Sync

Svodly works fully offline — the cloud is only needed if you have several devices, shared access to a book, or want a backup. The only cloud is the Svodly Cloud.

Third-party clouds (Yandex.Disk, Google Drive, WebDAV, Dropbox) are not supported for syncing: they have no access-control system at the Svodly level, which is needed for working together and keeping control over your data. More on why it works this way.

What the cloud gives you

• Several devices — one book on your phone, laptop and the web, with a single history.
• Shared access — several members in one book with roles.
• Backup — your data is duplicated on the server (for the web version this is the main way to restore it).

On desktop and mobile the app works in full without the cloud — the whole book is stored locally. The web version inherently requires an account (it is a service running on a server).

Connect the Svodly Cloud

1. Open Sync and tap Connect Svodly Cloud.
2. Sign in with an existing account or sign up: email and password (confirmation is a 6-digit code in an email), or with one tap via Yandex ID or Google.
3. After you sign in, Svodly will send your local book to the cloud and turn on sync. The first push takes a few seconds for a typical book.

More about the account, password recovery and deletion on the “Svodly Cloud account” page.

How it works

Svodly syncs not as a “whole file” but as small events: every create, change or delete is a separate record. Other devices apply these events on their side. Order and conflicts are resolved deterministically (hybrid logical clocks, “the last edit of a field wins”) — without any manual conflict handling.

• Auto sync — after an action the event goes to the cloud, and new events from other devices are pulled in automatically. No network — events pile up in a queue and go out at the first connection.
• Manually — the Sync now button in the “Sync” section forces an exchange immediately.
• History compaction — over time the app collapses old events into a compact snapshot. Automatically, without your involvement.

Devices and sessions

The “Sync” section shows the list of devices connected to your account. Any session can be revoked — the device will lose access to the cloud (for example, if you sold a laptop or lost a phone). The local copy of the book on the revoked device stays, but stops syncing.

What goes to the cloud

The book's contents — in their original form, protected on our side by disk and database encryption (at-rest at the infrastructure level). Traffic runs over TLS 1.3. This is not end-to-end encryption: on our server engineers can technically see the data during service operations (migrations, diagnostics), but do not do so without your consent.

Attached files (receipt photos, PDFs) do not go to the cloud yet — only their metadata syncs between devices, while the file itself stays local. More on the security model on the “Security” page.

If sync isn't running

Open “Troubleshooting” — it covers the typical causes (an expired session token, no network) and how to work around them.

Where to go next

• Svodly Cloud account — sign-up, sign-in, recovery, deletion.
• Shared access — keeping a book together with several members.
• Security — what is stored in the cloud and who can see it.