IMPORTANT: Requires your own provider API keys or an OpenAI-compatible endpoint.
I built Cumbersome because consumer AI apps kept dumbing things down. Cumbersome is the manual transmission of AI apps: more complex, but with far greater control.
WHY I BUILT THIS
Consumer AI apps hide the controls I want and lock me into one provider.
I wanted direct API access, the freedom to pick and compare models, and to pay providers for what I use. This is the app I use every day, so I pay attention and try to get it right.
SUPPORTED PROVIDERS
- ChatGPT / OpenAI
- Claude / Anthropic
- Gemini / Google AI Studio
- OpenRouter multi-provider
- Vercel AI Gateway multi-provider
- Z.ai
- OpenAI-compatible custom endpoints, including Ollama, Azure, LM Studio, Groq, Together, and self-hosted backends
WHAT YOU GET
- A versatile API client. One app, every major provider and model.
- Total control. Pick your model, tune the parameters, switch providers mid-conversation.
- Compare models head to head. Stream multiple chats in parallel and let an AI judge pick the best.
- Bring your own tools. Local browser use, reasoning, web search, image generation.
- Rich, editable conversations. Markdown, LaTeX, code blocks, attachments, edit and export anything.
- Private by design. iCloud sync across devices. Nothing saved to our servers.
- Native and accessible on iPhone, iPad, and Mac.
MAJOR FEATURES ADDED IN 2026
Highlights only.
New in 1.74.0: Incognito chats. Search Project documents and conversations with Pro.
2026-09-21: Independent iPad chat windows.
2026-09-14: Read replies aloud as they arrive. Save and Restart after editing.
2026-08-29: Select multiple chats. Mac export/import of all chats.
2026-08-21: Background replies on iOS 26. Question Cards for clarification.
2026-08-18: Web Agent: a shared, interactive browser.
2026-08-06: Highlight passages and attach notes for your next reply.
2026-08-03: Local Python analysis, charts, Mermaid, Markdown export.
2026-07-31: Gemini video. Responses API for custom providers.
2026-07-28: Parallel browser and MCP tools.
2026-07-23: Mind/Meld combines three AI responses into one.
2026-07-18: Full Simplified Chinese support.
2026-07-12: Ghost/Write drafts your next turn.
2026-07-09: Remote MCP servers and tools.
2026-07-02: Chat themes and reading fonts (Serif, Rounded, Mono).
2026-06-28: Folder system message presets.
2026-06-24: Prompt caching, with usage across providers.
2026-06-17: Reusable system presets per conversation.
2026-06-16: Offload long system messages to iCloud Drive.
2026-06-15: Toggle custom API parameters.
2026-06-11: Compact chats to lower API costs.
2026-06-07: Run JavaScript and HTML.
2026-06-04: OpenRouter PDF parsing and search engine options.
2026-05-12: Quick Prompt shortcut and App Visibility on Mac.
2026-05-09: Folders to group and organize chats.
2026-05-03: Collapsible sidebar sections, synced across devices.
2026-04-22: Image generation with OpenAI and Gemini.
2026-04-18: Local browser search and browsing.
2026-04-11: Headless browser mode.
2026-04-03: Searchable model picker.
2026-03-15: Extended thinking and reasoning across providers.
2026-03-09: Auto-delete chats after a set number of days.
2026-02-28: Custom OpenAI-compatible providers.
2026-02-25: Only Search When Requested.
2026-02-24: Image paste, attachment previews, PDF thumbnails.
2026-02-21: Siri and Shortcuts.
2026-02-20: Vercel AI Gateway and model filters.
2026-02-06: Voice Control, Larger Text, higher contrast.
2026-01-11: VoiceOver, Dynamic Type, keyboard navigation.
2026-01-06: OpenRouter integration.
THE DEAL
Core features are free. An optional Cumbersome Pro subscription adds advanced Project tools and supports ongoing development. You pay providers directly for API usage.
I'm Peter, an indie developer in Reno, Nevada, out among the high desert tumbleweed. No VC money. No growth hacking. Just a tool I wanted to exist.
Fully customizable, complete, trhee types of system message, by message, by folder, and general… thanks friend. Many cached tokens
Espetacular
Rayran®
Sem dúvidas, o melhor app para inferências utilizando BYOK.
fix(project-files): accept valid filenames in Release builds
fix(mcp): explain elicitation compatibility and connection errors
fix(project-files): accept integer strings for pagination offsets
fix(project-files): preserve imported filenames when editing
Versão 1.76.1
Folding Sky Co, responsável pelo desenvolvimento do app, indicou que as práticas de privacidade do app podem incluir o gerenciamento de dados conforme descrito abaixo. Para obter mais informações, consulte a política de privacidade do app .
Dados vinculados a você
Os seguintes dados podem ser coletados e vinculados à sua identidade:
Compras
Dados não vinculados a você
Os seguintes dados podem ser coletados, mas não estão vinculados à sua identidade:
Informações de uso
Diagnóstico
As práticas de privacidade podem variar, por exemplo, conforme os recursos que você usa ou sua idade. Saiba Mais
O desenvolvedor indicou que este app é compatível com os seguintes recursos de acessibilidade. Saiba mais
Pouco frequente Linguagem obscena ou humor grosseiro Temas adultos ou sugestivos Temas de terror/medo Informações de tratamento médico Uso de ou referências a álcool, tabaco ou drogas Armas de fogo ou de outros tipos