iOS Call Screening App Tester – US Carrier Lines Needed

We're building an iOS call-screening app and need US-based testers to verify how it performs on real carrier lines. This is straightforward manual testing — no technical setup required, no purchases needed... (Budget: $2 - $8 USD, Jobs: A/B Testing, iOS, iOS Development, Mobile App Testing, Phone Support, Test Automation, Test Proctoring, Testing / QA)