Lucas vs Rene vs Tab

Verdict

Notis aside, Tab has the highest support score, 73% across 13 checked rows out of 33. Lucas scores 42% across 32 checked rows out of 33 and Rene scores 41% across all 33 rows.

Their strengths differ: Tab for reaching it from the apps you already message in, Lucas for remembering context between conversations and Rene for scheduled and event-triggered work.

Only Notis documents Ready-made app integrations.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	LucasVisit site	ReneVisit site	TabVisit site
Where you can use it
WhatsApp
iMessage
Telegram		—		Not checked
Slack		—	—	Not checked
Email		—	—	Not checked
SMS or a phone number	PartialInbound calls only, no SMS	Not checked	—	Not checked
Voice messages	Voice notes + live calls
Web or desktop app	Web, desktop and Home Screen app			Not checked
Its own iPhone or Android app	Home Screen app on iPhone	—		Not checked
Bring your own AI
Runs on your own Claude plan		—	—	Not checked
Runs on your own ChatGPT plan		—	—	Not checked
Bring your own API key	—	—	—	Not checked
Works inside your own coding agent		—	—	Not checked
You choose which model runs your work			—	Not checked
What it can do
Ready-made app integrations	1,000+ apps	—	—	—
Creates and edits documents
Save your own reusable instructions		Partial	—	Not checked
Browses the web for you
Posts to social media for you		—	—	Not checked
Joins and records your meetings	—	—	—	Not checked
Memory
Remembers you between conversations
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web			Partial
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	—	—	Not checked
Connects to MCP servers on your computer		—	—	Not checked
Trust & control
Open source	—	—	—	Not checked
Run it on your own server	—	—	—	Not checked
Says it will not train on your data	Covers Notis and its LLM providers	Partial	Partial	—Not stated
Published security certification	PartialSub-processors certified; Notis is not	—	—	—
Plans & support
Free plan does the product's main job	Partial			Not checked
Shared team workspace		—	—	Not checked
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	FreeLucas Pro$16/moyr (rate on a yearly commitment)+1 more	FreeRene Pro$16.67/moyr (rate on a yearly commitment)+1 more	Waitlist

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. Tab

Personal AI assistant

A personal assistant in iMessage and WhatsApp that browses websites, creates files and calls businesses.

Best for: reaching it from the apps you already message in

Documented strengths

Where you can use it: WhatsApp, iMessage and Voice messages
Runs without you: Runs on a schedule or a trigger and Reminds and nudges you
What it can do: Creates and edits documents and Browses the web for you

The catch

The gap is published guarantees about your data, with nothing documented for Says it will not train on your data and Published security certification.

Pricing

Waitlist

Pricing not publicly disclosed; private beta and waitlist access. · tab.bot

How it differs from Notis: Handles errands through its own browser and outbound calls, with approval before purchases. Access is in private beta.

Visit Tab Tab alternativesSupport score: 73% across 13 checked rows out of 33

3. 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 messaging channels, with nothing documented for Telegram, Slack, Email and Its own iPhone or Android app.

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

4. 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 messaging channels, with nothing documented for Slack, Email and SMS or a phone number.

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

Questions about this comparison

Which of Tab, Lucas or Rene scores highest in the evidence checked so far?

Tab, with 73% across 13 checked rows out of 33. Lucas scores 42% across 32 checked rows out of 33 and Rene scores 41% across all 33 rows.

How much do they cost?

Tab: Pricing not publicly disclosed; private beta and waitlist access; 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). These prices are not directly comparable, so we do not rank them.

Which of them can I try for free?

Lucas and Rene have a free tier and free-tier availability is not checked yet for Tab.

Which of them work in Telegram?

Rene does. Lucas does not. Tab is not checked yet.

Where does Notis fit in?

Notis is number 1 on this page. Against Tab: Handles errands through its own browser and outbound calls, with approval before purchases. Access is in private beta.

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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