Concepts is a sketching and drawing app with an infinite canvas, editable vectors, layers and brush libraries. It is aimed at people who sketch and draw ideas, and it supports importing and exporting files such as PDF, PNG, PSD, SVG and DXF. The product page lists apps for iOS, Windows, Android and ChromeOS. The app is installed on the user's own device. The page does not describe whether drawings are stored locally or synchronised to a cloud service.
Concepts is published by TopHatch, Inc., whose address in the privacy policy is in Redwood City, California, United States. The policy states that user information may be transferred to the United States and applies the GDPR to users in the EEA and the United Kingdom, with standard contractual clauses for transfers. No hosting location is named. For a European organisation, the key question is whether files stay on the device or are synchronised to services hosted in the US, and this should be checked in the product documentation before use.