Yes, SciNote regularly performs two types of backups.
PostgreSQL relational database: this database is backed up using automatic Amazon AWS tools on a daily basis (once per day); we keep the last 7 days of daily backups and last month's weekly backups (one per each week in the past month). Additionally, we keep all monthly backups (one per each month) for 12 months.
Files: for files that are uploaded into SciNote, we use the Amazon AWS S3 service. Here, we replicate all files that are uploaded into SciNote into a separate S3 bucket in a separate location (the data center in Dublin, Ireland). The mirroring is done with no deletion, therefore, even if you remove files from SciNote they are still stored in the mirrored data center.
You can also back up your data in a human-readable form (e.g. a pdf document) by exporting data or creating reports. To learn more, please see this FAQ.