# BLDR BK vs CBT Thought Diary App

The clearest difference is in-app purchases: BLDR BK at none against CBT Thought Diary App's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CBT Thought Diary App sells 2 in-app purchases, starting at $29.99 per year. BLDR BK asks for nothing beyond the download.

BLDR BK ships an update every 4 months, CBT Thought Diary App every 2 months. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | BLDR BK | CBT Thought Diary App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (11 ratings)](https://appshunter.io/ios/app/cbt-thought-diary-app/id6478697575/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Freemium |
| Size | 1 MB | 10 MB |
| Requires iOS | **16.1** | 16.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jose Miguel Filipe Antunes](https://appshunter.io/developer/1654197356) | [Aly Bairamov](https://appshunter.io/developer/1156046797) |

## What reviewers say

### BLDR BK

[App page](https://appshunter.io/ios/app/bldr-bk/id6444367444)

**Features:** macOS Compatibility

**In-app purchases:** none


### CBT Thought Diary App

[App page](https://appshunter.io/ios/app/cbt-thought-diary-app/id6478697575)

This app helps you track and transform your thoughts and emotions using the ABC model of Cognitive Behavioral Therapy. Log your experiences, gain insights into patterns, and challenge negativity for improved mental well-being. Securely store your data and export progress for personal review or sharing with professionals.

**Highlights:** ABC model thought logging, Historical emotional insights, PDF progress export, Privacy-focused data storage, Positive thinking guidance

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CBT Premium Yearly | $29.99 | per year |
| CBT Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is BLDR BK free?

BLDR BK is free to download, with no in-app purchases.

### Is CBT Thought Diary App free?

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

### Do BLDR BK or CBT Thought Diary App have ads?

Neither BLDR BK nor CBT Thought Diary App shows ads.

### Which is updated more often, BLDR BK or CBT Thought Diary App?

BLDR BK ships an update every 4 months, and CBT Thought Diary App every 2 months. Most recently, BLDR BK was updated on October 8, 2026 and CBT Thought Diary App on October 6, 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.*