DU Caller vs HyperCard
A side-by-side look at DU Caller and HyperCard. For an in-depth review of either product, follow the links below.
DU Caller
Security & Privacy
DU Caller is a free app that helps identify and block spam calls. It has a community-driven spam call database and can automatically block known spam numbers.
spam-call-blockingcall-identificationcommunity-reports
HyperCard
Development
HyperCard was a software application released by Apple in 1987 that allowed users to create their own hypertextual information stacks to organize data like a database and develop custom applications. It pioneered many hypermedia concepts.
hypertextdatabaseauthoringapple
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