Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.

Serif records 131,023 monthly visits with +3.4% month-over-month growth and Free Trial, Paid, Contact for Pricing pricing. Whimsical records 966,895 monthly visits with -18.7% growth and Freemium pricing.
AI agents that run your email and document work
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | serif.ai | whimsical.com |
| Pricing Model | Free Trial, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 131.02K (131,023) | 966.9K (966,895) |
| MoM Traffic Delta |
| +4.26K (+3.4%) |
| -222.85K (-18.7%) |
| Primary Market & Share | 🇺🇸 United States (18.1%) | 🇮🇳 India (19%) |
|---|
| Direct Visits / mo | 44.02K | 602.36K |
|---|
| User Rating | 4.1 | 4.7 |
|---|
| Supported Platforms | Website | Website |
|---|
AI agents that run your email and document work
Agents read email threads, pull attachments, run lookups, apply your policies, and write replies automatically, covering tasks from routine answers to multi-step document chasing.
Serif requests paperwork, reads what comes back, checks it against what you actually need, and keeps following up until the file is complete — ideal for closings, claims, and intake packets.
When an agent is unsure how to proceed, it routes the job to the right person for review, so automation handles volume while judgment stays with your team.
Manage addresses like info@, support@, billing@, and closing@ from a shared inbox, with email management, autoresponders, and customer service agents built in.

The collaborative whiteboard built for product builders
AI Flowcharts, AI Mind Maps and AI Wireframes convert a short text prompt into structured, fully editable diagrams, branched mind maps, or web and mobile wireflows — no manual drawing required.
Boards host diagrams, flowcharts, mind maps, wireframes, embedded media and documents side by side, so a whole product narrative lives in a single shareable file.
Multiple teammates edit the same board simultaneously with live cursors, thread comments attached to specific objects, and mention-based notifications.
Drag-and-drop UI components let teams sketch screens, link them into clickable flows and iterate on product ideas before engineering commits to a build.
Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.


The AI productivity suite with agents, email, and docs that work wherever you do

Collaborative inbox and email management for teams
Free / Open-sourceCombines mind mapping and project workflows with AI agents, but less focused on pure visual diagramming and wireframes.

An adaptive AI work assistant that learns how you work across inboxes, calendars, chats, and apps
Robust collaborative whiteboard with strong AI diagramming tools, but less polished UI wireframing capabilities than Whimsical.

Smart, focused email with AI help — for individuals and teams

Email an AI assistant and let it run your schedules, inbox and CRM

A privacy-first email client with built-in AI writing help

An AI executive assistant that works across your inbox, calendar and meetings

Dedicated diagramming platform with strong AI chart generation, but less focus on freeform collaborative brainstorming whiteboards.
SpecialistInstantly turns natural language prompts into mind maps and flowcharts, but offers less freeform canvas drawing flexibility.
Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.
The AI productivity suite with agents, email, and docs that work wherever you do
Collaborative inbox and email management for teams
An adaptive AI work assistant that learns how you work across inboxes, calendars, chats, and apps
Robust collaborative whiteboard with strong AI diagramming tools, but less polished UI wireframing capabilities than Whimsical.
Dedicated diagramming platform with strong AI chart generation, but less focus on freeform collaborative brainstorming whiteboards.
SpecialistInstantly turns natural language prompts into mind maps and flowcharts, but offers less freeform canvas drawing flexibility.