Kin vs Kortex vs Saner.AI

Verdict

Notis aside, Saner.AI has the highest support score, 39% across 32 checked rows out of 33. Kortex scores 24% across all 33 rows and Kin scores 23% across all 33 rows.

Their strengths differ: Saner.AI for remembering context between conversations, Kortex for rolling a shared assistant out to a team and Kin for scheduled and event-triggered work.

Notis, Saner.AI, Kortex and Kin tie for the cheapest way in at $0, and only Saner.AI, Kortex and Kin have a free plan that does the product's main job.

None of them documents Joins and records your meetings, Open source or Run it on your own server.

Only Notis documents WhatsApp, iMessage, Slack and 10 more rows.

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Capabilities and pricing

Scroll sideways to see every product.

Capability comparison between Notis and the selected assistants
Capability	View pricing	KinVisit site	KortexVisit site	Saner.AIVisit site
Where you can use it
WhatsApp		—No WhatsApp channel; app-only.	—	—
iMessage		—No iMessage surface.	—No iMessage/Apple Messages surface.	—Not offered.
Telegram		—No Telegram bot published.	—No Telegram bot published.	Not checked
Slack		—No Slack app published.	—No Slack app published.	—
Email		—No inbound AI-email channel.	—No inbound assistant email address.	—
SMS or a phone number	PartialInbound calls only, no SMS	—No phone number or SMS surface.	—No phone number or SMS surface.	—No phone number or SMS access.
Voice messages	Voice notes + live calls	Voice input transcribed into chat.	Partial
Web or desktop app	Web, desktop and Home Screen app	Partial
Its own iPhone or Android app	Home Screen app on iPhone	First-party iOS app.	—
Bring your own AI
Runs on your own Claude plan		—Runs on Kin's own provider accounts.	—	—
Runs on your own ChatGPT plan		—Runs on Kin's own provider accounts.	—	—
Bring your own API key	—	—No field for your own API key.	—	Partial
Works inside your own coding agent		—No MCP server or agent plugin.	—	—
You choose which model runs your work		—No user-facing model choice.
What it can do
Ready-made app integrations	1,000+ apps	—No integrations directory; 2 apps named.	—	Partial
Creates and edits documents		—Output stays inside the app.
Save your own reusable instructions		—No saved reusable instruction sets.	—	—
Browses the web for you		—No web-browsing capability.	—	—Does not browse or act on websites.
Posts to social media for you		—No social posting.	—	—Does not post to social networks.
Joins and records your meetings	—	—No meeting bot or recorder.	—	—
Memory
Remembers you between conversations
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web	Partial
Runs without you
Runs on a schedule or a trigger		PartialFixed vendor briefing/insights only.	—
Reminds and nudges you		Custom check-in reminders.
Computers it can use
Gives it a cloud computer of its own		—	—	—
Controls your own computer	Shell and apps, via the desktop app	—No local agent or shell/app control.	—	—Cannot control your computer.
Connects to MCP servers on your computer		—No MCP mentioned in either direction.	—	—No MCP support.
Trust & control
Open source	—	—Closed source.	—	—Closed source.
Run it on your own server	—	—Vendor-operated backend only.	—	—Hosted service only.
Says it will not train on your data	Covers Notis and its LLM providers		—
Published security certification	PartialSub-processors certified; Notis is not	—No third-party attestation published.	—	—
Plans & support
Free plan does the product's main job	Partial	Free tier runs the core product.
Shared team workspace		—Single-user personal app.	Partial	Partial
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	FreeStandard$14.17/moyr (rate on a yearly commitment)+2 more	FreeKore$10/user/moyr (rate on a yearly commitment)+2 more	Freeyr (rate on a yearly commitment)Starter$8/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. Saner.AI

AI personal assistant for notes, tasks, email and calendar

A notes and to-do app with a built-in assistant, Skai, that answers from your notes, turns emails into tasks and plans your day.

Best for: remembering context between conversations

Documented strengths

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
Runs without you: Runs on a schedule or a trigger and Reminds and nudges you

The catch

The gap is connected tools, with nothing documented for Save your own reusable instructions, Browses the web for you, Posts to social media for you and Joins and records your meetings.

Pricing

FreeyrStarter$8/moyrStandard$16/moyr

Free–$20/mo (Starter $12/mo or $8/mo billed yearly; Standard $20/mo or $16/mo billed yearly) · saner.ai

How it differs from Notis: Saner.AI keeps the assistant inside its own web and mobile app, working on your notes, tasks, synced email and calendar, but it cannot send email or act in other apps, documents no WhatsApp, iMessage, Slack, email or SMS channel, and has no MCP or computer access, unlike Notis, which you message on your own channels and which acts across your connected apps.

Visit Saner.AI Saner.AI alternativesSupport score: 39% across 32 checked rows out of 33

3. Kortex

AI note-taking and writing app (second brain)

A writing and note-taking workspace that keeps your documents, captures and highlights in one place and puts a multi-model AI chat on top of them.

Best for: rolling a shared assistant out to a team

Documented strengths

Memory: Remembers you between conversations and Reads your existing files and apps
Runs without you: Reminds and nudges you
Plans & support: Free plan does the product's main job

The catch

The gap is messaging channels, with nothing documented for WhatsApp, iMessage, Telegram, Slack, Email, SMS or a phone number and 1 more row.

Pricing

FreeKore$10/user/moyrPremium$17.50/user/moyrCustomCustom pricing

Free–$21/seat/mo (annual: $10–$17.50/seat/mo); Custom for large teams · kortex.co

How it differs from Notis: Kortex is a document editor you open and write in, with an AI chat layered on top of your own notes; Notis is a cross-channel assistant that reaches you on WhatsApp/iMessage/Telegram/Slack/email/voice and executes in external tools on your behalf.

Visit Kortex Kortex alternativesSupport score: 24% across all 33 rows

4. Kin

Personal AI advisor app

An iPhone (and, per the vendor, Android) app with five AI advisor personas that keep a persistent, on-device memory of your life and talk you through work, relationships, health and decisions.

Best for: scheduled and event-triggered work

Documented strengths

Where you can use it: Voice messages and Its own iPhone or Android app
Memory: Remembers you between conversations
Runs without you: Reminds and nudges you

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, Bring your own API key, Works inside your own coding agent and You choose which model runs your work.

Pricing

FreeStandard$14.17/moyrPremium$15.75/moyrPro$28.33/moyr

Free; $20.00–$43.99/month or $169.99–$339.99/year (App Store in-app purchases) · apps.apple.com

How it differs from Notis: Kin is a private, on-device coaching and reflection companion with no channel presence outside its own app and almost no third-party integrations; Notis is a channel-first assistant that takes action across WhatsApp/iMessage/Telegram/Slack/email/voice and connected work tools.

Visit Kin Kin alternativesSupport score: 23% across all 33 rows

Questions about this comparison

Which of Saner.AI, Kortex or Kin scores highest in the evidence checked so far?

Saner.AI, with 39% across 32 checked rows out of 33. Kortex scores 24% across all 33 rows and Kin scores 23% across all 33 rows.

How much do they cost?

Saner.AI: Free–$20/mo (Starter $12/mo or $8/mo billed yearly; Standard $20/mo or $16/mo billed yearly); Kortex: Free–$21/seat/mo (annual: $10–$17.50/seat/mo); Custom for large teams; Kin: Free; $20.00–$43.99/month or $169.99–$339.99/year (App Store in-app purchases). Notis, Saner.AI, Kortex and Kin all start at $0, and only Saner.AI, Kortex and Kin have a free plan that does the product's main job.

Which of them can I try for free?

Saner.AI, Kortex and Kin have a free tier.

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

Saner.AI and Kin do. Kortex does not.

What can none of them do?

None of them documents Joins and records your meetings, Open source or Run it on your own server.

Where does Notis fit in?

Notis is number 1 on this page. Against Saner.AI: Saner.AI keeps the assistant inside its own web and mobile app, working on your notes, tasks, synced email and calendar, but it cannot send email or act in other apps, documents no WhatsApp, iMessage, Slack, email or SMS channel, and has no MCP or computer access, unlike Notis, which you message on your own channels and which acts across your connected apps.

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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