Ad ops and growth teams use phone farms to preview creatives, landing pages, and app-store listings on real devices in target regions — not desktop browser previews alone.
What to verify on-device
- Ad creative rendering and click-through paths
- Store listing screenshots vs live UI on local Android builds
- Geo-specific offers, language, and compliance disclaimers
- OTP or login gates during funnel tests — use real SIM when SMS is involved
Network setup
Assign egress IPs matching the market you test (one device one IP). LAN-isolate devices so environments do not cross-contaminate.
Compliance
Verification must follow advertiser and platform policies. Huicheng provides devices and SMS infrastructure only — not scripts to mislead ad networks.