# Bluck vs CBT Journal AI Thought Diary

The clearest difference is device support: Bluck at 3 against CBT Journal AI Thought Diary's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Bluck sells 1 in-app purchase, starting at $1.99 per month and CBT Journal AI Thought Diary sells 6 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Bluck ships an update every 11 days, CBT Journal AI Thought Diary fortnightly. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Bluck | CBT Journal AI Thought Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/cbt-journal-ai-thought-diary/id6747863029/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Fortnightly |
| Monetization | — | Freemium |
| Size | 120 MB | 99 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Seungrae Cho](https://appshunter.io/developer/1620778100) | [playke](https://appshunter.io/developer/1803905569) |

## What reviewers say

### Bluck

[App page](https://appshunter.io/ios/app/bluck-challenge-tracker/id6740204211)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro plan | $1.99 | per month |


### CBT Journal AI Thought Diary

[App page](https://appshunter.io/ios/app/cbt-journal-ai-thought-diary/id6747863029)

Engage in warm conversations with an AI companion to organize your thoughts and build a journaling habit. Discover patterns in your thinking and track your mood with personalized insights and affirmations. This app offers a private space for self-reflection and personal growth.

**Highlights:** AI Reflection Chat, Mind Insight analysis, Mood Calendar tracker, Personalized Affirmations, Secure conversation storage, AI-generated insights

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mello Pro Pass - 1 month | $6.99 | per month |
| Melo Pro Pass - 6 month | $39.99 | per 6 months |
| Mind Planet Pro Pass - 12 month | $69.99 | per year |
| 1 Report + Deep Chat Pass | $2.99 | one-time |
| 4 Report + Deep Chat Passes | $5.99 | one-time |
| 13 Report + Deep Chat Passes | $17.99 | one-time |


## Frequently asked questions

### Is Bluck free?

Bluck is free to download, with in-app purchases available.

### Is CBT Journal AI Thought Diary free?

CBT Journal AI Thought Diary is free to download, with in-app purchases available.

### Do Bluck or CBT Journal AI Thought Diary have ads?

Neither Bluck nor CBT Journal AI Thought Diary shows ads.

### Which is updated more often, Bluck or CBT Journal AI Thought Diary?

Bluck ships an update every 11 days, and CBT Journal AI Thought Diary fortnightly. Most recently, Bluck was updated on October 28, 2026 and CBT Journal AI Thought Diary on October 30, 2026.

---

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