Lumo AI Coupons & Pricing
Lumo AI Plus
2 plans ยท best save 23%
Monthly
Unlimited Projects | More Max model usage | Unlimited Custom Lumos

Yearly โ Best Deal
Unlimited Projects | More Max model usage | Unlimited Custom Lumos
Is this Lumo AI deal legit?
Yes. The discount comes from Proton itself, and there’s no code to hunt for, because the saving is built into the yearly plan.
Official Proton checkout
You pay on Proton’s own site, not through a reseller or a key shop, so the subscription is tied directly to your Proton account.
Nothing hidden in the price
$119.88 is 12 months at $9.99. Compared with paying $12.99 every month, you keep $36 a year.
30-day money-back guarantee
Lumo Plus comes with a 30-day refund window, so trying the yearly plan isn’t a one-way bet.
Your chats stay yours
Lumo keeps no logs of your conversations, never uses them to train AI models, and stores your history with zero-access encryption under European (GDPR) privacy law.
How to Use the Lumo AI Coupon Code
- Click on the “Get Deal” button above to open Proton’s official Lumo page.
- Sign in with your Proton account, or create a free one. You can chat with Lumo as a guest, but Lumo Plus needs an account to attach the subscription to.
- Choose Lumo Plus and switch the billing period to 12 months. This step matters: the 23% saving only shows on yearly billing, so the monthly option will still read $12.99.
- Check that the total says $119.88, then pay on Proton’s checkout.
- Plus features unlock on your account straight away, in the browser and in the mobile apps.

Lumo AI Review & Features
What sets Lumo AI apart is that Proton actually explains its privacy model instead of just promising one. Your message is encrypted on your device with a one-time key that only the Lumo server can unlock, so Proton’s own load balancers and queues pass along data they can’t read. Saved history then gets the same zero-access treatment as Proton Mail, locked behind your password. The honest catch, and Proton says it openly, is that the AI has to read your prompt in plain text to answer it.

At that moment you’re relying on Proton’s no-logs promise, not on math. That’s still a much stronger position than mainstream chatbots, and the open-source code means outside experts can check the claims. Day to day, it feels like a normal assistant: you type, it streams an answer, and the encryption stays out of your way.
Key features
- Image generation: describe a visual and refine it, without your ideas being reused to train someone else’s results.
- Built-in web search: real-time answers for current questions, with queries never used for ad targeting.
- Proton Drive linking: connect files and folders to review code, summarize reports or work through documents securely.
- Projects and Custom Lumos: organize work by client or topic (unlimited on Plus, one project on Free).
- Thinking mode (Lumo 2.0): a slower, more careful reasoning mode for complex research questions.
- 11 languages: English, Chinese, Spanish, French, Portuguese, Russian, German, Japanese, Korean, Italian and Dutch.
What we think
mor Lumo AI Screenshots
Which Lumo plan should you pick?
| Plan | Price | Max model usage | Messages & history | Image generation | Projects | Custom Lumos | Best for |
|---|---|---|---|---|---|---|---|
| Free | $0 | Limited | Limited | Limited | 1 | Not included | Occasional private questions |
| Plus Monthly | $12.99/month | More | More | More | Unlimited | Unlimited | Testing Plus for a month or two |
| Plus Yearly | $119.88/year (about $9.99/month) | More | More | More | Unlimited | Unlimited | Daily users who want the 23% saving |
Lumo AI vs other AI assistants
| Tool | Type | Price | Free option | Where your prompts go | Best for |
|---|---|---|---|---|---|
| Lumo Plus (our pick for privacy) | Private AI chat assistant | $119.88/yr | Yes, plus guest access | Proton’s own servers in Europe; no logs, no AI training, zero-access encrypted history | Sensitive work, health or money questions |
| Lorka AI Pro | Multi-model chat (GPT, Claude, Gemini and more) | $69.99/yr | Trial access advertised; exact free allowance not confirmed | Sent on to third-party model providers | Switching between big-name models in one app |
| MyClaw | AI chat + hosted AI agent (OpenClaw) | $139.30/yr(LITE) | Yes, limited guest messages | AI Chat uses routed models; hosted agents run in dedicated, isolated cloud environments | Running an always-on personal AI agent |
| ChatOn AI Assistant | Multi-model chat app (mobile + web) | $24/yr | Yes; limited access, with web trial allowances | Sent on to third-party model providers | Casual everyday AI on your phone, with an AI keyboard |
| 1min.AI | Multi-model AI toolkit | $32/lifetime (Pro) | Yes; Free plan and daily credits | Sent on to third-party model providers | Bulk text, image and audio tasks on a budget |
Frequently Asked Questions
Do I need a coupon code for the Lumo AI discount?
No. The 23% saving applies automatically when you choose yearly billing for Lumo Plus. There’s no code field to fill in.
Is Lumo AI free?
Yes, Lumo has a free plan with limited messages, chat history, image generations and one Project. No credit card is required, and you can even use it as a guest without a Proton account.
Does Proton see my prompts while Lumo is answering?
Not in transit, but the AI itself reads them. Your message stays encrypted all the way through Proton’s internal systems until it reaches the Lumo server, which decrypts it to generate a reply. The server keeps no log of the request once the answer is sent, and your saved history is encrypted so only you can read it.
Is Lumo good for business use?
Yes, there’s a separate Lumo for Business plan with admin tools to manage team access. Proton says it’s designed to support GDPR and HIPAA compliance, backed by its ISO 27001 and SOC 2 certifications.
Is Lumo better than multi-model apps like Lorka AI or 1min.AI?
For privacy, yes; for model choice, no. Apps like Lorka AI and 1min.AI let you switch between GPT, Claude, Gemini and others, but they pass your prompts on to those providers. Lumo runs its own open-source models on Proton’s servers with no logs, so you trade some model variety for keeping your conversations private.
Can I get a refund on Lumo Plus?
Yes. Lumo Plus comes with a 30-day money-back guarantee, on both the Monthly and Yearly plans. That makes the Yearly plan a low-risk way to lock in the 23% saving: if Lumo doesn’t fit how you work, you can ask for your money back within the first 30 days.
System Requirements & Details
| Field | Value |
|---|---|
| Platforms | Web browser, iOS and Android |
| Account | Optional on Free (guest access, including over Tor); a Proton account is required for Lumo Plus |
| Languages | English, Chinese, Spanish, French, Portuguese, Russian, German, Japanese, Korean, Italian, Dutch |
| File uploads | Plus supports multiple and large file uploads |
| Integrations | Link files and folders from Proton Drive |
| Other requirements | Internet connection |


