# Maven vs Building a Second Brain

The clearest difference is rating: Building a Second Brain at 4.7 against Maven's 3.7. Building a Second Brain also leads on ads (none vs shown) and monetization model (free vs ad-supported). Maven's advantage is update cadence (every 3 weeks vs every 4 months) and iOS requirement (13.4 vs 16.4). On price, review sentiment, ratings volume 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.

Building a Second Brain holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 21 and 15 respectively. Written reviews point the same way: 44% of Maven's written reviews are positive against 50% of Building a Second Brain's.

Maven ships an update every 3 weeks, Building a Second Brain every 4 months. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Maven | Building a Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (21 ratings)](https://appshunter.io/ios/app/maven-the-serendipity-network/id6449607929/reviews) | **[4.7 (15 ratings)](https://appshunter.io/ios/app/building-a-second-brain/id6744942882/reviews)** |
| Number of ratings | **21** | 15 |
| Positive reviews | 44.4% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Ad-supported | **Free** |
| Size | 36 MB | 90 MB |
| Requires iOS | **13.4** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Mavn, Co.](https://appshunter.io/developer/1667912754) | [Forte Labs, LLC](https://appshunter.io/developer/1810064260) |

## What reviewers say

### Maven

[App page](https://appshunter.io/ios/app/maven-the-serendipity-network/id6449607929)

This social network focuses on connecting users through shared interests and genuine passions, rather than follower counts. It fosters meaningful interactions and amplifies ideas in an environment free from popularity contests.

**Highlights:** Connect through shared interests, Genuine passion-based connections, No follower count pressure, Amplify ideas, not popularity, Organic community building, Serendipitous connection discovery

**Features:** macOS Compatibility

**In-app purchases:** none


### Building a Second Brain

[App page](https://appshunter.io/ios/app/building-a-second-brain/id6744942882)

This app helps you manage information overload and achieve your goals through personal knowledge management. Connect with a community focused on productivity and digital organization for a more peaceful and purposeful life.

**Highlights:** PARA Method Mini-Course, Community Hub, Exclusive event invitations, Notetaking and creativity resources, Gateway to comprehensive courses

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

**In-app purchases:** none


## Frequently asked questions

### Is Maven free?

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

### Is Building a Second Brain free?

Building a Second Brain is free to download, with no in-app purchases.

### Which has better reviews, Maven or Building a Second Brain?

Building a Second Brain is rated higher. Maven averages 3.7 out of 5 from 21 ratings, while Building a Second Brain averages 4.7 from 15 ratings.

### Do Maven or Building a Second Brain have ads?

Maven shows ads; Building a Second Brain does not.

### Which is updated more often, Maven or Building a Second Brain?

Maven ships an update every 3 weeks, and Building a Second Brain every 4 months. Most recently, Maven was updated on October 7, 2026 and Building a Second Brain on October 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.*