Lumo

Lumo

Proton AG
Perplexity

Perplexity

Perplexity AI
+
+

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About

Lumo is a privacy-first AI assistant built to deliver the power of generative AI while keeping your conversations completely confidential. Developed by the privacy experts behind Proton Mail and VPN, Lumo ensures that your dialogues remain yours alone, no logs are stored on the server side, and all saved chats are encrypted with zero-access encryption, meaning even Proton cannot read them. Open source by design, the service is transparent and verifiable. You can ask Lumo anything, from summarizing documents and rewriting emails to coding assistance, translations, brainstorming, and more, without any risk of your data being used to train models or shared with third parties. Conversations are encrypted end-to-end, and even the AI’s web search capability (if enabled) runs through privacy-friendly engines. Available without signup and deployable via web or mobile apps, Lumo offers both free and plus plans.

About

Perplexity is an AI-powered search and answer engine designed to provide accurate, real-time information. It combines natural language processing with web search to deliver concise and reliable answers. Users can ask questions conversationally and receive responses backed by cited sources. The platform focuses on transparency by showing where information comes from. It supports research, learning, and decision-making across various topics. Perplexity also offers follow-up questions to deepen understanding. Overall, it is a modern alternative to traditional search engines.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Audience

Individuals and professionals in search of an AI tool for drafting, coding, and summarizing

Audience

Perplexity is ideal for students, researchers, professionals, and everyday users who need fast, reliable, and source-backed answers for research and decision-making

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

€9.99 per month
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free to use for everyone. Pro features are available for $20/month.
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 4.7 / 5
ease 4.7 / 5
features 4.0 / 5
design 4.0 / 5
support 4.0 / 5

Pros & Cons from Real Users

Pros

  • Easy to use and ask questions. Answers are easy to understand, helpful and on target. Totally PRIVATE, they are NOT earning money by selling my data - thus I pay for it.

Cons

  • None found yet. Been using only a couple of months - but had tried ChatGPT, and CoPilot before.

Pros & Cons from Real Users

Pros

  • Provides answers with citations, along with source links. Acknowledges when there are disagreeing perspectives and cites both sides.
  • Web search better than Google. Copilot help with searches. Usage of multiple models like GPT4. CLAUDE. GEMINI (GOOGLE)... Easy to organize your searches. Image generation integrated. Video search integrated. Academic search integrated. Youtube only search integrated. Reddit only search integrated.
  • Really good for getting any kind of information summarized or in any other text format, with all sources for you to check if you question the answers. Better for personal use then ChatGPT.

Cons

  • Prone to factual errors. I have found this on numerous occasions by following up on the citations provided. An example: What were Dodi Fayed’s injuries? Answer says that he had a rarely-seen tear in a pulmonary vein. Checking the source cited, it is stated clearly that this was the injury sustained by Princess Diana, NOT her companion. A simple, obvious factual error like this makes me unwilling to rely on Perplexity yet.
  • Probably uses your data on searches for their training. Problems with the usage between online search and just talking with a specific LLM on a single thread (search). They probably don't care about old users as of now, basically cuz they been giving away free PP pro these lasts months.
  • It seems to learn what language I most often use. I would rather it gave me answers in the language as ask the question so I do not need to specify all other languages then my first.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Proton AG
Founded: 2014
Switzerland
lumo.proton.me/

Company Information

Perplexity AI
Founded: 2022
United States
www.perplexity.ai/

Alternatives

Alternatives

Perplexity Pro

Perplexity Pro

Perplexity AI
Proton Meet

Proton Meet

Proton
Lumos Stepup

Lumos Stepup

Lumos Learning

Categories

Confidential AI Supported

Categories

AI Chatbots Supported
AI Tools Supported
AI Workspaces Supported
Generative AI Supported
LLM API Supported
Search Engines Supported

Artificial Intelligence Features

Chatbot Supported
For eCommerce Not Supported
For Healthcare Not Supported
For Sales Not Supported
Image Recognition Not Supported
Machine Learning Not Supported
Multi-Language Supported
Natural Language Processing Not Supported
Predictive Analytics Not Supported
Process/Workflow Automation Not Supported
Rules-Based Automation Not Supported
Virtual Personal Assistant (VPA) Not Supported

Integrations

AISEOTRACKER Not Supported
Arena.ai Not Supported
Azuqe Not Supported
Clovion AI Not Supported
Convertos.ai Not Supported
Cyclr Not Supported
FluxPrompt Not Supported
LagRank Not Supported
Lorelight Not Supported
Lumentir Not Supported
Minddex Not Supported
OutX Not Supported
OwlProxy Not Supported
Profound Not Supported
RankBIT Not Supported
SEOwind Not Supported
Temso AI Not Supported
Tribii Not Supported
Vity Not Supported
Wispr Flow Not Supported

Integrations

AISEOTRACKER Supported
Arena.ai Supported
Azuqe Supported
Clovion AI Supported
Convertos.ai Supported
Cyclr Supported
FluxPrompt Supported
LagRank Supported
Lorelight Supported
Lumentir Supported
Minddex Supported
OutX Supported
OwlProxy Supported
Profound Supported
RankBIT Supported
SEOwind Supported
Temso AI Supported
Tribii Supported
Vity Supported
Wispr Flow Supported
Claim Lumo and update features and information
Claim Lumo and update features and information
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Claim Perplexity and update features and information