbubble/en/terms

Screenshots

CalmAnchor4 screens
ZEN BUBBLE4 screens

Verdict

The call

CalmAnchor and ZEN BUBBLE are too close to call on the numbers: across 7 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. CalmAnchor sells 4 in-app purchases, starting at $4.99 per 7 days and ZEN BUBBLE sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CalmAnchor ships an update every 2 weeks, ZEN BUBBLE weekly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
CalmAnchor versus ZEN BUBBLE: the parameters behind the verdict, then further details
ParameterCalmAnchorZEN BUBBLE
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size82 MB66 MB
Age rating4+4+
DeveloperGW Capital Partners LLCKeisuke Inazawa

Customer experience

CalmAnchor

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ZEN BUBBLE

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

CalmAnchor

Subscriptions3
  • Weekly$4.997 Days
  • Monthly3 Days trial$9.991 Month
  • Yearly3 Days trial$49.991 Year
One-time1
  • Lifetime$79.99
2 purchases

ZEN BUBBLE

Subscriptions2
  • Premium (Monthly)$3.991 Month
  • Premium (Annual)7 Days trial$39.991 Year

Questions

Is CalmAnchor free?
CalmAnchor is free to download, with in-app purchases available.
Is ZEN BUBBLE free?
ZEN BUBBLE is free to download, with in-app purchases available.
Do CalmAnchor or ZEN BUBBLE have ads?
Neither CalmAnchor nor ZEN BUBBLE shows ads.
Which is updated more often, CalmAnchor or ZEN BUBBLE?
CalmAnchor ships an update every 2 weeks, and ZEN BUBBLE weekly. Most recently, CalmAnchor was updated on November 4, 2026 and ZEN BUBBLE on October 31, 2026.

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