Ace by Automat vs Martin vs Noah AI

Verdict

Notis aside, Ace by Automat has the highest support score, 60% across 29 checked rows out of 33. Martin scores 41% across all 33 rows and Noah AI scores 34% across 32 checked rows out of 33.

Their strengths differ: Ace by Automat for keeping the product and your data under your own control, Martin for remembering context between conversations and Noah AI for scheduled and event-triggered work.

The cheapest way in is Notis at Free–$149/mo, though its free plan only does part of the job.

None of them documents Bring your own API key or Open source.

Only Notis documents Runs on your own Claude plan, Runs on your own ChatGPT plan and Connects to MCP servers on your computer.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	Ace by AutomatVisit site	MartinVisit site	Noah AIVisit site
Where you can use it
WhatsApp
iMessage			—Not offered
Telegram		Not checked	—Not offered	—Not in FAQ or terms channel lists
Slack			Vendor Slack app, DM or @mention
Email			Email him and he replies	CC or write to Noah's own address
SMS or a phone number	PartialInbound calls only, no SMS		Reachable via SMS or phone call
Voice messages	Voice notes + live calls
Web or desktop app	Web, desktop and Home Screen app	Partial	Web app only, no downloadable client	Partial
Its own iPhone or Android app	Home Screen app on iPhone	—	iOS only	—"No app to download"; no store listing
Bring your own AI
Runs on your own Claude plan		—	—Not offered	—No sign-in with a Claude plan
Runs on your own ChatGPT plan		—	—	—No sign-in with a ChatGPT plan
Bring your own API key	—	—	—Not offered	—Flat $49/month, model usage included
Works inside your own coding agent		Partial	—No MCP server, SDK, or public API	—No MCP server or developer docs
You choose which model runs your work		Partial	—	—One undisclosed third-party LLM stack
What it can do
Ready-made app integrations	1,000+ apps	—	Partial3 pages, ~6 named apps	Partial9 named in FAQ; full list login-gated
Creates and edits documents			Partial	—Docs/Drive are referenced, not authored
Save your own reusable instructions		Partial		—No saved instruction sets documented
Browses the web for you			—Search only, no page interaction	—No web browsing; errands go by phone
Posts to social media for you		Not checked	—Not offered	—
Joins and records your meetings	—	Not checked	—Not offered	Not checked
Memory
Remembers you between conversations			Pro only: "Enhanced long term memory"
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web
Runs without you
Runs on a schedule or a trigger			Pro-only Background Tasks	Partial
Reminds and nudges you		Not checked
Computers it can use
Gives it a cloud computer of its own			—Not offered	—
Controls your own computer	Shell and apps, via the desktop app	Partial	—Not offered	—Nothing runs on your machine
Connects to MCP servers on your computer		—	—Not offered	—No local agent; MCP not mentioned
Trust & control
Open source	—	—	—Closed SaaS	—Closed; proprietary IP clause
Run it on your own server	—	Partial	—Hosted subscriptions only	—Hosted only via heynoah.io
Says it will not train on your data	Covers Notis and its LLM providers	Partial	Partial	—Not stated (checked 2026-09-02)
Published security certification	PartialSub-processors certified; Notis is not		—	—
Plans & support
Free plan does the product's main job	Partial	—	—Trial only, no ongoing free plan	—Paid only: $49/month, invitation-gated
Shared team workspace			—Single-person subscriptions only	Partial
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	Workforce$1,800/moyr (rate on a yearly commitment)EnterpriseCustom pricing	Basic$21/moyr (rate on a yearly commitment)Pro$30/moyr (rate on a yearly commitment)	Early adopter$49/mo

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. 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 published guarantees about your data, with nothing documented for Open source.

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

3. Martin

AI personal assistant reachable by phone, SMS, WhatsApp, email and Slack

A personal assistant you reach by phone call, text, WhatsApp, email or Slack that runs your calendar, inbox, reminders and notes.

Best for: remembering context between conversations

Documented strengths

Where you can use it: WhatsApp, Slack, Email, SMS or a phone number, 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 connected tools, with nothing documented for Browses the web for you, Posts to social media for you and Joins and records your meetings.

Pricing

Basic$21/moyrPro$30/moyr

Basic $35/mo, $21/mo billed yearly; Pro $49/mo, $30/mo billed yearly; 7 days free · no free tier · trymartin.com

How it differs from Notis: Martin covers phone, SMS, WhatsApp, email and Slack with live voice calls and outbound calling on your behalf, but not iMessage or Telegram, and bundles one AI model per plan tier with no MCP, API-key or model-choice option, unlike Notis's channel-first, provider-agnostic execution layer.

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

4. Noah AI

AI executive assistant (scheduling and follow-ups)

An AI executive assistant you text over SMS, WhatsApp, iMessage, Slack or email to schedule meetings, send emails, set reminders and make phone calls for you.

Best for: scheduled and event-triggered work

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
Runs without you: Reminds and nudges you

The catch

The gap is connected tools, with nothing documented for Creates and edits documents, Save your own reusable instructions, Browses the web for you and Posts to social media for you.

Pricing

Early adopter$49/mo

$49/month · no free tier · heynoah.io

How it differs from Notis: Noah is a narrow executive-admin assistant (calendar, email threads you CC it on, reminders, phone calls) on one undisclosed model stack; Notis adds Telegram and a voice channel, lets you choose the model and bring your own subscription or key, and runs a far broader tool and automation layer.

Visit Noah AI Noah AI alternativesSupport score: 34% across 32 checked rows out of 33

Questions about this comparison

Which of Ace by Automat, Martin or Noah AI scores highest in the evidence checked so far?

Ace by Automat, with 60% across 29 checked rows out of 33. Martin scores 41% across all 33 rows and Noah AI scores 34% across 32 checked rows out of 33.

How much do they cost?

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"; Martin: Basic $35/mo, $21/mo billed yearly; Pro $49/mo, $30/mo billed yearly; 7 days free; Noah AI: $49/month. Notis is the cheapest way in at Free–$149/mo, though its free plan only does part of the job.

Which of them can I try for free?

Ace by Automat, Martin and Noah AI do not have one.

Which of them work in iMessage?

Ace by Automat and Noah AI do. Martin does not.

What can none of them do?

None of them documents Bring your own API key or Open source.

Where does Notis fit in?

Notis is number 1 on this page. Against Ace by Automat: 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.

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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