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
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

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
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

€9.99 per month
Free Version
Free Trial

Pricing

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

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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

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

Categories

Artificial Intelligence Features

Chatbot
For eCommerce
For Healthcare
For Sales
Image Recognition
Machine Learning
Multi-Language
Natural Language Processing
Predictive Analytics
Process/Workflow Automation
Rules-Based Automation
Virtual Personal Assistant (VPA)

Integrations

AGAT Secure AI Platform
AI Rankly
Alkemi
BlueGPT
BrandAxis
Brandlight
Brantial
Cloudgov.ai
Cove
Findrix
Glara
Keytail
Kubegrade
Nily AI
OutX
SKYA
Searchable
Thirdeye
Trusys AI
Visibility.so

Integrations

AGAT Secure AI Platform
AI Rankly
Alkemi
BlueGPT
BrandAxis
Brandlight
Brantial
Cloudgov.ai
Cove
Findrix
Glara
Keytail
Kubegrade
Nily AI
OutX
SKYA
Searchable
Thirdeye
Trusys AI
Visibility.so
Claim Lumo and update features and information
Claim Lumo and update features and information
Claim Perplexity and update features and information
Claim Perplexity and update features and information