# OpenResponses vs Cognitive Physics

OpenResponses and Cognitive Physics are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence 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.

On the App Store both sit at effectively the same score — 5.0 for OpenResponses against 5.0 for Cognitive Physics. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

OpenResponses ships an update every 5 weeks, Cognitive Physics monthly. Both last shipped on October 31, 2026.

## The numbers

| Metric | OpenResponses | Cognitive Physics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/openresponses/id6757338355/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/cognitive-physics/id6758934425/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 21 MB | 142 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Gunnar Hostetler](https://appshunter.io/developer/1768599987) | [Joel Pena Munoz](https://appshunter.io/developer/1830887193) |

## What reviewers say

### OpenResponses

[App page](https://appshunter.io/ios/app/openresponses/id6757338355)

This native client provides advanced control and observability for AI models. It allows users to stream responses in real-time, inspect requests, and utilize various OpenAI models with a fast interface. Features include web search, code interpretation, and image generation.

**Highlights:** Real-time response streaming, Request inspector for API details, Prompt library and advanced model controls, Web search and code interpreter tools, Image generation capabilities, Direct Notion and Apple system tool integration

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

**In-app purchases:** none


### Cognitive Physics

[App page](https://appshunter.io/ios/app/cognitive-physics/id6758934425)

This app transforms your device into a truth-seeking instrument by training a personal AI to research alongside you. It guides you to ask better questions, verify claims, and build a permanent knowledge base from your imported materials. Designed for serious workflows, it focuses on observable learning processes rather than just providing answers.

**Highlights:** Train your own AI from scratch, Research like a scientist, Ask questions with citations, Build a permanent knowledge base, Multi-agent intelligence, Automatic paper generation

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenResponses free?

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

### Is Cognitive Physics free?

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

### Which has better reviews, OpenResponses or Cognitive Physics?

OpenResponses and Cognitive Physics are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do OpenResponses or Cognitive Physics have ads?

Neither OpenResponses nor Cognitive Physics shows ads.

### Which is updated more often, OpenResponses or Cognitive Physics?

OpenResponses ships an update every 5 weeks, and Cognitive Physics monthly. Most recently, OpenResponses was updated on October 31, 2026 and Cognitive Physics on October 31, 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.*