# OpenCone vs Brain

The clearest difference is iOS requirement: Brain at 15.1 against OpenCone's 17.6. On price, ads, in-app purchases and monetization model there is nothing between them.

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

## The numbers

| Metric | OpenCone | Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opencone/id6744467668/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | Free |
| Size | 4 MB | 19 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gunnar Hostetler](https://appshunter.io/developer/1768599987) | [Yuliia Aliekseienko](https://appshunter.io/developer/1896230779) |

## What reviewers say

### OpenCone

[App page](https://appshunter.io/ios/app/opencone/id6744467668)

This app transforms your iPhone or iPad into a powerful RAG system. It allows you to import various document types for on-device extraction, embedding, and semantic search. Connect to your OpenAI and Pinecone accounts to build a private knowledge base for real-time, citation-backed answers.

**Highlights:** Multi-format document import (PDF, DOCX, TXT, code, etc.), On-device OCR for image text recognition, Semantic search with streaming answers, Real-time citations and metadata filtering, Support for GPT-5 and other advanced models, Secure credential management in Keychain

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

**In-app purchases:** none


### Brain

[App page](https://appshunter.io/ios/app/brain-project-manager/id6768291464)

Quickly capture and organize your project ideas with a structured approach. This app offers a clean interface for managing features, design, bugs, and notes, all stored locally for privacy and speed.

**Highlights:** Instant idea capture, Structured project categories (Features, Design, Bugs, Notes), On-device data storage, Customizable themes and accent colors, Haptic feedback and animations, Multi-language support

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenCone free?

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

### Is Brain free?

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

### Do OpenCone or Brain have ads?

Neither OpenCone nor Brain 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.*