Boski vs Dimension vs Orchid

Historical comparison. Dimension is shut down or no longer current.

Verdict

Notis aside, Orchid has the highest support score, 56% across 18 checked rows out of 33. Boski scores 39% across 31 checked rows out of 33 and Dimension scores 38% across 32 checked rows out of 33.

Their strengths differ: Orchid for keeping the product and your data under your own control, Boski for remembering context between conversations and Dimension for scheduled and event-triggered work.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	BoskiVisit site	DimensionVisit site	OrchidVisit site
Where you can use it
WhatsApp			—	—
iMessage
Telegram		—	—Historical: No Telegram bot documented	—
Slack		—		—
Email			—	—
SMS or a phone number	PartialInbound calls only, no SMS	—	—
Voice messages	Voice notes + live calls
Web or desktop app	Web and desktop app
Its own iPhone or Android app	—	Partial	—	—
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	—	Not checked
What it can do
Ready-made app integrations	1,000+ apps	—	Partial	—
Creates and edits documents				Not checked
Save your own reusable instructions		—
Browses the web for you		Not checked	—	Not checked
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
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	1h/mo (Pro) to uncapped (Ultra)	—	—	Not checked
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	Not checked
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	—	Partial	Partial
Plans & support
Free plan does the product's main job	Partial	—	Partial	—
Shared team workspace		—	—	Not checked
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	Tiers not collected	Discontinued	Paid subscription$29.99/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 long jobs on a machine of its own

Documented strengths

Where you can use it: WhatsApp, iMessage, Telegram, Slack, Email, Voice messages and Web or desktop 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: 80% across all 33 rows

2. Orchid

AI personal assistant over messaging

A personal assistant you text through iMessage or SMS for inbox triage, scheduling, meeting preparation, reminders and reusable workflows.

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

Documented strengths

Where you can use it: iMessage, SMS or a phone number, 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 WhatsApp, Telegram, Slack, Email and Its own iPhone or Android app.

Pricing

Paid subscription$29.99/mo

From $29.99/mo; flat paid subscription. No general free trial; targeted student, YC and migration offers. · no free tier · orchid.ai

How it differs from Notis: Orchid centers on an iMessage or SMS thread, connected inbox and calendar, and approval before drafts or calendar changes go out.

Visit Orchid Orchid alternativesSupport score: 56% across 18 checked rows out of 33

3. Boski

Proactive personal-goals agent

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

Best for: remembering context between conversations

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 published guarantees about your data, with nothing documented for Open source, Run it on your own server and Published security certification.

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

4. Dimension

AI work assistant and workflow automation — discontinued

A discontinued web assistant that connected work apps, prepared briefings and ran scheduled or app-triggered workflows; Dimension shut down on 20 May 2026.

Best for: scheduled and event-triggered work

Documented strengths

Where you can use it: iMessage, Slack, 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 WhatsApp, Telegram, Email, SMS or a phone number and Its own iPhone or Android app.

Pricing

Discontinued

Discontinued. Legacy marketing lists Free $0, Premium $29/mo, Pro $99/mo and Max $199/mo; FAQ prices conflict. · dimension.dev

How it differs from Notis: Dimension is a historical alternative and is unavailable to new buyers; its surviving documentation describes web, iMessage and Slack access and prompt-based workflows.

Dimension alternativesSupport score: 38% across 32 checked rows out of 33

Questions about this comparison

Which of Orchid, Boski or Dimension scores highest in the evidence checked so far?

Orchid, with 56% across 18 checked rows out of 33. Boski scores 39% across 31 checked rows out of 33 and Dimension scores 38% across 32 checked rows out of 33.

How much do they cost?

Orchid: From $29.99/mo; flat paid subscription. No general free trial; targeted student, YC and migration offers; Boski: $5.00/week, charged weekly (Stripe web checkout); 5,000 credits per one-week allowance period; no monthly or annual price published; Dimension: Discontinued. Legacy marketing lists Free $0, Premium $29/mo, Pro $99/mo and Max $199/mo; FAQ prices conflict. These prices are not directly comparable, so we do not rank them.

Which of them can I try for free?

Orchid and Boski do not have one and free-tier availability is not checked yet for Dimension.

Which of them work in WhatsApp?

Boski does. Orchid and Dimension do not.

Where does Notis fit in?

Notis is number 1 on this page. Against Orchid: Orchid centers on an iMessage or SMS thread, connected inbox and calendar, and approval before drafts or calendar changes go out.

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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