# Polylog vs Brain Trust Journal/Diary

The clearest difference is review sentiment: Brain Trust Journal/Diary at 100% against Polylog's 0%. Brain Trust Journal/Diary also leads on rating (5.0 vs 2.0) and in-app purchases (none vs 10). Polylog's advantage is iOS requirement (11.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. Polylog sells 10 one-off in-app purchases. Brain Trust Journal/Diary asks for nothing beyond the download.

Brain Trust Journal/Diary holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Brain Trust Journal/Diary has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Polylog's written reviews are positive against 100% of Brain Trust Journal/Diary's.

Polylog ships an update fortnightly, Brain Trust Journal/Diary every 2 days. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Polylog | Brain Trust Journal/Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/polylog/id1622203191/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/brain-trust-journaldiary/id6468538990/reviews)** |
| Number of ratings | 1 | **6** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 85 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Thakornkrid Thanatharapokin](https://appshunter.io/developer/1622203193) | [Brain Trust](https://appshunter.io/developer/1724876432) |

## What reviewers say

### Polylog

[App page](https://appshunter.io/ios/app/polylog/id1622203191)

This app offers a digital journaling experience, allowing users to express themselves through text, images, and decorative elements. It fosters a community where users can share entries and find inspiration from others.

**Highlights:** Versatile text editor, Add images, stickers, and decorations, Extensive content library, Virtual store for customization, Engage with a global community, Comment on diary entries

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 PolyCoins | $0.99 | one-time |
| 100 PolyCoins | $2.99 | one-time |
| 225 PolyCoins | $5.99 | one-time |
| 525 PolyCoins | $13.99 | one-time |
| 844 PolyCoins | $21.99 | one-time |
| 1070 Polycoins | $26.99 | one-time |
| 1500 PolyCoins | $38.99 | one-time |
| 1850 PolyCoins | $46.99 | one-time |
| 2300 PolyCoins | $54.99 | one-time |
| 3000 PolyCoins | $69.99 | one-time |


### 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


## Frequently asked questions

### Is Polylog free?

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

### Is Brain Trust Journal/Diary free?

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

### Which has better reviews, Polylog or Brain Trust Journal/Diary?

Brain Trust Journal/Diary is rated higher. Polylog averages 2.0 out of 5 from 1 ratings, while Brain Trust Journal/Diary averages 5.0 from 6 ratings.

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

Polylog shows ads; Brain Trust Journal/Diary does not.

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

Polylog ships an update fortnightly, and Brain Trust Journal/Diary every 2 days. Most recently, Polylog was updated on September 29, 2026 and Brain Trust Journal/Diary on October 5, 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.*