SST ▲ +4.3% - System1, Inc. $SST MapQuest Surges to No. 1 in the Apple App Store, 30 Years After Inventing Online Mapping System1's MapQuest application has climbed to the top position in Apple's App Store, marking a significant milestone three decades after the service pioneered online mapping. The achievement appears to have resonated with investors, driving the stock up 4.3% today. A return to the No. 1 ranking suggests renewed user interest in the legacy platform and could indicate growing engagement with System1's digital properties. 31-AUG-2026 09:08 AM ET