Beside vs Littlebird vs Tanka AI

Verdict

Notis aside, Littlebird has the highest support score, 48% across all 33 rows. Beside scores 38% across all 33 rows and Tanka AI scores 27% across 31 checked rows out of 33.

Their strengths differ: Littlebird for rolling a shared assistant out to a team, Beside for remembering context between conversations and Tanka AI for working inside the apps you already use.

Notis, Littlebird and Tanka AI tie for the cheapest way in at $0, and only Littlebird has a free plan that does the product's main job.

None of them documents Bring your own API key or Open source.

Only Notis documents WhatsApp, iMessage, Telegram and 8 more rows.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	BesideVisit site	LittlebirdVisit site	Tanka AIVisit site
Where you can use it
WhatsApp		—Not in integrations or channels	—	—
iMessage		—Messaging is SMS, not iMessage	—	—Not named on any first-party page
Telegram		—Not among the named integrations	—	—Ingested as a source, not a channel
Slack		—Outbound notifications only	—	—
Email		—Drafts your replies; no inbound address	Partial	—
SMS or a phone number	PartialInbound calls only, no SMS	PartialInbound line only, not a command channel	—	—
Voice messages	Voice notes + live calls	Recorded voice notes, mobile only	Partial	Not checked
Web or desktop app	Web, desktop and Home Screen app	Web app; macOS client deprecated		Web app only, no downloadable client
Its own iPhone or Android app	Home Screen app on iPhone	First-party iOS/Android/iPad app		iOS + Android, both updated today
Bring your own AI
Runs on your own Claude plan		—No Anthropic account connection	—	—Not offered
Runs on your own ChatGPT plan		—No OpenAI account connection	—	—Not offered
Bring your own API key	—	—No key entry; not programmable	—	—Not offered
Works inside your own coding agent		—No MCP server, API, or SDK published		—No MCP server or agent plugin published
You choose which model runs your work		—One fixed pipeline, no model picker	—	—No model picker documented
What it can do
Ready-made app integrations	1,000+ apps	Partial17 named apps, Zapier for the rest		Partial80+ claimed; no browsable directory
Creates and edits documents		Auto-creates Notion pages per call		Documents, Meeting Notes, Databases
Save your own reusable instructions			Partial	Not checked
Browses the web for you		—Fetches your own site; no live browsing	—	—Not documented
Posts to social media for you		—Reviews Manager replies to reviews only	—	—Not documented
Joins and records your meetings	—	Manual in-person recorder, mobile only		—
Memory
Remembers you between conversations		Ask Beside AI searches all history		EverMemOS, unlimited, cross-quarter
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web	Gmail/Outlook connected for drafting		8 named sources with a documented flow
Runs without you
Runs on a schedule or a trigger				Partial
Reminds and nudges you		Daily Recap plus configurable Pulses		—
Computers it can use
Gives it a cloud computer of its own		—Hosted phone/AI backend only	—	—Not documented
Controls your own computer	Shell and apps, via the desktop app	—	—	—Clients are apps, not a local agent
Connects to MCP servers on your computer		—No MCP of any kind	Partial	—Not documented
Trust & control
Open source	—	—No repository linked anywhere	—	—No repository or licence published
Run it on your own server	—	—	Partial	—Hosted service only
Says it will not train on your data	Covers Notis and its LLM providers	Partial		PartialScoped to Google Workspace APIs only
Published security certification	PartialSub-processors certified; Notis is not	—	Partial	Partial
Plans & support
Free plan does the product's main job	Partial	—Trial only, no free tier		Partial
Shared team workspace
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	Beside plan (per seat, App Store/Google Play)$16.67/user/moyr (rate on a yearly commitment)Baseline$29.99/mo+1 more	BasicFreePlus$17/moyr (rate on a yearly commitment)+5 more	FreePlus$22.92/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. Littlebird

Screen-aware AI assistant with memory

A Mac and Windows assistant that builds a running memory from your screen, your meetings and connected apps, then answers and acts from that context.

Best for: rolling a shared assistant out to a team

Documented strengths

What it can do: Ready-made app integrations, Creates and edits documents and Joins and records your meetings
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 messaging channels, with nothing documented for WhatsApp, iMessage, Telegram, Slack and SMS or a phone number.

Pricing

BasicFreePlus$17/moyrTeam$17/user/moPower$42/moyrPro$100/moPro 12x$200/moEnterpriseCustom pricing

Free–$200/mo (Plus $20/mo or $17/mo annual; Power $50/mo or $42/mo annual; Pro $100/mo, or $200/mo with 12x usage); Team from $17/seat/mo; Enterprise custom · littlebird.ai

How it differs from Notis: Littlebird passively remembers what happens on screen and in your meetings; Notis is designed for explicit delegation and action across connected services from channels like WhatsApp, iMessage, Telegram, Slack, email and voice.

Visit Littlebird Littlebird alternativesSupport score: 48% across all 33 rows

3. Beside

AI business phone and receptionist for local businesses

A business phone line whose AI receptionist answers the calls and texts you miss, books the job, writes the summary, and pushes it into your CRM.

Best for: remembering context between conversations

Documented strengths

What it can do: Creates and edits documents, Save your own reusable instructions and Joins and records your meetings
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

The catch

The gap is published guarantees about your data, with nothing documented for Open source, Run it on your own server and Published security certification.

Pricing

Beside plan (per seat, App Store/Google Play)$16.67/user/moyrBaseline$29.99/moUnlimited$99.99/mo

$29.99-$99.99/mo flat per business, up to 20 seats (extra lines $4.99/mo each); no trial on Baseline, 7-day trial on Unlimited; a separate per-seat 'Beside plan' via App Store/Google Play is $29.99/mo or $199.99/yr (~$16.67/mo) · no free tier · help.beside.com

How it differs from Notis: Beside answers and books your customers' inbound calls and texts; Notis is a general assistant for the buyer's own personal work and cross-tool execution, reachable on channels like WhatsApp, iMessage, and Slack that Beside does not offer.

Visit Beside Beside alternativesSupport score: 38% across all 33 rows

4. Tanka AI

AI agent platform for startups with shared long-term memory (EverMemOS)

An agent platform for startup teams that turns connected chat, mail and files into one shared long-term memory (EverMemOS) its agents read, write and act from.

Best for: working inside the apps you already use

Documented strengths

Memory: Remembers you between conversations and Reads your existing files and apps
Where you can use it: Web or desktop app and Its own iPhone or Android app
Plans & support: Shared team workspace

The catch

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

Pricing

FreePlus$22.92/moyrPro$199/mo

Free–$199/mo (Plus $29/mo or $274.99/yr; Pro $199/mo) · apps.apple.com

How it differs from Notis: Tanka makes team communication itself the memory system and routes tasks between connected apps on its own; Notis is a channel-first assistant that acts across WhatsApp, iMessage, Telegram, Slack, email and voice with an execution layer across model providers.

Visit Tanka AI Tanka AI alternativesSupport score: 27% across 31 checked rows out of 33

Questions about this comparison

Which of Littlebird, Beside or Tanka AI scores highest in the evidence checked so far?

Littlebird, with 48% across all 33 rows. Beside scores 38% across all 33 rows and Tanka AI scores 27% across 31 checked rows out of 33.

How much do they cost?

Littlebird: Free–$200/mo (Plus $20/mo or $17/mo annual; Power $50/mo or $42/mo annual; Pro $100/mo, or $200/mo with 12x usage); Team from $17/seat/mo; Enterprise custom; Beside: $29.99-$99.99/mo flat per business, up to 20 seats (extra lines $4.99/mo each); no trial on Baseline, 7-day trial on Unlimited; a separate per-seat 'Beside plan' via App Store/Google Play is $29.99/mo or $199.99/yr (~$16.67/mo); Tanka AI: Free–$199/mo (Plus $29/mo or $274.99/yr; Pro $199/mo). Notis, Littlebird and Tanka AI all start at $0, and only Littlebird has a free plan that does the product's main job.

Which of them can I try for free?

Littlebird and Tanka AI have a free tier and Beside does not.

What can none of them do?

None of them documents Bring your own API key or Open source.

Where does Notis fit in?

Notis is number 1 on this page. Against Littlebird: Littlebird passively remembers what happens on screen and in your meetings; Notis is designed for explicit delegation and action across connected services from channels like WhatsApp, iMessage, Telegram, Slack, email and voice.

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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