Cumbersome: AI LLM API Client

Cumbersome: AI LLM API Client

API to ChatGPT, OpenAI, Ollama

70 ratings
27 reviews
Free

Details

  • Released
  • Updated
  • October 1, 2025
  • September 14, 2026

Features

Cumbersome: AI LLM API Client screenshot #1 for iPhone
Cumbersome: AI LLM API Client screenshot #2 for iPhone
Cumbersome: AI LLM API Client screenshot #3 for iPhone
Cumbersome: AI LLM API Client screenshot #4 for iPhone
Cumbersome: AI LLM API Client screenshot #5 for iPhone
Cumbersome: AI LLM API Client screenshot #6 for iPhone
Cumbersome: AI LLM API Client screenshot #7 for iPhone
Cumbersome: AI LLM API Client screenshot #8 for iPhone
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About

Connect directly to AI provider APIs for greater control over model selection and parameters. Compare different AI models, pay per use, and customize responses with advanced features. Supports multiple providers and custom endpoints.

Direct API connections
Multi-provider support
Full parameter control
Face/Off Mode with AI judge
Concurrent chats
Edit messages
Rich content support
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What's New in Cumbersome

1.72.0

September 14, 2026

feat(speech): read replies aloud during generation feat(chat): add remembered Save and Restart action feat(settings): analytics and synced opt-out fix(custom-providers): support HTTP .internal endpoints fix(chat): restore sidebar actions for newly synced conversations fix(shortcuts): enable OpenCode Go requests from Spotlight fix(attachments): enforce image upload limits in pixels fix(macos): enable image-only paste in the composer

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User reviews

Plagued with analytics: app-analytics-services.com gets hammered.

Constant Firebase analytics outbound connections.

Small developers have become the new surveillance dark horses, more dangerous than big tech, because we trusted them.

Shame on you.

Exactly what I wanted

Great job Peter. I’ve only been using the app for a couple of days, but it’s exactly what I wanted and was very easy to set up.

Not coding plan

Not z.ai coding plan

The Perfect Blend

This LLM client’s approach is the perfect blend of simplicity and complexity. For example, it’s simple and has a straightforward conversation history but an individual chat can easily be exported in full JSON for another agent to use if you need to take a conversation to the next level. Or how it uses iCloud for seamless sync. Peter rocks!
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Response from developer

Thanks very much for your kind words! 🤓

My favourite AI app in iOS

Let’s you use Ollama Cloud and Open Router so you can switch between models at will.

Web search supported well with both and the app has been improving really fast since I started using it.

Developer apps

FAQ

Does Cumbersome require API keys?

Yes, Cumbersome requires you to bring your own API keys from providers like OpenAI, Anthropic, Google AI Studio, or use an OpenAI-compatible endpoint. You pay the providers directly for API access.

How does Cumbersome compare to subscription AI apps?

Cumbersome offers direct API access, allowing you to choose specific models and pay per use, unlike subscription apps that may route requests to cheaper models and hide technical controls.

What AI providers does Cumbersome support?

Cumbersome supports ChatGPT/OpenAI, Claude/Anthropic, Gemini/Google AI Studio, OpenRouter, Vercel AI Gateway, Z.ai, and OpenAI-compatible custom endpoints like Ollama and Azure.

Can I compare different AI models with Cumbersome?

Yes, Cumbersome allows you to switch providers or AI models mid-conversation and compare different models on the same prompt, giving you direct insight into their performance.

What are the advanced features in Cumbersome?

Features include Face/Off Mode (AI judge picks the best of three responses), extended thinking for model reasoning, full parameter control (temperature, tokens), concurrent chats, and message editing.

Is Cumbersome available on multiple devices?

Yes, Cumbersome is natively available on iPhone, iPad, and Mac, with iCloud sync across devices. Nothing is saved to their servers.

How often is Cumbersome updated?

The latest version is 1.39.0, last updated on March 19, 2026. This indicates a relatively active development cycle for the application.

What is the age rating for Cumbersome?

Cumbersome has an age rating of 17+, suggesting it is intended for mature users due to the nature of AI interactions and potential content.