# SecondBrain Pro vs OpenClient

The clearest difference is update cadence: OpenClient at every 4 days against SecondBrain Pro's every 2 months. SecondBrain Pro's advantage is iOS requirement (17.0 vs 26.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SecondBrain Pro sells 2 one-off in-app purchases and OpenClient sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

SecondBrain Pro ships an update every 2 months, OpenClient every 4 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | SecondBrain Pro | OpenClient |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (11 ratings)](https://appshunter.io/ios/app/openclient-private-ai-chat/id6761379499/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 10 MB | 244 MB |
| Requires iOS | **17.0** | 26.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Heinrich Krupp](https://appshunter.io/developer/1866842398) | [Arturo Carretero Calvo](https://appshunter.io/developer/1004967520) |

## What reviewers say

### SecondBrain Pro

[App page](https://appshunter.io/ios/app/secondbrain-pro/id6757423935)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $7.99 | one-time |
| SecondBrain PREMIUM | $17.99 | one-time |


### OpenClient

[App page](https://appshunter.io/ios/app/openclient-private-ai-chat/id6761379499)

This AI chat client connects to your self-hosted LLM servers, supporting various models and multimodal conversations. It offers features like real-time streaming, document attachment, and iCloud sync across devices. Enjoy a private chat experience without mandatory subscriptions.

**Highlights:** Connects to self-hosted LLM servers, Supports LiteLLM, Ollama, and OpenAI-compatible servers, Real-time streaming responses with Markdown/code rendering, Multimodal conversations with photo/document attachment, iCloud sync across Apple devices, Export conversations to JSON, Prompt template library

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Support | $2.99 | per month |
| Annual Support | $8.99 | per year |
| Small Coffee | $2.99 | one-time |
| Medium Coffee | $3.99 | one-time |
| Big Coffee | $8.99 | one-time |


## Frequently asked questions

### Is SecondBrain Pro free?

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

### Is OpenClient free?

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

### Do SecondBrain Pro or OpenClient have ads?

Neither SecondBrain Pro nor OpenClient shows ads.

### Which is updated more often, SecondBrain Pro or OpenClient?

SecondBrain Pro ships an update every 2 months, and OpenClient every 4 days. Most recently, SecondBrain Pro was updated on November 5, 2026 and OpenClient on November 5, 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.*