I need a single app that runs on both iPhone and Android and blocks spam or unknown callers automatically. Whenever a call comes in, the app must check two sources in real time: • the device’s own contact list • a cloud-based “safe numbers” database I already host (REST endpoint provided) If the number appears in either source, the phone rings as normal. If not, the call is silently routed straight to voicemail. Every incoming attempt—allowed or blocked—should be logged inside the app so the user can review which numbers tried to get through. Core requirements • Native-feeling solution that complies with CallKit / Call Directory Extension on iOS and the equivalent Telephony APIs on Android so filtering keeps working even when the app is closed. • Fast, secure look-ups against my online database with a lightweight local cache for those moments the device is offline. • Simple in-app list that shows the date, time, and number for each call processed. No audio recording is needed—just the metadata. Deliverables 1. Compilable projects for both platforms with clear build instructions 2. APK and TestFlight-ready IPA for hands-on testing 3. Source code in a Git repository 4. Brief setup guide covering how to point the app at my REST endpoint and how to reset or update the local cache A call that sits in my contacts or in the online safe list must ring through; everything else must land in voicemail without any notification beyond the in-app log. Once those acceptance checks pass on both iOS and Android, the job is complete. We will charge users a fee to keep their app on the phone, they can download the app through Google play / Iphone store, and directly on our website. If the payment is declined we can turn off the application **** DO NOT CALL US ABOUT THIS PROJECT ****