Side-by-side comparison · Updated April 2026
| Description | Private LLM is an offline AI chatbot designed for iOS and macOS devices, ensuring user privacy and data security. It offers advanced text generation features using the latest AI models, all of which run locally on the user’s device. Users pay a one-time fee with no subscription required, enjoying seamless integration with Apple ecosystems, including Siri and Shortcuts. The app supports a wide range of open-source LLM models and employs cutting-edge quantization techniques to maintain high performance. | Fly AI is a top-rated ChatGPT application, created solely for macOS 13 and later versions. It integrates an elegant design, swift responses, and the ability to set unrestricted custom instructions, all while offering exceptional ease of use and robust functionality. This native app allows the creation of bespoke AI mini-apps accessible anytime, and it prioritizes privacy by not recording user data and complying with OpenAI's data policies. |
| Category | AI Assistant | ChatGPT Plugin |
| Rating | No reviews | No reviews |
| Pricing | Paid | Paid |
| Starting Price | $9.99/mo | $4.99/mo |
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| Tags | offlineAI chatbotiOSmacOSuser privacy | ChatGPTmacOSAI-mimi-appsopenAI-data-policies |
| Features | ||
| Offline functionality | ||
| Advanced model quantization with OmniQuant | ||
| Integration with Siri and Shortcuts | ||
| One-time purchase with no subscription | ||
| Wide range of open-source model support | ||
| Fully on-device data processing | ||
| High-performance text generation | ||
| Compatibility with multiple Apple devices | ||
| Privacy-first design | ||
| User-friendly interface | ||
| Beautiful design | ||
| Fast responses | ||
| Unlimited custom instructions | ||
| Super quick access | ||
| Custom AI mini-app creation | ||
| Privacy-focused | ||
| Native macOS app built with Swift | ||
| Compatible with macOS 13+ | ||
| Free trial available | ||
| Access to latest OpenAI models (ChatGPT, GPT-4) | ||
| View Private LLM | View Fly AI | |
Explore more head-to-head comparisons with Private LLM and Fly AI.