# Inklin vs Second Brain

The clearest difference is in-app purchases: Inklin at none against Second Brain's 2. Second Brain's advantage is iOS requirement (18.0 vs 26.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Second Brain sells 2 in-app purchases, starting at $7.99 per 7 days. Inklin asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Inklin | Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Size | 4 MB | 55 MB |
| Requires iOS | 26.2 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mallard Foundries](https://appshunter.io/developer/1879922614) | [Terra Innovations](https://appshunter.io/developer/1789492814) |

## What reviewers say

### Inklin

[App page](https://appshunter.io/ios/app/inklin/id6759629439)

**Features:** macOS Compatibility

**In-app purchases:** none


### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-ai-assistant/id6792532203)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Monthly | $29.99 | per month |


## Frequently asked questions

### Is Inklin free?

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

### Is Second Brain free?

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

### Do Inklin or Second Brain have ads?

Neither Inklin nor Second Brain shows ads.

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

Inklin ships an update every 5 days, and Second Brain every 5 days. Most recently, Inklin was updated on October 11, 2026 and Second Brain on October 15, 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.*