OpenResponses
Developer ToolsUtilities

OpenResponses

Gunnar Hostetler · released 12 Jan 2026 · Open in App Store ↗

Revenue 30d not estimated
Downloads 30d not estimated
Rating 5.00 1 reviews

No in-app products collected for this app.

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Description

OpenResponses is a native iPhone client for the OpenAI Responses API built for people who want full control, clear observability, and modern tool support. Bring your own API key, stream responses in real time, inspect every request, and use the latest OpenAI models in a fast SwiftUI interface.

Model Lineup

GPT-5.4, GPT-5.3, GPT-5.2, GPT-5.1, GPT-5, and GPT-5-mini

o3 and o4-mini reasoning models with configurable effort

GPT-4.1 family, GPT-4o, and gpt-image-1

What Makes It Different

Real-time streaming with activity feed, token usage, and Assistant Thinking traces

Request Inspector for payloads, tool calls, and raw Responses API details

Explore Demo so new users can try the interface before adding an API key

Prompt Library, advanced model controls, exports, and local conversation history

Message quick actions plus direct camera, photo, file, and document attachments

Tools Included

Web Search with live sources

Code Interpreter for Python, analysis, charts, and artifacts

Image Generation with gpt-image-1

File Search and vector store workflows

Computer Use preview with explicit approval steps

Direct Notion integration and Apple system tools when you choose to enable them

Built for Apple

Calendar, Contacts, and Reminders tools when you enable them

Permissions shown only when related features are used

SwiftUI experience with Dark Mode, Dynamic Type, and VoiceOver support

Privacy

Your OpenAI API key is stored in the iOS Keychain

Before the first live AI request, the app shows an in-app OpenAI data sharing notice and requires explicit approval

No required account

Conversation history stays on device unless you choose to send or export it

AI output can be inaccurate or outdated. Verify important information before acting.

Requirements

iOS 17.0 or later

Your own OpenAI API key with active billing