# Brain Trust Journal/Diary vs fourf

The clearest difference is update cadence: Brain Trust Journal/Diary at every 2 days against fourf's every 5 days. Brain Trust Journal/Diary also leads on iOS requirement (13.0 vs 17.4). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Brain Trust Journal/Diary ships an update every 2 days, fourf every 5 days. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Brain Trust Journal/Diary | fourf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/brain-trust-journaldiary/id6468538990/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | Free | Free |
| Size | 85 MB | 5 MB |
| Requires iOS | **13.0** | 17.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Brain Trust](https://appshunter.io/developer/1724876432) | [Salih Bora Ozturk](https://appshunter.io/developer/1729658833) |

## What reviewers say

### Brain Trust Journal/Diary

[App page](https://appshunter.io/ios/app/brain-trust-journaldiary/id6468538990)

Capture your life's journey through writing, photos, and ideas in a secure, centralized digital journal. Create a lasting personal archive for yourself and future generations to learn from.

**Highlights:** Writing prompts, Encrypted journals, Photos with captions, Personal insights, Helpful notifications, Minimalist design

**Features:** macOS Compatibility

**In-app purchases:** none


### fourf

[App page](https://appshunter.io/ios/app/fourf/id6503328526)

Capture thoughts, memories, and routines effortlessly with this journaling app. Its chat-like interface and social features allow for shared memories and easy organization across devices. Build a consistent habit with reminders and customizable appearance.

**Highlights:** Chat-like journaling interface, Mention friends for shared memories, Single-tap routine tracking, Effortless organization and search, Multi-device compatibility, Customizable appearance, Journaling habit reminders

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Brain Trust Journal/Diary free?

Brain Trust Journal/Diary is free to download, with no in-app purchases.

### Is fourf free?

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

### Do Brain Trust Journal/Diary or fourf have ads?

Neither Brain Trust Journal/Diary nor fourf shows ads.

### Which is updated more often, Brain Trust Journal/Diary or fourf?

Brain Trust Journal/Diary ships an update every 2 days, and fourf every 5 days. Most recently, Brain Trust Journal/Diary was updated on October 5, 2026 and fourf on October 15, 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.*