Boski vs Lucas vs Prio

Verdict

Notis aside, Prio has the highest support score, 47% across 32 checked rows out of 33. Lucas scores 42% across 32 checked rows out of 33 and Boski scores 39% across 31 checked rows out of 33.

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

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

Only Notis documents Runs on your own Claude plan, Runs on your own ChatGPT plan, Works inside your own coding agent and 3 more rows.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	BoskiVisit site	LucasVisit site	PrioVisit site
Where you can use it
WhatsApp				PartialNamed as a channel; no setup page
iMessage				PartialSendblue iMessage channel; no setup page
Telegram		—	—	Vendor bot; Business tier (EUR 199) only
Slack		—	—	Slack bot you DM; Business tier only
Email			—	Reply to its emails; forward-in address
SMS or a phone number	PartialInbound calls only, no SMS	—	Not checked	PartialInbound phone agent; SMS via Sendblue
Voice messages	Voice notes + live calls			Voice notes + live browser voice agent
Web or desktop app	Web, desktop and Home Screen app			Browser app (PWA); no desktop client
Its own iPhone or Android app	Home Screen app on iPhone	Partial	—	PartialNative iOS app; no store link on site
Bring your own AI
Runs on your own Claude plan		—	—	—No; usage metered in chats per day
Runs on your own ChatGPT plan		—	—	—No; Anthropic-only, via API
Bring your own API key	—	—	—	—Not offered; flat-rate plans only
Works inside your own coding agent		—	—	—Consumes MCP servers; publishes none
You choose which model runs your work		Not checked		PartialAuto Sonnet/Opus routing; no picker
What it can do
Ready-made app integrations	1,000+ apps	—	—	Partial11 in directory; vendor says 15+
Creates and edits documents				Creates/updates Notion pages (Pro+)
Save your own reusable instructions		—	Partial	Not checked
Browses the web for you		Not checked		—Deep research reads pages; no actions
Posts to social media for you			—	LinkedIn publish + schedule (Pro+)
Joins and records your meetings	—	—	—	—No bot/recorder; Granola notes via MCP
Memory
Remembers you between conversations				Cross-session + year-over-year recall
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web			Drive, OneDrive, Notion, Gmail, Outlook
Runs without you
Runs on a schedule or a trigger				Rules engine + cron presets (Pro+)
Reminds and nudges you				Follow-up nudges, recurring (Starter+)
Computers it can use
Gives it a cloud computer of its own		—	Partial	—No persistent machine; hosted chat only
Controls your own computer	Shell and apps, via the desktop app	—	—	—PWA; nothing installed on your machine
Connects to MCP servers on your computer		—	—	—Remote MCP server URLs only
Trust & control
Open source	—	—	—	—Closed source; no repository linked
Run it on your own server	—	—	—	—'Cloud-only ... No self-hosting option'
Says it will not train on your data	Covers Notis and its LLM providers	Partial	Partial	Vendor and AI providers never train
Published security certification	PartialSub-processors certified; Notis is not	—	—	—None; 'working toward SOC 2' (FAQ)
Plans & support
Free plan does the product's main job	Partial	—		—14-day trial only, card required
Shared team workspace		—	—	—Single-user plans; enterprise on request
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	Tiers not collected	FreeLucas Pro$16/moyr (rate on a yearly commitment)+1 more	Starter€29/moPro€79/mo+2 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 long jobs on a machine of its own

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. Prio

AI chief of staff for founders and executives

An EU-hosted AI chief of staff that triages your inbox, runs your calendar and chases follow-ups, with an approval gate on everything it sends.

Best for: remembering context between conversations

Documented strengths

Where you can use it: Telegram, Slack, Email, 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 team and plan options, with nothing documented for Free plan does the product's main job and Shared team workspace.

Pricing

Starter€29/moPro€79/moBusiness€199/moEnterpriseCustom pricing

€29–€199/mo (Enterprise on request), 14-day free trial · no free tier · prio.sh

How it differs from Notis: Prio sells a focused inbox-calendar-follow-up workflow behind an approval gate, runs only on Claude from EU infrastructure, and reaches messaging channels mainly on its top tier; Notis is channel-first on WhatsApp, iMessage, Telegram, Slack, email and voice from the entry tier, with model choice across providers and an agent/CLI bridge.

Visit Prio Prio alternativesSupport score: 47% across 32 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: scheduled and event-triggered work

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. Boski

Proactive personal-goals agent

Personal agent that remembers preferences, works between conversations and checks in on progress toward goals.

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

Documented strengths

Where you can use it: WhatsApp, iMessage, Email, 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 and SMS or a phone number.

Pricing

Tiers not collected

$5.00/week, charged weekly (Stripe web checkout); 5,000 credits per one-week allowance period; no monthly or annual price published · no free tier · boski.com

How it differs from Notis: Proactive personal-goal assistant with eight built-in apps and recurring check-ins.

Visit Boski Boski alternativesSupport score: 39% across 31 checked rows out of 33

Questions about this comparison

Which of Prio, Lucas or Boski scores highest in the evidence checked so far?

Prio, with 47% across 32 checked rows out of 33. Lucas scores 42% across 32 checked rows out of 33 and Boski scores 39% across 31 checked rows out of 33.

How much do they cost?

Prio: €29–€199/mo (Enterprise on request), 14-day free trial; 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; Boski: $5.00/week, charged weekly (Stripe web checkout); 5,000 credits per one-week allowance period; no monthly or annual price published. These prices are not directly comparable, so we do not rank them.

Which of them can I try for free?

Lucas has a free tier and Prio and Boski do not.

Which of them work in Email?

Prio and Boski do. Lucas 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 Prio: Prio sells a focused inbox-calendar-follow-up workflow behind an approval gate, runs only on Claude from EU infrastructure, and reaches messaging channels mainly on its top tier; Notis is channel-first on WhatsApp, iMessage, Telegram, Slack, email and voice from the entry tier, with model choice across providers and an agent/CLI bridge.

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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