Cumbersome: AI API Client
OpenAI & Anthropic API Client
Kostenlos
Peep our What's New to see how frequently we release new versions. We listen to our users: send us an email with your feature requests.
IMPORTANT: Requires your own API keys from OpenAI, Anthropic, or Google AI Studio. This is intentional.
I'm Peter, an indie developer in Portland, Oregon. I built Cumbersome mostly for myself because I was frustrated with how consumer AI apps actually work. Cumbersome is the manual transmission of AI apps: more complex, but with far greater control.
WHY I BUILT THIS
It's claimed that ChatGPT, Claude, and Gemini route requests to cheaper models behind the scenes to manage costs. They charge monthly subscriptions whether you use them once or a thousand times. They hide the technical controls that let you tune how models respond. And they lock you into one provider.
I wanted an iOS and macOS app that connects directly to OpenAI, Anthropic, and Google AI Studio APIs. I wanted to pick exactly which model I use and know I'm getting it. I wanted to compare Claude Opus 4.5, Gemini 3, and GPT-5 on the same prompt. I wanted to pay per use instead of subscriptions. So I built it.
WHAT YOU GET
— Face/Off Mode generates 3 responses at once and an AI judge picks the best one. Overkill for casual questions, but it makes a real difference when quality matters.
— Full control over model parameters. Temperature, tokens, system prompts, reasoning effort. The same technical controls developers get in official API playgrounds, but on your phone.
— Switch between ChatGPT models, Claude, and Gemini mid-conversation. Try a prompt on both and compare the responses.
— Edit any message in your conversation history. Consumer apps lock your context once you send it. Cumbersome lets you remove tangents, fix mistakes, and reshape the conversation.
— Native apps for iPhone, iPad, and Mac with iCloud sync. Your conversations stay on your devices and sync through your personal iCloud. I never see your data because it never touches my servers (I don't have any actually).
WHO THIS IS FOR
If you pay for ChatGPT Plus or Claude Pro and hit usage limits, this gives you unlimited access at lower cost. If you want to try different models without juggling multiple subscriptions, this puts them all in one app. If you care about exactly which model is responding to you, this guarantees you get what you pick.
If you want AI to just work without thinking about API keys or model selection, consumer apps are probably a better fit. No hard feelings.
THE DEAL
The app is free. You pay OpenAI, Anthropic, and Google directly for API access. I'm out of the money flow entirely.
One person. No VC money. No growth hacking. Just a tool I wanted to exist.
Bewertungen & Rezensionen
Diese App hat noch nicht genügend Bewertungen oder Rezensionen erhalten, um eine Übersicht anzuzeigen.
feat(deeplink): add conversation deep links with Copy Deep Link menu option
feat(ui): add copy button to markdown code blocks
chore: bump dependencies
Das Entwicklungsteam, Folding Sky Co, hat darauf hingewiesen, dass die Datenschutzrichtlinien der App den unten stehenden Umgang mit Daten einschließen können. Weitere Informationen findest du in den Datenschutzrichtlinien des Entwicklungsteams .
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- Größe
- 37.3 MB
- Kategorie
- Produktivität
- Kompatibilität
Erfordert iOS 18.0 oder neuer.
- iPhone
Erfordert iOS 18.0 oder neuer. - iPad
Erfordert iPadOS 18.0 oder neuer. - Mac
Erfordert macOS 15.0 oder neuer. - Apple Vision
Erfordert visionOS 2.0 oder neuer.
- Altersfreigabe
13+
- 13+
- Selten
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- © 2025 Folding Sky Co