Limitless
Limitless (formerly Rewind AI) developed an AI-powered wearable Pendant that continuously captures, transcribes, and summarizes conversations for knowledge workers and professionals. Its Developer Platform exposes Lifelogs via REST API and MCP for Claude and ChatGPT integration. The company was acquired by Meta in December 2025.
- Company typePrivate
- Founded2020
- HeadquartersDenver, United States
- Headcount51–100
- GTM typeB2C
- OfferingSoftware
What Limitless does
Limitless (formerly Rewind AI) is a Denver-based, US-remote software and hardware company that built an AI-powered wearable Pendant for continuous, always-on audio capture, transcription, and summarization of real-world conversations. Captured audio is processed via third-party AI providers and stored as searchable, exportable 'Lifelogs' that surface through a companion iOS/Android mobile app, desktop/web app, and a public Developer Platform (REST API at api.limitless.ai plus an MCP server at api.limitless.ai/mcp that connects to Anthropic's Claude and OpenAI's ChatGPT Connectors). The product integrates with Gmail and Google Calendar to enrich meeting prep, transcription, and summarization, and uses Apple's Accessory Kit for secure encrypted pairing between the Pendant and the phone. Pre-acquisition, the company monetized through one-time Pendant hardware sales (priced at $99 per startupresearcher reporting and $199 per SF Standard — conflicting figures) and a recurring monthly subscription (the 'Unlimited Plan'), with secondary data-monetization rights reserved in its Privacy Policy for AI/ML/LLM training. The primary customer base was individual knowledge workers and professionals, with secondary cohorts in healthcare/clinical and developer/power-user segments.
On/about December 5, 2025, Limitless was acquired by Meta Platforms (terms undisclosed) and its team was integrated into Meta's Reality Labs wearables division. Post-acquisition, the company ceased new Pendant sales, made the Unlimited Plan free for existing customers, sunset the legacy Rewind desktop memory app (screen and audio capture disabled December 19, 2025), and withdrew service entirely from Brazil, China, the European Union, Israel, South Korea, Turkey, and the United Kingdom due to data-regulation friction; existing customers retain access to previously recorded meetings through 2026. Meta has publicly indicated that Limitless technology will underpin a future Meta-branded AI pendant (testing targeted for 2027) and an enterprise 'Wearables for Work' subscription, alongside four new smart-glasses models by end of 2026 leveraging EssilorLuxottica (Ray-Ban, Oakley) partnerships.
Pre-acquisition, Limitless had raised over $33 million in venture funding from Sam Altman, Andreessen Horowitz (a16z), First Round Capital, NEA, Alumni Ventures, Daft Capital, and Vela Partners, and operated with a small, US-remote team of approximately 19 people (listed on the About page), with no publicly disclosed revenue. The company held no formal third-party security certifications (e.g., SOC 2, ISO 27001) but relied on TLS in transit, Hardware Security Modules for storage, granular per-user retention controls, and a visible LED recording indicator as its privacy architecture.
Limitless firmographics
Firmographics- Name
- Limitless
- Legal name
- Limitless AI, Inc.
- Website
- https://limitless.ai
- Company type
- Private
- Founded year
- 2020
- Operating status
- Acquired
- Headcount range
- 51–100 employees
- Short description
- Limitless (formerly Rewind AI) developed an AI-powered wearable Pendant that continuously captures, transcribes, and summarizes conversations for knowledge workers and professionals. Its Developer Platform exposes Lifelogs via REST API and MCP for Claude and ChatGPT integration. The company was acquired by Meta in December 2025.
- Ownership category
- akta.pro rank
Limitless industry classification
Industry- Product category
- AI Wearables
- NAICS
- Software Publishers (5132)
- SIC
- Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Confidential AI & Privacy-Preserving ML (federated learning, MPC, HE, TEEs) (HDAAAKAI)
Keywords
Where Limitless is headquartered
LocationHeadquarters
- HQ city
- Denver
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Limitless business model
Business model- GTM type
- B2C
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Supply Chain, Operations, Marketing or Sales, Infrastructure
Revenue model
- Hardware sales (Pendant): One-time hardware revenue from sales of the Limitless Pendant. Discontinued for new customers as of December 5, 2025 following Meta acquisition.
- Subscription (Limitless Unlimited Plan): Recurring subscription plan for unlimited recordings/Lifelogs; previously paid, made free for all existing customers post-acquisition. Subscription auto-renewed on a month-to-month basis.
- AI training data rights: Per Privacy Policy, user content (audio, transcripts) may be used to train, develop, and improve AI/ML/large language models and to generate de-identified/aggregate data for any legal purpose.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Limitless Pendant - hardware (one-time) |
| Unit Pricing | Pay-as-you-go | Limitless Pendant - hardware (one-time) |
| Subscription | Monthly | Limitless Unlimited Plan (subscription) |
Go-to-market motion4 records
Distribution channels4 records
Marketing channels10 records
Limitless product offering
Product offeringCore offering
Limitless develops an AI-powered memory augmentation platform anchored by the Limitless Pendant, a clip-on wearable that continuously captures audio of real-world conversations and produces searchable AI transcripts and summaries (lifelogs). The platform is extended through companion iOS, Android, desktop, and web apps, plus a public Developer Platform with a REST API and Model Context Protocol (MCP) server that lets users query their lifelogs from Claude, ChatGPT, and other compatible clients. Following Meta's December 2025 acquisition, new Pendant sales have ended and the legacy Rewind desktop product is being sunset.
Product overview
Limitless (formerly Rewind AI) offers an AI-native memory augmentation platform anchored by its flagship wearable, the Limitless Pendant, which continuously captures audio of conversations and ambient speech. Captured audio is transcribed, summarized, and stored as searchable, exportable "lifelogs" that surface through the Limitless Mobile App, Desktop App, and Web App, with integrations to Gmail and Google Calendar for meeting preparation. The platform is extended externally through the Limitless Developer Platform, a REST API (api.limitless.ai) plus an MCP server that exposes lifelogs, chats, and audio to clients such as Claude and ChatGPT for Workspace; example code is provided in Python and TypeScript. Following Meta's December 5, 2025 acquisition, new Pendant sales have ended and the legacy Rewind desktop product is being sunset, while existing customers continue to receive free unlimited support through 2026.
Differentiator
Problem solved
Functional benefit
Brands
- Limitless Pendant: AI-powered wearable pendant device that records and transcribes real-world conversations and produces searchable summaries.
Products and services
- Limitless Pendant Clip-on AI wearable hardware that captures audio of real-world conversations, transcribes and summarizes them via AI, and pairs with the Limitless mobile/desktop apps to store searchable lifelogs and summaries. Targeted at individual knowledge workers and professionals; new sales ended December 5, 2025, with existing customers receiving free Unlimited Plan support through 2026.
- Limitless Developer Platform / API Public developer platform exposing a REST API (api.limitless.ai) and a Model Context Protocol (MCP) server for accessing Limitless lifelogs, chats, and audio. Enables Claude, ChatGPT for Workspace, and other MCP-compatible clients to query a user's personal memory; supports hybrid keyword/semantic search, cursor-based pagination, and audio downloads (Ogg Opus, max 2 hours per request). Targeted at developers and technical power users building personal AI integrations.
Quantifiable outcome
- $33M+ raised prior to Meta acquisition
- +3 more outcomes
Companies that use Limitless
Customer profileSegments4 records
Ideal customer profiles2 records
Limitless technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
AI capability6 records
Feature6 records
Limitless partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered flagship and core.
- Meta PlatformsflagshipMeta acquired Limitless on/about December 5, 2025, integrating the team into its Reality Labs wearables division. Limitless technology (Pendant, transcription, summarization) is the foundation for Meta's planned AI pendant (testing targeted for 2027) and 'Wearables for Work' enterprise subscription. Existing Pendant customers will be supported through 2026.
- Apple (Accessory Kit)coreLimitless uses Apple's Accessory Kit for secure authentication and encrypted transfers between the Pendant and the paired iOS device, ensuring secure data exchange.
- Google (Gmail + Google Calendar)coreLimitless integrates with Gmail and Google Calendar to import meeting events, email context, and calendar entries that power meeting preparation, transcription, and summarization features.
- Anthropic (Claude MCP)coreLimitless exposes a Model Context Protocol (MCP) server at https://api.limitless.ai/mcp that lets Claude and other MCP-compatible clients search and ask questions about the user's Lifelogs.
- OpenAI (ChatGPT MCP / Connectors)coreLimitless MCP integration is compatible with ChatGPT's Connectors feature for Pro and Workspace accounts, allowing ChatGPT to query the user's Limitless memory.
Scale indicators6 records
Recent moves6 records
Expansion highlights5 records
Limitless competitors and assessment
Company assessmentEmerging players
- Notion AI: Notion AI aggregates meeting notes, documents, and personal knowledge into a searchable AI workspace. Adjacent competitor on the 'searchable personal memory' value proposition for knowledge workers, without the hardware wearable form factor.
- Sonos / Soundcore AI-recording earbuds: Several consumer audio incumbents (Sonos, Soundcore, and others) are embedding AI recording and transcription directly into earbuds. Emerging category overlap with Limitless on always-available voice capture, with the advantage of an existing audio-wearables user base.
Direct peers
- Fireflies.ai: Fireflies.ai is an AI meeting assistant that records, transcribes, and summarizes meetings across Zoom, Teams, and Google Meet. A direct software-side competitor to Limitless on meeting memory and note-taking, targeted at the same knowledge-worker buyer.
- Otter.ai: Otter.ai provides AI meeting transcription, summarization, and searchable notes for knowledge workers. Overlaps with Limitless on the meeting-transcription/summary use case but is software-only and enterprise-focused rather than hardware-first.
- Plaud: Plaud makes the NotePin, an AI-powered voice recorder and meeting transcription device. Directly comparable to Limitless Pendant on form factor, use case (meeting transcription/summarization), and target buyer (knowledge workers and professionals).
- Humane: Humane built the AI Pin, a wearable AI device aimed at replacing smartphone-mediated tasks with always-available AI. Direct competitor to Limitless in the AI-native wearable hardware category, targeting similar knowledge-worker and prosumer early adopters.
- Bee (Bee Pioneer Edition): Bee builds an always-on AI wearable pendant for personal memory and conversation capture. Co-marketed with Limitless in Forbes' Best AI Wearables 2025, and a near-direct competitor in both form factor and personal-memory use case.
- Friend (Omi): Friend (formerly Omi) markets an always-listening AI wearable pendant. Featured alongside Limitless in Forbes' Best AI Wearables 2025 and is one of the closest comparables on hardware form factor and target audience.
Broad incumbents
- Apple: Apple provides the Accessory Kit integration used by Limitless Pendant and competes broadly through AirPods, Apple Watch, and Apple Intelligence. A broad incumbent in personal audio wearables and on-device AI for knowledge workers.
- Meta Ray-Ban / Oakley Smart Glasses: Meta's smart-glasses line (Ray-Ban Meta, Oakley Meta) is Meta's flagship AI wearable platform and the parent brand under which Limitless now operates. Broad incumbent in the AI wearables category and the most relevant strategic benchmark post-acquisition.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights6 records
Customer concentration
Limitless social profiles
Digital presenceLimitless compliance and trust
Trust signalCompliance1 record
Limitless financial estimates
Financial estimateRevenue estimate
Valuation estimate
Limitless leadership team
Management profileNumber of profiles
Profiles7 records
Limitless funding detail
Funding detailFunding overview
Funding rounds4 records
Investors11 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Limitless M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Limitless
What does Limitless do?
Limitless develops an AI-powered memory augmentation platform anchored by the Limitless Pendant, a clip-on wearable that continuously captures audio of real-world conversations and produces searchable AI transcripts and summaries (lifelogs). The platform is extended through companion iOS, Android, desktop, and web apps, plus a public Developer Platform with a REST API and Model Context Protocol (MCP) server that lets users query their lifelogs from Claude, ChatGPT, and other compatible clients. Following Meta's December 2025 acquisition, new Pendant sales have ended and the legacy Rewind desktop product is being sunset.
Is Limitless a public or private company?
Limitless is a private company. It is classified as corporate owned and is currently acquired.
When was Limitless founded?
Limitless was founded in 2020. It employs 51 to 100 people.
Where is Limitless based?
Limitless is headquartered in Denver, United States, in the North America region.
How does Limitless make money?
Three revenue lines are on record. Hardware sales (Pendant) is the primary driver. The others are subscription (Limitless Unlimited Plan) and AI training data rights.
Who are Limitless's main competitors?
Emerging players on record are Notion AI and Sonos / Soundcore AI-recording earbuds. Direct peers are Fireflies.ai, Otter.ai, Plaud, Humane, Bee (Bee Pioneer Edition) and Friend (Omi). Broad incumbents are Apple and Meta Ray-Ban / Oakley Smart Glasses.
Does Limitless have an API?
Yes. REST API at api.limitless.ai exposing user data (lifelogs, chats, audio). Authentication via X-API-Key header. Endpoints include GET/DELETE /v1/lifelogs, GET/DELETE /v1/chats, and GET /v1/download-audio (returns Ogg Opus binary). Default rate limit of 180 requests per minute per API key; returns 429 with retryAfter on exceedance. While in beta, only Pendant data is supported. MCP server at https://api.limitless.ai/mcp allows connecting Limitless memory to MCP clients such as Claude and ChatGPT for Workspace. Example code is provided in Python, TypeScript/JavaScript, and curl. Developer documentation is at www.limitless.ai/developers.
What industry is Limitless in?
Limitless's product category is AI Wearables. Its primary akta.pro industry code is HDAAAKAI, Confidential AI & Privacy-Preserving ML (federated learning, MPC, HE, TEEs). Its NAICS code is 5132 and its SIC code is 7371.