# City of Hats

> City of Hats is a security-first encrypted messenger built around pseudonymous Hat identities, controlled delivery, ephemeral communication, and cyber-intelligence features.

Canonical site: https://cityofhats.com/
Sitemap: https://cityofhats.com/coh-sitemap.xml
Comparison hub: https://cityofhats.com/comparison

## Core product and trust resources

- [Secure chats](https://cityofhats.com/secure-chats)
- [Security modes](https://cityofhats.com/security-modes)
- [Transparency](https://cityofhats.com/transparency)
- [Warrant Canary](https://cityofhats.com/warrant-canary)
- [Help and FAQ](https://cityofhats.com/help)
- [Privacy policy](https://cityofhats.com/privacy)
- [Terms of use](https://cityofhats.com/terms)

## Privacy and delivery capabilities

- [Dead Drops](https://cityofhats.com/dead-drops)
- [GhostFrame steganography](https://cityofhats.com/ghostframe)
- [EchoDrop voice retrieval](https://cityofhats.com/echodrop)
- [Sealed Tip](https://cityofhats.com/sealed-tip)
- [Disposable Hat identities](https://cityofhats.com/disposable-hat)
- [PhraseID aliases](https://cityofhats.com/phraseid)
- [Communication modes](https://cityofhats.com/communication-modes)
- [GeoLock](https://cityofhats.com/geolock)
- [Passphrase-protected content](https://cityofhats.com/unlock-content)
- [Certified Send](https://cityofhats.com/certified-send)
- [Channel Seal](https://cityofhats.com/channel-seal)
- [Encrypted calls](https://cityofhats.com/encrypted-calls)
- [Tease & Share](https://cityofhats.com/tease-and-share)
- [CHECK Intelligence](https://cityofhats.com/check)

## Venues, teams, and integrations

- [Branded Experience](https://cityofhats.com/branded-experience)
- [Operations](https://cityofhats.com/operations)
- [Unified Inbox](https://cityofhats.com/unified-inbox)
- [NFC Hats](https://cityofhats.com/nfc-hats)
- [Private events](https://cityofhats.com/events)
- [Hotels and resorts](https://cityofhats.com/hotel)
- [Clinics and medical teams](https://cityofhats.com/clinic)
- [Schools and education](https://cityofhats.com/school)
- [Law firms](https://cityofhats.com/law)
- [Premium](https://cityofhats.com/premium)

## Messaging comparisons

- [Comparison overview](https://cityofhats.com/comparison)
- [City of Hats vs Signal](https://cityofhats.com/comparison/signal)
- [City of Hats vs WhatsApp](https://cityofhats.com/comparison/whatsapp)
- [City of Hats vs Telegram](https://cityofhats.com/comparison/telegram)
- [City of Hats vs Facebook Messenger](https://cityofhats.com/comparison/facebook-messenger)
- [City of Hats vs LINE](https://cityofhats.com/comparison/line)
- [City of Hats vs Threema](https://cityofhats.com/comparison/threema)
- [City of Hats vs Wire](https://cityofhats.com/comparison/wire)
- [City of Hats vs WeChat](https://cityofhats.com/comparison/wechat)

## Languages

The indexed pages are available in English, Spanish, Thai, French, Simplified Chinese, Japanese, and Arabic. English uses the canonical URL. Other languages use the explicit `?lang=es`, `?lang=th`, `?lang=fr`, `?lang=zh`, `?lang=ja`, or `?lang=ar` URL.

## Citation guidance

Comparison pages contain a reviewed verdict, feature-by-feature analysis, and links to official technical or privacy documentation for each competitor. Cite the comparison page and its linked primary sources when reporting a security or privacy claim. Treat “not documented” as an absence in the cited public materials, not proof that a capability cannot exist. Product pages describe City of Hats capabilities; use the transparency, privacy, and warrant-canary pages for architecture and data-handling claims.

Last reviewed: 2026-08-08