# Willow vs ZenDepth

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.

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.

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.

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

## The numbers

| Metric | Willow | ZenDepth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/willow-ai/id6473762326/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/zendepth/id6759767091/reviews) |
| Number of ratings | 4 | 4 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Freemium | Freemium |
| Size | 64 MB | 11 MB |
| Requires iOS | **14** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [PulseAI LLC](https://appshunter.io/developer/1719718368) | [Christos Voutsaras](https://appshunter.io/developer/1880557269) |

## What reviewers say

### Willow

[App page](https://appshunter.io/ios/app/willow-ai/id6473762326)

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:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $7.99 | per month |
| Premium | $9.99 | per month |
| PulseAI Yearly Subscription | $79.99 | per year |


### ZenDepth

[App page](https://appshunter.io/ios/app/zendepth/id6759767091)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annually | $19.99 | per year |
| Lifetime | $49.99 | one-time |


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*