Manus vs Vellum vs Zo Computer

The same 33-row checklist and the same rules. Every cell shows vetted official evidence or “Not checked.”

Visit Manus Visit Vellum Visit Zo Computer Manus alternatives Vellum alternatives Zo Computer alternatives

So which one?

Notis aside, Vellum has the highest checked-evidence score: 77% across 32 vetted rows; 1 row is not checked yet. Zo Computer: 73% across 33 vetted rows (all 33) and Manus: 62% across 33 vetted rows (all 33).

They are not really after the same job, though: Vellum for keeping the product and your data under your own control, Zo Computer for running on the AI subscription you already pay for and Manus for remembering context between conversations.

Cheapest way in is a tie: Notis and Vellum all start at $0, and not one of those free plans does the product's main job.

Only Vellum publishes anything on Open source and Run it on your own server.

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The whole grid, row by row

Scroll sideways to compare every product. Feature names stay pinned.

Capability comparison between Notis and the selected assistants
Capability	View pricing	ManusVisit site	VellumVisit site	Zo ComputerVisit site
Where you can use it
WhatsApp		PartialBusiness API only	—Not a channel (checked 2026-09-02)	—Not a supported channel
iMessage		—Not offered	PartialPlugin; bring your own Photon/Linq line	PartialContested between marketing and guide
Telegram		Official bot, no tokens	Your own BotFather bot	@zo_computer_bot
Slack		Tag @manus in threads	Two-way via Socket Mode; own app	Vendor-published Slack app
Email		Personal bot address	PartialOwn AgentMail inbox; flagged; Super+	Personal Zo address
SMS or a phone number	PartialInbound calls only, no SMS	—Not offered	PartialTwilio calls / BYO SMS line	Zo-provisioned number
Voice messages	Voice notes + live calls	Recorded voice messages	Live Voice Mode + phone; push-to-talk	Recorded voice messages only
Web or desktop app	Web and desktop app	Web app + desktop client	Web app + native macOS app	Web app + Mac/Windows/Linux client
Its own iPhone or Android app	—	First-party iOS/Android	iOS (App Store) + Android (Google Play)	—
Bring your own AI
Runs on your own Claude plan		—Manus resells its own credits	PartialClaude Code via ACP, coding tasks only	Claude Code, Pro/Max plans
Runs on your own ChatGPT plan		—Manus resells its own credits	PartialCodex CLI sign-in inherited, coding only	Codex, Plus/Pro plans
Bring your own API key	—	—No BYOK path	OpenAI, Gemini, OpenRouter, Ollama	OpenAI/Anthropic/Groq-compatible
Works inside your own coding agent		PartialRouting skill, not an MCP server	—Consumes MCP; no server of its own
You choose which model runs your work		PartialVendor-chosen, not user-chosen	Profiles per workspace, chat and action	12 models across providers
What it can do
Ready-made app integrations	1,000+ apps	Partial75 named connectors	Partial10 OAuth apps; 75-skill catalogue	367 named apps, "1000+" headline
Creates and edits documents		Exports outlive the chat	Document skill saves to workspace	Files persist on the Zo computer
Save your own reusable instructions		Save reusable Skills	Custom skills; schedule or run on demand	SKILL.md folders, loaded on demand
Browses the web for you		Cloud + local browser	Sandbox headless + Chrome extension	Cloud Chromium, own session
Posts to social media for you		Posts via browser automation	Posts to X via managed OAuth	Use X tool posts/DMs
Joins and records your meetings	—	PartialIn-person only, not online calls	Not checkedNo meeting bot documented	—No meeting bot or recorder
Memory
Remembers you between conversations		Persistent Projects, not learned memory	Persistent concept wiki + background	"Improved memory" on paid plans
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web	Named OAuth connectors	Google, Notion, Outlook, GitHub, MCP	Gmail, Drive, Notion, Dropbox, Linear...
Runs without you
Runs on a schedule or a trigger		Scheduled tasks, run offline	Cron/RRULE, watchers, playbooks	Event, schedule or ask trigger
Reminds and nudges you		PartialOnly via a scheduled task	Notify-mode schedules to any channel	Proactive briefings/alerts
Computers it can use
Gives it a cloud computer of its own	1h/mo (Pro) to uncapped (Ultra)	Persistent cloud VM	1 vCPU/2 GiB free to 4 vCPU/16 GiB	4-64 cores, 32-512GB RAM by tier
Controls your own computer	Shell and apps, via the desktop app	Shell + apps, folder-scoped	Shell + apps on macOS via desktop app
Connects to MCP servers on your computer		—Remote MCP servers only	stdio local servers via desktop app	—
Trust & control
Open source	—	—Closed source	MIT; runtime, CLI, clients, gateway	—No published repo or licence
Run it on your own server	—	—Vendor-hosted only	Local Mac, own GCP VM, or any Linux host	—Hosted only; vision, not shipped
Says it will not train on your data	Covers Notis and its LLM providers	PartialCovers providers, not Manus itself	No-train pledge; collection opt-out	PartialOwn practice only, not providers
Published security certification	PartialSub-processors certified; Notis is not	SOC 2 Type 2, ISO 27001/27701	—None published (checked 2026-09-02)	—No SOC 2 / ISO / HIPAA for Zo itself
Plans & support
Free plan does the product's main job	Partial	—No free plan currently listed	PartialBase free forever; credits pay-as-you-go	—Trial, not a free plan
Shared team workspace		Shared workspace, role model	—Single-user; 'Not a team tool'	One Ultra + per-teammate Basic
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	Team$16.67/user/moyr (rate on a yearly commitment)Pro (4,000 credits)$20/mo+2 more	BaseFreeMighty$30/mo+3 more	Basic$18/moPro$64/mo+1 more

IncludedPartial— Not documentedNot checked

The catch with each one

Numbered by support score across vetted capability rows, with incomplete evidence shown on every card. Unknown rows never count as a no, and this is not a score against your answers.

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: rolling a shared assistant out to a team

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

Official evidence records a gap in published guarantees about your data: no published support for Open source and Run it on your own server.

Pricing

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

Free–$149/mo · help.notis.ai

Who should pick it

Pick Notis if rolling a shared assistant out to a team is what decides it for you. Walk away if you need open source, self-hosting or a named certification.

See what those rows cost80% across 33 vetted rows (all 33)

2. Vellum

Personal AI assistant

An open-source (MIT) personal AI assistant with its own always-on cloud machine, memory and identity, reachable from web, Mac, iPhone, Android, CLI, Telegram, Slack, email and phone.

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

Documented strengths

Where you can use it: Telegram, Slack, 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
Computers it can use: Gives it a cloud computer of its own, Controls your own computer and Connects to MCP servers on your computer

The catch

The checked gap is support for your own AI plan. Nothing published on Works inside your own coding agent.

Pricing

BaseFreeMighty$30/moCustom (from $50/mo)$50/moSuper$100/moUltra$200/mo

Free-$200/mo (Base free, Mighty $30, Super $100, Ultra $200; Custom from $50/mo) plus pay-as-you-go credits ($1 = 1 credit) · vellum.ai

Who should pick it

Vellum is the one to take when keeping the product and your data under your own control is the deciding factor. Walk away if you need to reuse an AI subscription or key you already pay for.

Our take on how it differs from Notis: Vellum gives each user a persistent cloud computer, optional self-hosting and Mac control, but no WhatsApp or team workspace; Notis is a managed messaging-first assistant with broader ready-made integrations.

Visit Vellum77% across 32 vetted rows; 1 row is not checked yet

3. Zo Computer

Personal AI cloud computer

An always-on Linux computer in the cloud with an agent living on it — reachable by text, email, Telegram, Discord or Slack — that keeps your files, runs automations and hosts what it builds.

Best for: running on the AI subscription you already pay for

Documented strengths

Where you can use it: Telegram, Slack, Email, SMS or a phone number, Voice messages and Web or desktop app
Bring your own AI: Runs on your own Claude plan, Runs on your own ChatGPT plan, Bring your own API key, Works inside your own coding agent and You choose which model runs your work
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

The catch

The documented gap is published guarantees about your data. We found no published support for Open source, Run it on your own server and Published security certification.

Pricing

Basic$18/moPro$64/moUltra$200/mo

Free 14-day trial; $18–$200/mo · no free tier · zo.computer

Who should pick it

Worth it for running on the AI subscription you already pay for — that is what Zo Computer is built around. Walk away if you need open source, self-hosting or a named certification.

Our take on how it differs from Notis: Zo is especially strong as a programmable cloud computer; Notis is more turnkey as an assistant and subscription-aware agent router.

Visit Zo Computer73% across 33 vetted rows (all 33)

4. 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

Official evidence records a gap in support for your own AI plan: no published support 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

Who should pick it

Pick Manus if remembering context between conversations is what decides it for you. Walk away if you need to reuse an AI subscription or key you already pay for.

Our take on 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 Manus62% across 33 vetted rows (all 33)

What this table does not tell you

One more thing, because a table like this can be read for more than it is worth. It counts what each product documents. It says nothing about how reliable any of them is, how fast it replies, how good its writing is, or what it does when an integration breaks on a Friday night. A lower support score can still be the better daily driver. The only way to know is to put a real week of work through both.

A dash means the capability was not documented on the official pages we checked. Not checked means the evidence is still incomplete.

Questions people ask

Which of Vellum, Zo Computer or Manus scores highest in the evidence checked so far?

Vellum, with 77% across 32 vetted rows; 1 row is not checked yet. Zo Computer: 73% across 33 vetted rows (all 33) and Manus: 62% across 33 vetted rows (all 33). Unknown rows stay out of the score, so treat this as an evidence status, not a complete market verdict.

How much do they cost?

Vellum: Free-$200/mo (Base free, Mighty $30, Super $100, Ultra $200; Custom from $50/mo) plus pay-as-you-go credits ($1 = 1 credit); Zo Computer: Free 14-day trial; $18–$200/mo; Manus: $20–$200/mo (Pro tiers, 4,000–40,000 credits); Team from $20/seat/mo; no free plan currently listed. Notis and Vellum all start at $0, and not one of those free plans does the product's main job.

Which of them can I try for free?

Vellum has a free tier and Zo Computer and Manus do not.

Which of them work in Its own iPhone or Android app?

Vellum and Manus do. Zo Computer does not.

How was this comparison put together?

We read whatever each product publishes — 188 first-party sources across 4 products — and scored all of them on the same 33 rows. Last checked 21 August 2026. A dash means the capability was not documented on the official pages we checked. Not checked means the evidence is still incomplete.

Where does Notis fit in?

At number 1, scored by the same code on the same 33 rows as everything else. Against Vellum specifically: Vellum gives each user a persistent cloud computer, optional self-hosting and Mac control, but no WhatsApp or team workspace; Notis is a managed messaging-first assistant with broader ready-made integrations.

How we checked all this

We read every product on this page against whatever it publishes — docs and pricing pages where there are any, the homepage where that is all there is — against the same 33 buyer-focused rows. A support score uses only rows with an explicit vetted state; every unchecked row remains visible and never becomes a no. Notis chose the questions and is scored by the same rule. Count the links below before you weigh a result; some vendors give us three pages and some give us one. Last checked 21 August 2026. No vendor briefings, no affiliate links, no press releases.

Sources

Spotted something out of date? These things move weekly and we would rather be corrected. Tell us at flo@mindtheflo.com and the row gets rechecked.

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