Ace by Automat vs Arlo vs Tab

Verdict

Notis aside, Tab has the highest support score, 73% across 13 checked rows out of 33. Ace by Automat scores 60% across 29 checked rows out of 33 and Arlo scores 50% across all 33 rows.

Their strengths differ: Tab for reaching it from the apps you already message in, Ace by Automat for keeping the product and your data under your own control and Arlo for rolling a shared assistant out to a team.

Not sure which one fits you?Find your match in two minutes

Capabilities and pricing

Scroll sideways to see every product.

Capability comparison between Notis and the selected assistants
Capability	View pricing	Ace by AutomatVisit site	ArloVisit site	TabVisit site
Where you can use it
WhatsApp
iMessage
Telegram		Not checked	—	Not checked
Slack				Not checked
Email			—	Not checked
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	Partial	Partial	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		Partial	—	Not checked
You choose which model runs your work		Partial	—	Not checked
What it can do
Ready-made app integrations	1,000+ apps	—	Partial	—
Creates and edits documents
Save your own reusable instructions		Partial	Partial	Not checked
Browses the web for you
Posts to social media for you		Not checked	Partial	Not checked
Joins and records your meetings	—	Not checked		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		Not checked
Computers it can use
Gives it a cloud computer of its own			—
Controls your own computer	Shell and apps, via the desktop app	Partial	—	Not checked
Connects to MCP servers on your computer		—	—	Not checked
Trust & control
Open source	—	—	—	Not checked
Run it on your own server	—	Partial	—	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	Workforce$1,800/moyr (rate on a yearly commitment)EnterpriseCustom pricing	FreePlus$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. Ace by Automat

AI employee for teams

An AI teammate with its own Mac, inbox and phone number that you reach on Slack, Teams, email, text, WhatsApp or a phone call, and that does the work inside the tools you already use.

Best for: keeping the product and your data under your own control

Documented strengths

Where you can use it: WhatsApp, iMessage, Slack, Email, SMS or a phone number and Voice messages
Memory: Remembers you between conversations and Reads your existing files and apps
What it can do: Creates and edits documents and Browses the web for you

The catch

The gap is messaging channels, with nothing documented for Its own iPhone or Android app.

Pricing

Workforce$1,800/moyrEnterpriseCustom pricing

Workforce: $1,800 per month billed annually ($21,600 a year) or $2,000 per month month-to-month after a 7-day free trial, no per-seat pricing. Enterprise (managed automations): custom, "scoped to the outcomes you need". · no free tier · runautomat.com

How it differs from Notis: Hired, not integrated: Ace gets a dedicated Mac, its own email, phone number and logins in your existing apps, is onboarded and managed by Automat's team, and sits on the same agentic workflow platform that runs Automat's managed enterprise automations.

Visit Ace by Automat Ace by Automat alternativesSupport score: 60% across 29 checked rows out of 33

4. Arlo

AI personal assistant you text

A personal assistant you text in iMessage, SMS or WhatsApp, or use in Slack, that makes phone calls, waits on hold, books, and uses websites with your logins.

Best for: rolling a shared assistant out to a team

Documented strengths

Where you can use it: WhatsApp, iMessage, Slack, SMS or a phone number and Voice messages
What it can do: Creates and edits documents, Browses the web for you and Joins and records your meetings
Memory: Remembers you between conversations and Reads your existing files and apps

The catch

The gap is messaging channels, with nothing documented for Telegram, Email and Its own iPhone or Android app.

Pricing

FreePlus$16.67/moyrMax$83.33/moyr

Free ($10 of usage a month) – $20/mo (Plus, $200/yr, $100 of usage) – $100/mo (Max, $1,000/yr, $500 of usage); plans differ only in included usage, no top-ups · arlo.sh

How it differs from Notis: Arlo places real outbound phone calls (menus, hold, transcript), uses websites with your saved logins and joins meetings, with usage-metered plans and no top-ups; Notis adds Telegram and email channels, CLI/MCP access for your own coding agents, and documented model choice that Arlo does not offer.

Visit Arlo Arlo alternativesSupport score: 50% across all 33 rows

Questions about this comparison

Which of Tab, Ace by Automat or Arlo scores highest in the evidence checked so far?

Tab, with 73% across 13 checked rows out of 33. Ace by Automat scores 60% across 29 checked rows out of 33 and Arlo scores 50% across all 33 rows.

How much do they cost?

Tab: Pricing not publicly disclosed; private beta and waitlist access; Ace by Automat: Workforce: $1,800 per month billed annually ($21,600 a year) or $2,000 per month month-to-month after a 7-day free trial, no per-seat pricing. Enterprise (managed automations): custom, "scoped to the outcomes you need"; Arlo: Free ($10 of usage a month) – $20/mo (Plus, $200/yr, $100 of usage) – $100/mo (Max, $1,000/yr, $500 of usage); plans differ only in included usage, no top-ups. These prices are not directly comparable, so we do not rank them.

Which of them can I try for free?

Arlo has a free tier, Ace by Automat does not and free-tier availability is not checked yet for Tab.

Which of them work in Email?

Ace by Automat does. Arlo 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

Delegate your work to Notis

Message Notis on WhatsApp, iMessage, Telegram, Slack or email, and it does the work in the apps you connect.

Start free