PRODUCTS & SYSTEMS · 2014–2015 · UNVERIFIED RELEASE
The public record confirms my participation and says that HelloVoice was due to launch. It does not confirm that the service ever shipped.
An ITDaily article dated January 23, 2015 describes HelloVoice as a voice-based alarm service and names “Yoo Byungwoong and six others” as participants. Its wording is prospective: the product was scheduled for release.
What survives in the archive
Two presentation files dated October 22, 2014 contain a team introduction, product characteristics, interface screens, and detailed functions. They show that the team had developed a product presentation. They do not assign individual ownership of the screens or features.
The missing last mile
I found no store listing, deployment record, installation count, operating log, or revenue record. A later self-authored portfolio gives a more specific account of my planning role, but that is not independent confirmation, so I have left those details out here.
This is therefore not a launch story. It is a bounded record of a team project that reached a documented presentation and a planned-launch announcement, followed by an outcome I cannot verify.
Project record
Period: 2014–2015
Activity: participation in the HelloVoice team; UI and function presentation preserved
Internal evidence: two presentation files dated 2014-10-22
External validation: a preserved ITDaily article dated 2015-01-23 names me among seven participants and describes a planned launch
Final outcome: release, users, and revenue not verified
Withheld: participant details, rights-unchecked UI, and unverified claims about my exact role, target audience, or results