A. Alternatives & Old Apps
Absolutely. Many users miss the original Prefixer or similar outdated apps. PaSS is specifically built for modern Android versions (10+) and supports adding dial codes (like
*31#) automatically.Google tightened privacy rules in newer Android versions. PaSS is built from the ground up using official APIs, ensuring it remains secure and reliable without being blocked by the system.
B. Dual SIM & Call Management
Yes! You set a rule once (e.g., 'Always call Business group with SIM 2'), and the app automatically chooses the correct SIM in the background.
No, and it's not necessary. Android only allows one app at a time to act as the 'Call Redirection App'. PaSS includes all necessary features in one place to avoid conflicts.
Set Android to 'Hide number' by default. Then, create a rule in PaSS that adds the 'show number' prefix (like
*31#) for specific contacts. You stay private, except for those you trust.C. Focus Guard & Smart Triggers
Yes! This is a key feature many standard apps miss. With Focus Guard, you can set it so only people in your contact list can reach you, filtering out all other numbers and spammers.
Yes. With the built-in Focus Guard, you can instantly block incoming calls or send them to voicemail based on specific times and days.
You can link availability to your environment. For example, have PaSS ignore unknown numbers when connected to car Bluetooth, or switch to work SIM when office Wi-Fi is detected.
D. Privacy, Permissions & Pricing
Absolutely not. PaSS only 'wakes up' for a fraction of a second during a call to perform the check and then returns to a passive state immediately.
Contacts access is needed to check groups for SIM selection. Calendar access allows Focus Guard to silence your phone during meetings. Everything stays 100% local.
This is an Android security requirement. To read the network name (SSID), location permissions are mandatory. Note: PaSS does not track or store your GPS location.
No, never. PaSS is built around privacy. All rules and call history are processed and stored 100% locally on your phone.
No. Try PaSS completely free for 30 days. After that, keep the app with a one-time purchase.