# DEEP POOL vs 트리나 treena

The clearest difference is update cadence: DEEP POOL at every 2 months against 트리나 treena's every 8 months. 트리나 treena's advantage is review sentiment (100% vs 78%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DEEP POOL ships an update every 2 months, 트리나 treena every 8 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | DEEP POOL | 트리나 treena |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/deep-pool/id1526639913/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 78.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free | Free |
| Size | 7 MB | 25 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NOTEGG Corp.](https://appshunter.io/developer/1090697757) | [Songa Kim](https://appshunter.io/developer/1613519755) |

## What reviewers say

### DEEP POOL

[App page](https://appshunter.io/ios/app/deep-pool/id1526639913)

This app provides a private space to anonymously share your thoughts and feelings. Users can express themselves without judgment, and receive empathetic prayers of support from others. It's designed as a healing tool for those feeling frustrated or needing to vent.

**Highlights:** Anonymous sharing of thoughts, Private emotional expression, Receive empathetic prayers, Daily content deletion, Ad-free experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 트리나 treena

[App page](https://appshunter.io/ios/app/treena/id1613522990)

This app helps you express and resolve your emotions by writing a diary. Watch your inner self grow into a tree as you write, visualizing your progress and finding a sense of accomplishment.

**Highlights:** Emotional journaling, Self-expression, Emotion resolution, Visualized growth, Sense of accomplishment

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DEEP POOL free?

DEEP POOL is free to download, with no in-app purchases.

### Is 트리나 treena free?

트리나 treena is free to download, with no in-app purchases.

### Do DEEP POOL or 트리나 treena have ads?

Neither DEEP POOL nor 트리나 treena shows ads.

### Which is updated more often, DEEP POOL or 트리나 treena?

DEEP POOL ships an update every 2 months, and 트리나 treena every 8 months. Most recently, DEEP POOL was updated on November 3, 2026 and 트리나 treena on November 8, 2026.

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