opencat.app

What It Is

OpenCat is a native AI chat client for Mac, iOS, and iPad, positioned as a smoother and faster AI experience than using web apps. It is not just a single chat window: it brings together multi-model chat, voice, images, translation, keyboard extensions, Siri Shortcuts, iCloud Sync, and other Apple ecosystem features. It is a good fit for users who want to access AI at the system level whenever they need it.

Core Features

Based on the information on the website, OpenCat supports Multiple Models, GPT Access, Voice Chat, Vision Chat, Text to Image, Image Chat, and Translation. It also offers Markdown rendering and a Prompt Library, making it easier to produce structured outputs and quickly start common tasks. The keyboard extension is especially useful: it lets you use AI inside apps such as Messages, Notes, and Mail. Siri Integration/Shortcuts are also helpful for asking questions quickly without opening the app. However, the official site does not disclose the specific model names, context length, model providers, or clearly explain how built-in keys work. It only hints at the option to “use your own keys.”

Pricing and Trial

OpenCat Free is free and includes the prompt library, Markdown, multiple models, and some features. OpenCat Pro is listed at USD 9.99, described on the page as a one-time purchase, and includes capabilities such as the keyboard extension, iCloud sync, Siri, text-to-speech, and teams. Cloud AI shows a 3-day free trial, with prices of USD 2.99 and USD 19.99, marked as saving 44%, but the corresponding billing periods are not very clear. The FAQ also says Pro has a 3-day trial, which is slightly inconsistent with the pricing section.

Pros and Cons

The main advantages are its strong native Apple experience, broad coverage across text, voice, image, and translation features, deep integration into system-level use cases, and the availability of a free entry-level plan. The downside is the lack of transparency around key details: model specifications, API capabilities, Chinese interface/Chinese voice support, payment methods, and privacy policy details are not explained in the main content. On privacy, the site only says it uses advanced encryption to protect data, without clarifying data retention, transmission to third-party model providers, or whether data is used for training.

Who It’s For and Access from China

OpenCat is suitable for Mac/iPhone/iPad users, AI productivity users, and individuals or lightweight teams who need to quickly invoke AI in email, notes, or messaging apps. The main page does not provide information about access from China, so its availability is unknown. If it relies on GPT Access, the actual experience may be affected by network conditions, account availability, and payment environment. Alternatives include the official ChatGPT App, Poe, Perplexity, Raycast AI, MindMac, Monica, and others. It is recommended to start with the free version or the 3-day trial, then pay only after confirming network access, Chinese-language performance, and the billing cycle.