The short answer

Cloud Chats prioritize multi-device access and synchronization. Secret Chats prioritize end-to-end encryption and remain limited to participating devices. Choose based on whether you need sync or end-to-end encryption.

Key differences

FeatureCloud ChatsSecret Chats
EncryptionClient-server encryptionEnd-to-end encryption
Multi-device syncYesNo
Best forEveryday messaging across devicesSpecific conversations requiring end-to-end encryption

When Cloud Chats make sense

Use Cloud Chats when you want to continue conversations across a phone, tablet and computer or access message history and media from multiple devices. Telegram's Privacy Policy explains how Cloud Chat content is stored in encrypted form for access across devices.

When Secret Chats make sense

Secret Chats use end-to-end encryption. Keys are held by participants and the conversation is available only on participating devices. Encryption cannot protect an unlocked device or prevent the recipient from photographing the screen.

Common misunderstandings

  • Myth: every Telegram chat is end-to-end encrypted by default. Fact: Cloud Chats and Secret Chats use different models.
  • Myth: Secret Chats sync to every device. Fact: they are device-specific.
  • Myth: Secret Chats make an unlocked phone safe from inspection. Fact: device access still matters.

Official references

Independent educational guide, not an official Telegram page. Interfaces may change; verify current details with the linked sources.