Private LLM - Local AI Chatbot 17+

Secure Private AI Chatbot

Numen Technologies Limited

    • $9.99


Discover Private LLM, your secure, private AI assistant for iPhone, iPad, and macOS. Designed to boost your productivity and creativity while ensuring your privacy, Private LLM is a one-time purchase offering a universe of AI capabilities without subscriptions. Our chatbot utilizes cutting-edge on-device AI to keep your interactions confidential and completely offline, compatible with all your Apple devices.

Why Choose Private LLM?

- Diverse AI Models at Your Command: Select from a wide array of open-source LLM model families such as Google Gemma 2B, Mixtral 8x7B, Mistral 7B, Llama 2 (7B, 13B, and 33B), CodeLlama 13B, Solar 10.7B, and Phi 2 3B. Customize your AI experience for creative brainstorming, coding assistance, or daily inquiries.

- Seamless Siri & Shortcuts Integration: Enhance your AI interactions with Siri commands and customizable Shortcuts, making your digital assistant more integrated and accessible within your Apple ecosystem.

- Customizable System Prompts: Fine-tune your AI's responses and interactions to your liking with customizable system prompts, catering to your specific needs and preferences.

- Complete Privacy and Security: Private LLM confines your conversations to your device, providing unparalleled privacy. Our on-device AI enables powerful computing without data compromise or the need for an internet connection.

- Family Sharing & Offline Functionality: A one-time purchase that supports Family Sharing. Download models as needed and enjoy full AI assistant functionality, even offline.

- System Wide Grammar Correction and Summarization: Offering grammar correction, summarization, text shortening, and rephrasing within any app on your Mac.

Private LLM is more than a chatbot; it's an all-encompassing AI companion that respects your privacy while offering versatile, on-demand assistance. Whether for creative writing, solving complex programming issues, or general inquiries, Private LLM adapts to your needs, ensuring your data remains secure and on your device. Embark on a journey with Private LLM today and elevate your productivity and creative projects with the most private AI assistant for macOS and iOS devices.

Leveraging state-of-the-art Omniquant quantized models, Private LLM is a native Mac app that surpasses others with superior text generation, faster performance, and deeper integration compared to apps using generic baseline RTN quantized models like Ollama and LMStudio.

Supported Model Families:

- Google Gemma Based Models
- Mixtral 8x7B Based Models
- Llama 33B Based Models
- Llama 2 13B Based Models
- CodeLlama 13B Based Models
- Llama 2 7B Based Models
- Solar 10.7B Based Models
- Phi 2 3B Based Models
- Mistral 7B Based Models
- StableLM 3B Based Models
- Yi 6B Based Models
- Yi 34B Based Models

For a full list of supported models, including detailed specifications, please visit our website.

Optimized for Apple Silicon Macs with the Apple M1 chip or later, Private LLM for macOS delivers the best performance. Users on older Intel Macs without eGPUs may experience reduced performance.

What’s New

Version 1.8.4

- New 4-bit OmniQuant quantized downloadable model: Gemma 1.1 2B IT (Downloadable on all compatible Macs, also available on the iOS version of the app).
- New 4-bit OmniQuant quantized downloadable model: Dolphin 2.6 Mixtral 8x7B (Downloadable on Apple Silicon Macs with 32GB or more RAM).
- New 4-bit OmniQuant quantized downloadable model: Nous Hermes 2 Mixtral 8x7B DPO (Downloadable on Apple Silicon Macs with 32GB or more RAM).
- Minor bug fixes and improvements.

If you have any feedback or questions, we'd love to hear from you! Numen Technologies offers free tech support; you can email:, message us on our Discord, or Tweet at us @private_llm. If you find Private LLM to be useful, we'd appreciate a review on the App Store. Your review will help other people find Private LLM.

Ratings and Reviews

4.7 out of 5
73 Ratings

73 Ratings

ThePotatoKing55 ,

Pretty great, but it has some limitations

The implementation here is great, especially now that the devs have added support for several models! Works best with devices with a lot of RAM - I have an iPhone 15 Pro, which seems to be enough, but my old 12 didn't really handle it well. I just wish you could save threads like in the ChatGPT app (and maybe give specific system instructions depending on the thread?). Otherwise, pretty good and worth the price!

Also, if we could save specific temperature and top-P presets with models and maybe be able to directly type values in, that would be nice.

N7nathan ,

So much potential

I've been using this app for a couple of months at this point. When it was first released, it was a neat proof of concept, but it only supported 7B models and was overall just too simple to use effectively. With a recent update, a 13B model was released for all macs with 16GB of memory, and it makes such a huge difference! It's not quite at the same level as ChatGPT 3.5T, but it's close enough that I never use 3.5T anymore; this is my go-to. I greatly appreciate the on-device processing (hallelujah privacy!), and it doesn't even use too much power - my battery still lasts for hours and hours. The performance is also great; my base M1 Air powers right through the prompts.

I only have two complaints about the app at this point. 1) The 13B model uses about 12GB of memory by itself, which does force the use of swap on a 16GB Air. Not much the dev can do about this, but it is something to keep in mind. You'll want to close out of other programs before launching this. 2) There still is no feature that has separate conversations. If you want to start a new conversation, you need to delete the existing conversation. I'd love it if we could get separate conversations in a future update; it would make this app so much easier to use.

Overall, I love it and do not regret buying it at all. I can't wait to see what future updates bring :)

Universe NZ ,

A great tool, with huge potential.

Obviously being an offline GPT limits the responses, but the fundamentals for something impressive in future less memory restricted devices eg iPhone 15 and beyond is really exciting. Offline and privacy focused are essential qualities of this app and it works quite well. A good bargain for the price with an active developer. One recommendation/piece of feedback would be to provide information on what the settings TOP-P and temperature do. If we come across an error or weird, reproducible response could you provide an option to email you a log so we can forward you the issue easily? This way you don’t need to embed any privacy violating analytics packages.

Developer Response ,

Thanks for your feedback! Indeed we're hoping the upcoming iPhone 15 series of devices will have more memory, so we can ship bigger and smarter models for newer devices (As free updates, of course!). We're in the process of adding an FAQ on our website to answer the temperature, top-p question. We've already received the question a few times by now on our support email and on discord. Perhaps I should also add a help section within the app. Thanks for the suggesting the email log idea, I'll add it to our backlog. We specifically don't embed any analytics packages in the app, that would be antithetical to the concept of privacy, which is one of our app's USPs. The only logs we get are crash-logs from iOS's off by default, and opt-in Analytics feature (Settings -> Privacy & Security -> Analytics & Improvements -> Share With App Developers). Also, responses from the LLM in the app are (intentionally) stochastic, and are often hard to reproduce.

App Privacy

The developer, Numen Technologies Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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