Grok Bot vs Manus vs Viktor

Verdict

Notis aside, Manus has the highest support score, 62% across all 33 rows. Grok Bot scores 58% across 25 checked rows out of 33 and Viktor scores 53% across all 33 rows.

Their strengths differ: Manus for remembering context between conversations, Grok Bot for working inside the apps you already use and Viktor 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 Run it on your own server.

Only Notis documents iMessage.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	Grok BotVisit site	ManusVisit site	ViktorRead the comparison
Where you can use it
WhatsApp		—	PartialBusiness API only	—Tool action, not a channel
iMessage		—	—Not offered	—Not a documented channel
Telegram		—	Official bot, no tokens	—Tool action, not a channel
Slack		—	Tag @manus in threads	Vendor-published Slack app
Email		—	Personal bot address	—No assistant email address
SMS or a phone number	PartialInbound calls only, no SMS	—	—Not offered	—No provisioned phone number
Voice messages	Voice notes + live calls		Recorded voice messages	Recorded voice messages
Web or desktop app	Web and desktop app		Web app + desktop client	Web app; desktop app referenced
Its own iPhone or Android app	—		First-party iOS/Android	—PWA + Shortcut, no app store listing
Bring your own AI
Runs on your own Claude plan		Not checked	—Manus resells its own credits	—Credit billing, no Claude sign-in
Runs on your own ChatGPT plan		Not checked	—Manus resells its own credits	—API key only, not a ChatGPT plan
Bring your own API key	—	Not checked	—No BYOK path	—Credit system, not third-party keys
Works inside your own coding agent		—	PartialRouting skill, not an MCP server	Hosted MCP server, 19 tools
You choose which model runs your work		—	PartialVendor-chosen, not user-chosen	Per-task or saved model choice
What it can do
Ready-made app integrations	1,000+ apps	Not checked	Partial75 named connectors	3,200+ named integrations
Creates and edits documents			Exports outlive the chat	Persistent Pages and Spaces
Save your own reusable instructions			Save reusable Skills	Named, reusable, run by command
Browses the web for you			Cloud + local browser	Vendor-side browser, real pages
Posts to social media for you		Not checked	Posts via browser automation	Named LinkedIn posting actions
Joins and records your meetings	—	Not checked	PartialIn-person only, not online calls	—Admin actions only, no live join
Memory
Remembers you between conversations			Persistent Projects, not learned memory	Cross-thread memory, workspace-wide
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web		Named OAuth connectors	OAuth-connected sources, documented flow
Runs without you
Runs on a schedule or a trigger			Scheduled tasks, run offline	Scheduled and triggered work
Reminds and nudges you			PartialOnly via a scheduled task	Partial
Computers it can use
Gives it a cloud computer of its own	1h/mo (Pro) to uncapped (Ultra)		Persistent cloud VM
Controls your own computer	Shell and apps, via the desktop app		Shell + apps, folder-scoped	—Explicitly denied, cloud-only
Connects to MCP servers on your computer		Not checked	—Remote MCP servers only	—MCP server is remote/hosted only
Trust & control
Open source	—	Not checked	—Closed source	—No repository or licence published
Run it on your own server	—	—	—Vendor-hosted only	—Hosted only, no install path
Says it will not train on your data	Covers Notis and its LLM providers	Partial	PartialCovers providers, not Manus itself	Covers Viktor and model providers
Published security certification	PartialSub-processors certified; Notis is not		SOC 2 Type 2, ISO 27001/27701	SOC 2 Type 1; ISO 27001 in progress
Plans & support
Free plan does the product's main job	Partial	—	—No free plan currently listed	—Trial credits only, not ongoing
Shared team workspace			Shared workspace, role model	Shared workspace credits, no per-seat
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	Cursor Pro$20/moCursor Teams$40/user/mo+3 more	Team$16.67/user/moyr (rate on a yearly commitment)Pro (4,000 credits)$20/mo+2 more	Team$50/moEnterpriseCustom pricing

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 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 connected tools, with nothing documented for Joins and records your meetings.

Pricing

FREEPRO$13/moyrPRO+$39/moyrULTRA$99/moyr

Free–$149/mo · help.notis.ai

See Notis pricingSupport score: 80% across all 33 rows

2. Manus

Autonomous general AI agent

A general-purpose AI agent with its own persistent cloud computer that plans and finishes multi-step work — research, slides, sites, data analysis — and reports back through Telegram, WhatsApp Business, Slack, LINE or email.

Best for: remembering context between conversations

Documented strengths

Where you can use it: Telegram, Slack, Email, Voice messages, Web or desktop app and Its own iPhone or Android app
What it can do: Creates and edits documents, Save your own reusable instructions, Browses the web for you and Posts to social media for you
Memory: Remembers you between conversations and Reads your existing files and apps

The catch

The gap is support for your own AI plan, with nothing documented for Runs on your own Claude plan, Runs on your own ChatGPT plan and Bring your own API key.

Pricing

Team$16.67/user/moyrPro (4,000 credits)$20/moPro (8,000 credits)$40/moPro (40,000 credits)$200/mo

$20–$200/mo (Pro tiers, 4,000–40,000 credits); Team from $20/seat/mo; no free plan currently listed · no free tier · manus.im

How it differs from Notis: Manus is optimized for autonomous project runs on its own cloud computer; Notis is optimized for continuous personal context and actions across daily channels and tools.

Visit Manus Manus alternativesSupport score: 62% across all 33 rows

3. Grok Bot

AI teammates and automation

Persistent AI teammates that work across apps on a shared cloud computer.

Best for: working inside the apps you already use

Documented strengths

What it can do: Creates and edits documents, Save your own reusable instructions and Browses the web for you
Where you can use it: 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

The catch

The gap is messaging channels, with nothing documented for WhatsApp, iMessage, Telegram, Slack, Email and SMS or a phone number.

Pricing

Cursor Pro$20/moCursor Teams$40/user/moCursor Pro+$60/moCursor Ultra$200/moCursor EnterpriseCustom pricing

Cursor Pro $20/month, Pro+ $60/month, Ultra $200/month; Teams $40/user/month; Enterprise custom. Eligible linked SuperGrok/X Premium+ or a self-serve Grok Business seat can also grant usage. Trial credit is limited; additional usage is metered. · no free tier · cursor.com

How it differs from Notis: Grok Bot combines desktop and mobile chat, shared cloud computing, reusable skills and recurring work; access comes through eligible Cursor or linked Grok subscriptions.

Visit Grok Bot Grok Bot alternativesSupport score: 58% across 25 checked rows out of 33

4. Viktor

AI employee for Slack and Microsoft Teams

An AI coworker you @mention in Slack or Microsoft Teams that connects to 3,200+ tools and hands back finished work — reports, spreadsheets, decks, code — built in its own Linux sandbox.

Best for: scheduled and event-triggered work

Documented strengths

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
Where you can use it: Slack, Voice messages and Web or desktop app
Memory: Remembers you between conversations and Reads your existing files and apps

The catch

The gap is messaging channels, with nothing documented for WhatsApp, iMessage, Telegram, Email, SMS or a phone number and Its own iPhone or Android app.

Pricing

Team$50/moEnterpriseCustom pricing

Free $100 in credits, then $50–$50,000/mo by credit tier; Enterprise custom · no free tier · viktor.com

How it differs from Notis: Viktor is optimized for shared Slack work; Notis is private-by-default and available across more personal messaging and local-agent surfaces.

Visit Viktor Viktor alternativesSupport score: 53% across all 33 rows

Questions about this comparison

Which of Manus, Grok Bot or Viktor scores highest in the evidence checked so far?

Manus, with 62% across all 33 rows. Grok Bot scores 58% across 25 checked rows out of 33 and Viktor scores 53% across all 33 rows.

How much do they cost?

Manus: $20–$200/mo (Pro tiers, 4,000–40,000 credits); Team from $20/seat/mo; no free plan currently listed; Grok Bot: Cursor Pro $20/month, Pro+ $60/month, Ultra $200/month; Teams $40/user/month; Enterprise custom. Eligible linked SuperGrok/X Premium+ or a self-serve Grok Business seat can also grant usage. Trial credit is limited; additional usage is metered; Viktor: Free $100 in credits, then $50–$50,000/mo by credit tier; Enterprise custom. 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?

Manus, Grok Bot and Viktor do not have one.

Which of them work in Slack?

Manus and Viktor do. Grok Bot does not.

What can none of them do?

None of them documents Run it on your own server.

Where does Notis fit in?

Notis is number 1 on this page. Against Manus: Manus is optimized for autonomous project runs on its own cloud computer; Notis is optimized for continuous personal context and actions across daily channels and tools.

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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