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ChatAi Unlimited
Access OpenAI’s powerful language models directly on your Apple devices using your own API key to avoid subscription markups and ensure total data privacy.
About ChatAi Unlimited
ChatAi Unlimited is a native Apple client designed for users who want a direct interface with OpenAI’s models without the recurring costs of third-party middleman services. Built entirely with SwiftUI, the app provides a fast, lightweight, and 100% native experience across iPhone, iPad, and Mac. Unlike many AI chat apps that charge monthly subscriptions or mark up token prices, this tool allows users to input their own OpenAI API key, ensuring they only pay for exactly what they use at raw developer rates. This approach eliminates the middleman and provides a more transparent cost structure for frequent AI users. The application offers deep customization for every conversation, allowing for a highly personalized user experience. Users can select specific models like GPT-3.5-turbo or GPT-4, adjust creativity through temperature settings, and define system messages to set the AI's behavior. A standout feature is the Personas library, which includes pre-made chat templates for various tasks, alongside the ability for users to create, edit, and favorite their own custom prompts. The interface supports light and dark modes and includes utilities like message regeneration, editing, and the ability to view API usage and costs for individual threads. This client is ideal for power users, developers, and privacy-conscious individuals who already have an OpenAI account and prefer a one-time purchase over a subscription. It caters to those who want a more Apple-like experience than the standard web interface provides, offering local storage of all conversations and a UI that feels at home on iOS and macOS. It is particularly beneficial for users who frequently switch between devices and want a unified, native tool for their AI interactions. Because it uses the user's own API key, it is also a popular choice for those looking to avoid the high monthly fees of ChatGPT Plus. What sets ChatAi Unlimited apart is its commitment to privacy and transparency. The developer collects no data, and all chat history is stored locally on the device rather than on a third-party server. By removing the markup found in other apps, it provides a cost-effective alternative for those who don't need the web-specific features of official platforms. The focus on a 100% native SwiftUI build also results in a significantly more responsive experience compared to web-wrapped alternatives, making it a professional-grade tool for mobile AI interaction.
Pros & cons
Pros
- Allows users to avoid expensive monthly subscriptions by using their own OpenAI API key.
- Completely native SwiftUI design ensures high performance and a seamless Apple UI experience.
- Prioritizes user privacy by storing all chat history locally and collecting zero data.
- Offers granular control over AI behavior including temperature settings and system prompts.
- Includes a library of personas and supports the creation of custom user-made templates.
Cons
- Requires a separate OpenAI API account, which may be confusing for non-technical users.
- Does not currently include a search function for finding specific messages within long chat histories.
- Some users report stability issues and timeouts when processing very long GPT-4 prompts.
- Support is primarily handled through Twitter, which may be inconvenient for users without an account.
Use cases
- Developers can use their own API keys to test different GPT models and system prompts in a native iOS environment.
- Privacy-conscious users can chat with AI models knowing their data is stored locally and not collected by the app developer.
- Frequent AI users can save money by paying raw API rates instead of high-margin monthly subscription fees.
- Writers can utilize custom personas and system messages to maintain consistent AI behavior across different creative projects.
- Mobile professionals can access a fast, responsive AI interface on iPhone and iPad that feels more integrated than a web browser.
Features
- custom api key support
- local conversation storage
- adjustable temperature settings
- universal apple compatibility
- pre-made ai personas
- custom system messages
- per-chat model selection
- swiftui native interface
Pricing
Standard Purchase
$2.99 / one-time
- Use your own OpenAI API key
- Universal Apple app (iPhone/iPad/Mac)
- Pre-made AI personas
- Custom prompt creation
- Local conversation storage
- No monthly markup fees
- Per-chat model selection
- Adjustable temperature settings
- Light and dark mode
- Token usage tracking
FAQs
Do I need an OpenAI account to use this app?
Yes, ChatAi Unlimited requires you to provide your own OpenAI API key to function. This allows you to pay OpenAI directly for your usage without any additional markups from the app developer.
Where is my chat history stored?
All conversations are stored locally on your device only. The developer does not collect any data, ensuring your interactions remain private and are not uploaded to external servers.
Does the app support GPT-4?
Yes, the app supports the latest OpenAI models including GPT-3.5-turbo and GPT-4. Users can select their preferred model within the per-chat settings or set a default for new conversations.
Can I create my own custom AI personas?
Absolutely. You can choose from pre-made chat templates or add your own custom prompts, which can be edited, hidden, or favorited for quick access in future sessions.
Ratings & reviews
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