Lucas vs Muse (Meta) vs Rene

Verdict

Notis aside, Lucas has the highest support score, 42% across 32 checked rows out of 33. Rene scores 41% across all 33 rows and Muse (Meta) scores 38% across all 33 rows.

Their strengths differ: Lucas for remembering context between conversations, Rene for scheduled and event-triggered work and Muse (Meta) for running long jobs on a machine of its own.

None of them documents Bring your own API key, Joins and records your meetings or Open source.

Only Notis documents Slack, Email, Runs on your own Claude plan and 6 more rows.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	LucasVisit site	Muse (Meta)Visit site	ReneVisit site
Where you can use it
WhatsApp
iMessage			—
Telegram		—	—No vendor Telegram bot documented.
Slack		—	—No vendor Slack chat app documented.	—
Email		—	—	—
SMS or a phone number	PartialInbound calls only, no SMS	Not checked	—	—
Voice messages	Voice notes + live calls		—
Web or desktop app	Web, desktop and Home Screen app
Its own iPhone or Android app	Home Screen app on iPhone	—
Bring your own AI
Runs on your own Claude plan		—	—	—
Runs on your own ChatGPT plan		—	—	—
Bring your own API key	—	—	—	—
Works inside your own coding agent		—	—	—
You choose which model runs your work			—	—
What it can do
Ready-made app integrations	1,000+ apps	—	—	—
Creates and edits documents
Save your own reusable instructions		Partial	—	—
Browses the web for you
Posts to social media for you		—	—	—
Joins and records your meetings	—	—	—	—
Memory
Remembers you between conversations
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web
Runs without you
Runs on a schedule or a trigger
Reminds and nudges you
Computers it can use
Gives it a cloud computer of its own		Partial		—
Controls your own computer	Shell and apps, via the desktop app	—		—
Connects to MCP servers on your computer		—	—	—
Trust & control
Open source	—	—	—	—
Run it on your own server	—	—	—	—
Says it will not train on your data	Covers Notis and its LLM providers	Partial	Partial	Partial
Published security certification	PartialSub-processors certified; Notis is not	—	—	—
Plans & support
Free plan does the product's main job	Partial
Shared team workspace		—	—	—
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	FreeLucas Pro$16/moyr (rate on a yearly commitment)+1 more	FreePaid subscription (higher usage limit)Custom pricing	FreeRene Pro$16.67/moyr (rate on a yearly commitment)+1 more

IncludedPartial— Not documentedNot checked

Ranked by support score

1. Notis

Personal AI assistant

Notis is a personal AI assistant you message from WhatsApp, iMessage, Telegram, Slack or email, and reach from your own coding agent through its MCP server.

Best for: running on the AI subscription you already pay for

Documented strengths

Where you can use it: WhatsApp, iMessage, Telegram, Slack, Email, Voice messages, Web or desktop app and Its own iPhone or Android app
What it can do: Ready-made app integrations, Creates and edits documents, Save your own reusable instructions, Browses the web for you and Posts to social media for you
Bring your own AI: Runs on your own Claude plan, Runs on your own ChatGPT plan, Works inside your own coding agent and You choose which model runs your work

The catch

The gap is published guarantees about your data, with nothing documented for Open source and Run it on your own server.

Pricing

FREEPRO$13/moyrPRO+$39/moyrULTRA$99/moyr

Free–$149/mo · help.notis.ai

See Notis pricingSupport score: 83% across all 33 rows

2. Lucas

Personal AI assistant

A proactive personal assistant in iMessage and WhatsApp that texts you first and completes real-life tasks such as reservations, appointments and refunds.

Best for: remembering context between conversations

Documented strengths

Where you can use it: WhatsApp, iMessage, Voice messages and Web or desktop app
Memory: Remembers you between conversations and Reads your existing files and apps
Runs without you: Runs on a schedule or a trigger and Reminds and nudges you

The catch

The gap is a computer it can use, with nothing documented for Controls your own computer and Connects to MCP servers on your computer.

Pricing

FreeLucas Pro$16/moyrLucas Max$80/moyr

Free tier; Lucas Pro $20 per month or $192 per year; Lucas Max $100 per month or $960 per year; new users get a seven-day reverse trial of the paid capabilities. · meetlucas.ai

How it differs from Notis: Lives entirely in iMessage and WhatsApp with no app to install, texts you first about what it notices, and runs web errands in its own cloud browser with a live link you tap to take over for payments or logins.

Visit Lucas Lucas alternativesSupport score: 42% across 32 checked rows out of 33

3. Rene

Messaging personal AI assistant

Personal assistant coordinating conversations, connected apps and everyday tasks.

Best for: scheduled and event-triggered work

Documented strengths

Where you can use it: WhatsApp, iMessage, Telegram, Voice messages, Web or desktop app and Its own iPhone or Android app
Memory: Remembers you between conversations and Reads your existing files and apps
Runs without you: Runs on a schedule or a trigger and Reminds and nudges you

The catch

The gap is a computer it can use, with nothing documented for Gives it a cloud computer of its own, Controls your own computer and Connects to MCP servers on your computer.

Pricing

FreeRene Pro$16.67/moyrRene Premium$200/mo

Free tier; Rene Pro $20/month or $200/year; Rene Premium $200/month (Apple in-app subscriptions). · apps.apple.com

How it differs from Notis: Messages, WhatsApp and Telegram access with personal context and coordination.

Visit Rene Rene alternativesSupport score: 41% across all 33 rows

4. Muse (Meta)

Personal AI agent

Meta personal agent for delegated everyday tasks, web actions and ongoing goals.

Best for: running long jobs on a machine of its own

Documented strengths

Where you can use it: WhatsApp, Web or desktop app and Its own iPhone or Android app
Memory: Remembers you between conversations and Reads your existing files and apps
Runs without you: Runs on a schedule or a trigger and Reminds and nudges you

The catch

The gap is messaging channels, with nothing documented for iMessage, Telegram, Slack, Email, SMS or a phone number and Voice messages.

Pricing

FreePaid subscription (higher usage limit)Custom pricing

Free with a usage limit; paid subscription for more usage, amounts unpublished. · ai.meta.com

How it differs from Notis: Dedicated persistent cloud computer, WhatsApp access and approval-gated actions.

Visit Muse (Meta)Muse (Meta) alternativesSupport score: 38% across all 33 rows

Questions about this comparison

Which of Lucas, Rene or Muse (Meta) scores highest in the evidence checked so far?

Lucas, with 42% across 32 checked rows out of 33. Rene scores 41% across all 33 rows and Muse (Meta) scores 38% across all 33 rows.

How much do they cost?

Lucas: Free tier; Lucas Pro $20 per month or $192 per year; Lucas Max $100 per month or $960 per year; new users get a seven-day reverse trial of the paid capabilities; Rene: Free tier; Rene Pro $20/month or $200/year; Rene Premium $200/month (Apple in-app subscriptions); Muse (Meta): Free with a usage limit; paid subscription for more usage, amounts unpublished. These prices are not directly comparable, so we do not rank them.

Which of them can I try for free?

Lucas, Rene and Muse (Meta) have a free tier.

Which of them work in iMessage?

Lucas and Rene do. Muse (Meta) does not.

What can none of them do?

None of them documents Bring your own API key, Joins and records your meetings, Open source or Run it on your own server.

Where does Notis fit in?

Notis is number 1 on this page. Against Lucas: Lives entirely in iMessage and WhatsApp with no app to install, texts you first about what it notices, and runs web errands in its own cloud browser with a live link you tap to take over for payments or logins.

How we checked

We checked each product's official pages against the same 33 capability rows. The support score is the share of checked rows a product documents. Partial support counts half, and rows not checked yet stay out of the score. Notis chose the rows and is scored the same way. The score does not measure reliability, reply speed or writing quality. Last checked 21 August 2026.

Sources

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