Comparison

Willow vs ZenDepth

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

Head to head
About

Willow

This AI-powered companion offers a safe space for daily self-reflection and mental wellness. Engage in conversations, track your mood, and gain personalized insights into your emotional patterns. It helps you understand yourself better through guided reflection and AI-driven support.

Highlights
  • AI-powered conversations
  • Daily self-reflection
  • Mood and mental pattern tracking
  • Personalized insights
  • Private and secure data
Features
Read full description

Willow is your personal wellness companion—always ready to chat, listen, and help you reflect. Whether you’re feeling amazing or overwhelmed, Willow is here to guide you with AI-powered conversations and personalized insights. Designed for daily self-reflection, it makes tracking your mood and mental patterns effortless. FEATURES • Chat with Willow: Start a conversation any time—vent, reflect, or explore your thoughts in a safe, non-judgmental space. • Insightful Trends: Visualize your emotional journey and uncover patterns across time. • Session History: Revisit past chats and feelings detected to see how your mindset evolves. • Private & Secure: Your data stays private—Willow never shares or sells your personal information. Why Willow? We believe mental wellness should be approachable, engaging, and available whenever you need it. Willow combines modern technology with real-world therapeutic concepts to help you better understand yourself—one conversation at a time. Start your journey toward better mental wellness today. Subscription Details: • Free Trial for first 7 days • Subscription required post free trial • Subscription options: $7.99/month or $79.99/year • Subscriptions Auto-renew monthly or yearly depending on the program, until canceled • Payment charged to iTunes account • Cancel anytime in iPhone Settings Terms of Use: https://pulse-app.ai/terms-of-service

About

ZenDepth

Enhance your breath-holding capabilities with personalized training plans and guided exercises. Track progress, unlock techniques, and compete with friends in a visually immersive underwater environment.

Highlights
  • Adaptive training plans (CO2 & O2 tables)
  • Guided stretching exercises
  • 20+ breath-hold techniques
  • Gamified milestones and badges
  • Social leaderboards for friends
  • Immersive underwater aesthetic
Features
Read full description

Master your breath. Extend your limits. ZenDepth is a personalized apnea training app built for freedivers, spearfishers, surfers, and meditators who want to go further underwater. Set your baseline. Get a 12-session adaptive plan calibrated to your personal best. Track your progress through phases as your hold times grow. SMART TRAINING PLANS CO2 tables build your tolerance to high carbon dioxide. O2 tables train your body to use oxygen more efficiently. Every plan adapts to your current level and improves with you. GUIDED STRETCHING Expand your lung capacity and thoracic mobility with five science-backed stretching exercises — guided in real time with live cues. UNLOCK TECHNIQUES Master 20 breath-hold techniques progressively as you train — from Recovery Breathing to advanced Breath Packing. GAMIFIED MILESTONES Earn badges, conquer phases, and watch your guided streak grow. Training feels like progress, not a grind. TRAIN WITH FRIENDS Add friends by username and see how your personal bests stack up. A private leaderboard built for the freediving community. BEAUTIFUL BY DESIGN An underwater aesthetic that makes every session feel like a dive. Animated backgrounds, glass-morphic UI, and haptic feedback designed for focus and flow. ZenDepth is free to start. Unlock all training phases with a premium subscription after completing the first training phase. Terms of Use: https://zendepth.app/terms.html

Screenshots

Willow4 screens
ZenDepth4 screens

Verdict

The call

The clearest difference is iOS requirement: Willow at 14 against ZenDepth's 18.0. On price, rating, ratings volume and update cadence 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. Willow sells 3 in-app purchases, starting at $7.99 per month and ZenDepth sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Willow against 5.0 for ZenDepth. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

UpkeepUpdate frequency

Willow ships an update every 2 weeks, ZenDepth every 9 days. Both last shipped on October 24, 2026.

Scorecard1 real difference · 8 level
Willow versus ZenDepth: the parameters behind the verdict, then further details
ParameterWillowZenDepth
PriceFreeFree
Rating5.0 (4 ratings)5.0 (4 ratings)
Number of ratings44
Update frequencyEvery 2 weeksEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS14 — better18.0
Further details — not scored
Size64 MB11 MB
Age rating12+4+
DeveloperPulseAI LLCChristos Voutsaras

Customer experience

Willow

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ZenDepth

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Willow

Subscriptions3
  • Basic$7.991 Month
  • Premium$9.991 Month
  • PulseAI Yearly Subscription$79.991 Year
3 purchases

ZenDepth

Subscriptions2
  • Monthly$3.991 Month
  • Annually$19.991 Year
One-time1
  • Lifetime$49.99

Questions

Is Willow free?
Willow is free to download, with in-app purchases available.
Is ZenDepth free?
ZenDepth is free to download, with in-app purchases available.
Which has better reviews, Willow or ZenDepth?
Willow and ZenDepth are both rated 5.0 out of 5 on the App Store, from 4 and 4 ratings respectively.
Do Willow or ZenDepth have ads?
Neither Willow nor ZenDepth shows ads.
Which is updated more often, Willow or ZenDepth?
Willow ships an update every 2 weeks, and ZenDepth every 9 days. Most recently, Willow was updated on October 24, 2026 and ZenDepth on October 24, 2026.

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