# Second Brain vs Einfall

The clearest difference is update cadence: Einfall at every 5 days against Second Brain's every 3 months. Second Brain's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Second Brain sells 1 one-off in-app purchase and Einfall sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Second Brain ships an update every 3 months, Einfall every 5 days. The most recent releases landed on October 1, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Second Brain | Einfall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/einfall-quick-capture/id6781802406/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 8 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Selahattin Bozat](https://appshunter.io/developer/1895293163) | [JEAN PIERRE MARAIS](https://appshunter.io/developer/6781802408) |

## What reviewers say

### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-notes-and-knowledge/id6775839727)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Second Brain Premium | $9.99 | one-time |


### Einfall

[App page](https://appshunter.io/ios/app/einfall-quick-capture/id6781802406)

Quickly capture fleeting ideas and thoughts from any device. Organize them in a simple, searchable stream and take action when you're ready. Your thoughts are private and sync securely via iCloud.

**Highlights:** Instant capture from any device, Simple, searchable plain text stream, Actionable thoughts (edit, export, integrate), Optional local AI agent, Private, no account required, iCloud sync across devices, Face ID/Touch ID lock

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Everything | $29.99 | one-time |


## Frequently asked questions

### Is Second Brain free?

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

### Is Einfall free?

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

### Do Second Brain or Einfall have ads?

Neither Second Brain nor Einfall shows ads.

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

Second Brain ships an update every 3 months, and Einfall every 5 days. Most recently, Second Brain was updated on October 1, 2026 and Einfall on September 25, 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.*