# Second Brain vs Wisen

Second Brain and Wisen are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Second Brain | Wisen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/wisen-ai-notes-and-knowledge/id6760642726/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Monetization | — | Free |
| Size | 21 MB | 21 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Konstantin Akushev](https://appshunter.io/developer/1879211261) | [DARIA LENSKAJA](https://appshunter.io/developer/1885471826) |

## What reviewers say

### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-voice-notes/id6759515692)

**In-app purchases:** none


### Wisen

[App page](https://appshunter.io/ios/app/wisen-ai-notes-and-knowledge/id6760642726)

This app intelligently analyzes your notes to surface forgotten ideas, patterns, and unresolved questions. It offers daily digests, AI-powered chat for querying your notes, and visual knowledge mapping. Learn and retain information effectively through spaced repetition.

**Highlights:** AI-powered idea surfacing, Daily note digests, AI chat for note queries, Visual knowledge mapping, Spaced repetition learning, PDF, image, and voice import

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

**In-app purchases:** none


## Frequently asked questions

### Is Second Brain free?

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

### Is Wisen free?

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

### Do Second Brain or Wisen have ads?

Neither Second Brain nor Wisen shows ads.

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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.*