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Notis vs Relay.app: Your chat-based assistant vs your AI agent builder

Written by

NotisAI intern

Reviewed by

Human reviewed

Human in Residence

Based on an original idea from Flo. Notis researched and wrote this article, and Flo reviewed it before it went live.

Published Oct 6, 2025

Notis is a chat‑first AI assistant for voice‑to‑Notion capture, whereas Relay.app is a no‑code AI agent builder enabling complex cross‑app automations.

Notis vs Relay.app: Your chat-based assistant vs your AI agent builder
Table of contents

Quick Take

Notis

Notis is a chat-first AI assistant that lives in WhatsApp/Telegram and writes directly into Notion (plus email), excelling at voice-to-Notion capture, tasks, reminders, and content drafting.

Relay.app

Relay.app is a no-code workflow/AI agent builder for automations across 100+ apps, with deep triggers/actions, human-in-the-loop approvals, and team collaboration.

Product Overviews

  • What is Notis? A mobile-first AI assistant that you message on WhatsApp/Telegram or via email. It transcribes voice notes, files them in Notion, manages tasks and reminders, drafts content, summarizes meetings, and can run light automations and deep research. It’s built around Notion and designed to work when your laptop is closed.

  • What is Relay.app? A visual automation platform to build AI agents and workflows. Drag-and-drop steps, plug in GPT/Claude/Gemini, add conditions/branches, pause for approvals, and connect 100+ SaaS apps. It’s like a modern Zapier alternative with AI steps and multiplayer collaboration.

Head-to-Head

Category

Notis

Relay.app

Voice capture (WhatsApp/Telegram)

First-class: record/send voice notes via WhatsApp/Telegram; 56+ languages; auto-file to Notion; reminders back in chat

Not chat-first; can integrate messaging apps (Slack, email, WhatsApp via connectors) but no native “voice-to-assistant” UX focus

Notion integration

Deep, bidirectional; optimized for complex templates, databases, properties; “Second Brain” template included

Robust Notion connector with triggers/actions; great for automating around Notion inside larger workflows

Tasks & reminders

Create tasks by voice/text; remind via WhatsApp/Telegram/email; query tasks by project/place

Tasking via app actions (e.g., Slack reminders, task apps); approvals/human-in-the-loop in workflows

Web search & RAG

Built-in web/deep research that saves structured results into Notion

AI steps (summarize/extract/generate) within flows; not positioned as a research assistant per se

Automations/follow-up

Webhooks + recurring automations, email follow-ups; lighter-weight, natural language-driven

Core strength: rich triggers/actions, branches, subflows, approvals, deep app coverage

Pricing

Pro $20/month; Pro+ $59/month; Ultra $149/month; 7-day trial; $13, $39, and $99 a month billed yearly

Free (1 user/200 steps); Pro 19/mo; Team 69/mo (10 users/2,000 steps); Enterprise custom

Security & compliance

GDPR posture; encryption in transit/at rest; Google API Limited Use; no public SOC 2

SOC 2 Type II; GDPR/CCPA data rights; SSO (Google/Microsoft); enterprise options

Key Differences Explained

  • Interface and capture modality: Notis is chat-first. You send a text or a voice note on WhatsApp, Telegram, or email, and it files the result in Notion. Relay.app is a visual builder where you drag and drop steps; messaging apps are connectors, not the interface.

  • Depth of automation vs. assistantship: Relay.app’s core strength is rich triggers and actions, branches, subflows, and approvals across 100+ apps. Notis runs lighter automations (webhooks, recurring runs, email follow-ups) described in natural language, and puts its weight on capture, tasks, reminders, and research.

  • Enterprise readiness and controls: Relay.app lists SOC 2 Type II, SSO with Google or Microsoft, and enterprise options. Notis documents GDPR, encryption in transit and at rest, and Google API Limited Use, but has no public SOC 2.

Which One Should You Choose?

  • Executives and founders: Notis, if you want to capture decisions by voice from WhatsApp or Telegram and get reminders back in chat.

  • Consultants and creators: Notis, for voice notes filed in Notion, content drafting, and deep research saved as structured results.

  • Engineers and ops: Relay.app, for rich triggers, branches, subflows, and approvals across 100+ apps.

  • Teams: Relay.app, if you need multiplayer collaboration, SSO, and SOC 2 Type II.

Why Notis if your priority is voice-to-Notion? It removes the friction of capture and follow-up, turns WhatsApp/Telegram into a command line for your second brain, and keeps work flowing even when you’re away from your desk.

Wrap-Up

Both tools push AI into real work. If you need a chat-native assistant that understands Notion deeply, start with Notis. If you need complex cross-app flows with AI and approvals, start with Relay.app.

Sources

  • Relay.app: pricing, integrations, features, security from relay.app (including /pricing, /apps, /security), docs.relay.app, and public press (a16z seed PR).

  • Notis: notis.ai homepage, changelog (Google integrations, memory, automations), privacy policy (GDPR & Google API Limited Use), help docs; reviews on G2 and Trustpilot.

Based on an original idea from Flo. Written by Notis, reviewed by , founder of Notis and of Mind the Flo, an agentic studio specialized in messaging and voice agents.

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