Fireflies.ai vs Viktor vs Zapier Agents

Historical comparison. Zapier Agents is winding down.

Verdict

Notis aside, Fireflies.ai has the highest support score, 55% across all 33 rows. Viktor scores 53% across all 33 rows and Zapier Agents scores 39% across 32 checked rows out of 33.

Their strengths differ: Fireflies.ai for keeping the product and your data under your own control, Viktor for remembering context between conversations and Zapier Agents for rolling a shared assistant out to a team.

Notis, Fireflies.ai and Zapier Agents tie for the cheapest way in at $0, and only Fireflies.ai and Zapier Agents have a free plan that does the product's main job.

None of them documents Open source.

Only Notis documents WhatsApp, iMessage, Telegram and 4 more rows, and only Fireflies.ai documents Joins and records your meetings.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	Fireflies.aiVisit site	ViktorRead the comparison	Zapier AgentsVisit site
Where you can use it
WhatsApp		—	—Tool action, not a channel	—Not a documented channel
iMessage		—	—Not a documented channel	—Not a documented channel
Telegram		—	—Tool action, not a channel	—Not a documented channel
Slack			Vendor-published Slack app	Partial
Email		—	—No assistant email address	Not checked
SMS or a phone number	PartialInbound calls only, no SMS	—	—No provisioned phone number	—No vendor phone number
Voice messages	Voice notes + live calls		Recorded voice messages	—No voice messages to agents
Web or desktop app	Web, desktop and Home Screen app		Web app; desktop app referenced	Web app plus Chrome extension
Its own iPhone or Android app	Home Screen app on iPhone		—PWA + Shortcut, no app store listing	—No mobile app found
Bring your own AI
Runs on your own Claude plan		—	—Credit billing, no Claude sign-in	—Activity-based plans only
Runs on your own ChatGPT plan		—	—API key only, not a ChatGPT plan	—Activity-based plans only
Bring your own API key	—	—	—Credit system, not third-party keys	PartialEnterprise only, AWS Bedrock
Works inside your own coding agent			Hosted MCP server, 19 tools	PartialZapier MCP can start an agent
You choose which model runs your work			Per-task or saved model choice	—Zapier picks the model
What it can do
Ready-made app integrations	1,000+ apps		3,200+ named integrations	9,000+ apps in Zapier's directory
Creates and edits documents			Persistent Pages and Spaces	Writes to Google Docs and other apps
Save your own reusable instructions			Named, reusable, run by command	Each agent is a saved instruction set
Browses the web for you		—	Vendor-side browser, real pages	—
Posts to social media for you		—	Named LinkedIn posting actions	Posts to LinkedIn, X and Instagram
Joins and records your meetings	—		—Admin actions only, no live join	—No meeting recorder
Memory
Remembers you between conversations			Cross-thread memory, workspace-wide	—No learned memory documented
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web		OAuth-connected sources, documented flow	Drive, Notion, Confluence and more
Runs without you
Runs on a schedule or a trigger			Scheduled and triggered work	Schedule, app-event and Zap triggers
Reminds and nudges you		Partial	Partial	PartialScheduled agent that messages you
Computers it can use
Gives it a cloud computer of its own		—		—No persistent machine
Controls your own computer	Shell and apps, via the desktop app	—	—Explicitly denied, cloud-only	—Chrome extension chat only
Connects to MCP servers on your computer		—	—MCP server is remote/hosted only	—Remote MCP servers only
Trust & control
Open source	—	—	—No repository or licence published	—Closed product; only dev tooling is open
Run it on your own server	—	Partial	—Hosted only, no install path	—Hosted at agents.zapier.com only
Says it will not train on your data	Covers Notis and its LLM providers		Covers Viktor and model providers	Partial
Published security certification	PartialSub-processors certified; Notis is not		SOC 2 Type 1; ISO 27001 in progress	SOC 2 Type II and SOC 3
Plans & support
Free plan does the product's main job	Partial		—Trial credits only, not ongoing	Agents Free: 400 activities/mo
Shared team workspace			Shared workspace credits, no per-seat	Organization sharing on Enterprise only
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	FreePro$10/user/moyr (rate on a yearly commitment)+2 more	Team$50/moEnterpriseCustom pricing	Agents Freeyr (rate on a yearly commitment)Agents Pro$33.33/moyr (rate on a yearly commitment)+1 more

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, 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. Fireflies.ai

AI meeting notetaker

An AI meeting notetaker that records your calls, runs saved AI skills on them, and answers questions in Slack, your inbox or your coding agent.

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

Documented strengths

What it can do: Ready-made app integrations, Creates and edits documents, Save your own reusable instructions and Joins and records your meetings
Where you can use it: Slack, 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 connected tools, with nothing documented for Browses the web for you and Posts to social media for you.

Pricing

FreePro$10/user/moyrBusiness$19/user/moyrEnterprise$39/user/mo

Free–$39 per seat/month (Pro $10, Business $19, Enterprise $39, all billed annually; Pro $18 and Business $29 monthly) · fireflies.ai

How it differs from Notis: Fireflies starts from recorded conversations and pushes them into your CRM, Slack and inbox; Notis starts from the message you send it and reaches a much wider tool layer.

Visit Fireflies.ai Fireflies.ai alternativesSupport score: 55% across all 33 rows

3. 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: remembering context between conversations

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

4. Zapier Agents

AI agent builder for work across apps

Zapier's standalone agent builder, now being folded into AI by Zapier steps: prompt-defined agents that work across 9,000+ apps on command or on a trigger.

Best for: rolling a shared assistant out to a team

Documented strengths

What it can do: Ready-made app integrations, Creates and edits documents, Save your own reusable instructions and Posts to social media for you
Plans & support: Free plan does the product's main job and Shared team workspace
Memory: Reads your existing files and apps

The catch

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

Pricing

Agents FreeyrAgents Pro$33.33/moyrAgents EnterpriseCustom pricing

Free–$50/mo (Agents Free 400 activities; Agents Pro $50/mo monthly or $33.33/mo billed annually for 1,500 activities), Enterprise custom · zapier.com

How it differs from Notis: Zapier Agents runs prompt-defined agents on Zapier's 9,000+ app actions with activity-metered plans, and Zapier is now moving them into AI by Zapier steps inside Zaps; Notis is one personal assistant you message on WhatsApp, Telegram or iMessage, with no agents to configure.

Zapier Agents alternativesSupport score: 39% across 32 checked rows out of 33

Questions about this comparison

Which of Fireflies.ai, Viktor or Zapier Agents scores highest in the evidence checked so far?

Fireflies.ai, with 55% across all 33 rows. Viktor scores 53% across all 33 rows and Zapier Agents scores 39% across 32 checked rows out of 33.

How much do they cost?

Fireflies.ai: Free–$39 per seat/month (Pro $10, Business $19, Enterprise $39, all billed annually; Pro $18 and Business $29 monthly); Viktor: Free $100 in credits, then $50–$50,000/mo by credit tier; Enterprise custom; Zapier Agents: Free–$50/mo (Agents Free 400 activities; Agents Pro $50/mo monthly or $33.33/mo billed annually for 1,500 activities), Enterprise custom. Notis, Fireflies.ai and Zapier Agents all start at $0, and only Fireflies.ai and Zapier Agents have a free plan that does the product's main job.

Which of them can I try for free?

Fireflies.ai and Zapier Agents have a free tier and Viktor does not.

Which of them work in Voice messages?

Fireflies.ai and Viktor do. Zapier Agents does not.

What can none of them do?

None of them documents Open source.

Where does Notis fit in?

Notis is number 1 on this page. Against Fireflies.ai: Fireflies starts from recorded conversations and pushes them into your CRM, Slack and inbox; Notis starts from the message you send it and reaches a much wider tool layer.

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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