# How sync works

> What syncs, how fast and what happens when you edit the same note on two devices.

Source: https://helpdox.fekbd.com/docs/nimbus-mobile/sync/how-sync-works/

Nimbus syncs notes, folders, tags and attachments through our servers in the United States, encrypted in transit and at rest.

## What syncs

| Item | Free | Nimbus Plus |
| --- | --- | --- |
| Notes and folders | 2 devices | Unlimited devices |
| Attachments | 1 GB | 100 GB |
| Version history | 7 days | 1 year |

## How fast

Changes usually appear on your other devices within five seconds. On cellular data, large attachments wait for Wi-Fi unless you turn on **Sync over cellular**.

### Offline editing

Edit as much as you like without a connection. Nimbus merges your changes when you are back online.