# Second Brain vs SecondBrain

The clearest difference is rating: SecondBrain at 5.0 against Second Brain's 4.0. SecondBrain also leads on update cadence (every 3 days vs weekly) and device support (3 vs 1). Second Brain's advantage is ads (none vs shown). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. Second Brain sells 2 in-app purchases, starting at $4.99 per month and SecondBrain sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

SecondBrain holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Second Brain ships an update weekly, SecondBrain every 3 days. Both last shipped on September 24, 2026.

## The numbers

| Metric | Second Brain | SecondBrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/second-brain-know-yourself/id6760254340/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/secondbrain-ai-memory/id6762130376/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 12 MB | 72 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Liwei Xie](https://appshunter.io/developer/1106616046) | [Federico Cesarini](https://appshunter.io/developer/1888767256) |

## What reviewers say

### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-know-yourself/id6760254340)

This AI-powered journal captures your thoughts via voice or text, automatically organizing and connecting them. It helps you recall memories, discover patterns, and reflect on your growth.

**Highlights:** AI classification, tagging, and summarization, Semantic search by meaning, Three-layer memory system, People cards for relationship tracking, Weekly AI reflections, Voice input with transcription, Data export (JSON + Markdown)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Second Brain Pro | $4.99 | per month |
| Second Brain Pro | $39.99 | per year |


### SecondBrain

[App page](https://appshunter.io/ios/app/secondbrain-ai-memory/id6762130376)

This app automatically transcribes, titles, and files your spoken thoughts, creating a self-organizing note system. It can convert voice notes into calendar events, provide daily summaries, and allow you to chat with your saved information.

**Highlights:** Automatic transcription and titling, AI-powered self-organizing notes, Voice to calendar event creation, Daily morning briefing summaries, Chat with your notes for answers, 3D brain graph visualization, Full-text search, Cross-app sharing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SecondBrain Pro | $8.99 | per month |
| SecondBrain Pro Yearly | $34.99 | per year |
| SecondBrain Pro Yearly | $44.99 | per year |


## Frequently asked questions

### Is Second Brain free?

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

### Is SecondBrain free?

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

### Which has better reviews, Second Brain or SecondBrain?

SecondBrain is rated higher. Second Brain averages 4.0 out of 5 from 1 ratings, while SecondBrain averages 5.0 from 3 ratings.

### Do Second Brain or SecondBrain have ads?

SecondBrain shows ads; Second Brain does not.

### Which is updated more often, Second Brain or SecondBrain?

Second Brain ships an update weekly, and SecondBrain every 3 days. Most recently, Second Brain was updated on September 24, 2026 and SecondBrain on September 24, 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.*