Lumo by Proton Alternatives

Lumo by Proton is described as 'Privacy-first AI assistant with zero-access encryption, no logging or profiling, open-source code, and user-controlled conversations, subject to GDPR regulations' and is a very popular AI Chatbot in the ai tools & services category. There are more than 100 alternatives to Lumo by Proton for a variety of platforms, including Web-based, Android, Mac, iPhone and Windows apps. The best Lumo by Proton alternative is ChatGPT, which is free. Other great apps like Lumo by Proton are DeepSeek, Mistral Vibe, Perplexity and Google Gemini.

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Lumo by Proton alternatives are mainly AI Chatbots, but if you're looking for Large Language Model (LLM) Tools or AI Writing Tools you can filter on that. Other popular filters include Open Source. These are just examples - use the filter bar below to find more specific alternatives to Lumo by Proton.
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Alternatives list

  1. Meta AI icon
     27 likes

    Built with Meta Meta Llama, Meta AI is one of the world’s leading AI assistants, already on your phone, in your pocket for free. And it’s starting to go global with more features. You can use Meta AI on .

    155 Meta AI alternatives

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Facebook
    • WhatsApp
    • Instagram
    • Facebook Messenger
    • Mac
     
  2. Khoj icon
     46 likes

    Open-source app offers local or cloud AI chat with major LLMs, advanced semantic search, automation, personal newsletters, document indexing, image generation, and text-to-speech. Access from web, Obsidian, Emacs, desktop, mobile, or messaging platforms.

    39 Khoj alternatives

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Python
    • Homebrew
    • Docker
     
  3. Maid (AI) icon
     17 likes

    Maid is a cross-platform Flutter app for interfacing with GGUF / llama.cpp models locally, and with Ollama and OpenAI models remotely.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • Android Tablet
    • F-Droid
     
  4. Odysseus icon
     15 likes

    Self-hosted AI workspace offering chat, tool use, and autonomous agent support. Enables email and research tasks securely on user hardware, keeps all data local, requires no external servers, and provides customizable AI workflows for privacy-focused environments.

    12 Odysseus alternatives

    Cost / License

    Platforms

    • Self-Hosted
    • Docker
     
  5. Together Chat icon
     17 likes

    Together Chat is a next-generation consumer app designed to let you interact seamlessly with today's most popular open-source models, including free access to DeepSeek R1, securely hosted in the North America.

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  6. Provides AI-powered writing tools, image generation, Genmoji, and memory movies; enhances Siri with deeper context and actions; integrates ChatGPT for complex tasks; prioritizes on-device processing for privacy; unifies features across Apple devices with Private Cloud Compute.

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Mac
    • iPhone
    • iPad
     
  7. fullmoon icon
     17 likes

    The simplest way to use private LLMs: Works fully offline and private when you don’t have internet. Runs models on-device optimized for Apple silicon.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • iPhone
    • iPad
    • visionOS
     
  8. LlamaGPT icon
     28 likes

    LlamaGPT is a chatbot that provides a ChatGPT-like experience, with no data leaving your device.

    Cost / License

    • Free
    • Proprietary (MIT)

    Platforms

    • Software as a Service (SaaS)
     
  9. Kai AI icon
     9 likes

    Open-source AI assistant builds interactive chat interfaces with elements like buttons, forms, and tables, delivers over 40 tools, supports 24 AI services, local models for offline use, encrypted chat history, no ads, free usage, and privacy by design.

    63 Kai AI alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • F-Droid
    • iPhone
    • iPad
    • Android Tablet
    • Chrome OS
     
  10. Private GPT icon
     34 likes

    Ask questions to your documents without an internet connection, using the power of LLMs. 100% private, no data leaves your execution environment at any point. You can ingest documents and ask questions without an internet connection!

    309 Private GPT alternatives

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
     
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