The VRTCAL Demand-Path Optimization (DPO) platform analyzes how impressions are bought rather than sold. See an increase of at least 15 percent. FREE OFFER. VRTCAL is a mobile ad exchange; its privacy policy PDF links to a dedicated opt-out page at vrtcal.com/opt-out/ and also points to industry opt-out tools at NetworkAdvertising.org (including mobile-choices). If the page doesn't resolve or you want deletion of data already collected, email info@vrtcal.com, the only contact given for privacy requests. The policy text itself was not machine-readable, so the exact steps and response time are unverified.