Appfinity
SIM-specific call and SMS rules
Decide how each line handles calls and SMS: which contacts get through and which rule conditions apply (time, Wi‑Fi, and more on supported devices).
Focus & utilities
Hush
Separate your work and personal lines without turning your phone off.
- Android
- Premium
- Free trial
- Made in Amsterdam
The problem
The problem Hush solves
Most Android phones treat every incoming call and notification the same way. When you carry two SIMs, one for work and one for personal, that default behaviour stops making sense quickly. Everything arrives with the same urgency, and your brain ends up doing the sorting work instead of your phone.
Hush gives you per-SIM rules for calls, SMS, and notifications. You decide which line can interrupt you, when, for whom, and under extra conditions such as time or Wi‑Fi. Your evenings get quieter without you going dark entirely.
How it works
Per-SIM rules for calls, SMS, and notifications—each line can follow schedules plus other triggers (like Wi‑Fi or week-based patterns), so behaviour matches how you work and unwind.
Notification filtering
Reduce noise from apps on a given line during personal time. Supports dual apps and Android work profile where your device allows.
Contact allowlists
Let specific contacts through even when a line is quiet.
Unknown caller controls
Choose how your phone handles unrecognised numbers on each line.
Rules beyond a simple schedule
Per-SIM rules can combine time windows with other triggers (such as Wi‑Fi or week-based patterns), not only fixed quiet hours.
Emergency overrides
Define contacts or call patterns that always get through.
When to use it
When to use Hush
- You finish work at 6pm but your work SIM keeps buzzing with non-urgent messages.
- You want personal contacts to reach you freely, but need work calls screened after hours.
- Most of your spam calls come in on one line and you want to filter that line without affecting the other.
- You travel with a local SIM alongside your home line and want to control which one interrupts you.
Who it's for
A good fit if you...
- Use two SIMs and find evenings harder to disconnect from work.
- Want to stop unknown callers on one line without blocking known contacts.
- Want granular control over which line can interrupt you and when.
- Have tried Do Not Disturb but find it blocks too much or not enough.
- Want something that works per-SIM rather than as a blanket mute.
- Want a home-screen widget to see or toggle SIM availability alongside your rules.
FAQ
Frequently asked questions
Does Hush work with any Android phone?
Hush works on most Android devices, but some features depend on your OS version and carrier. Dual-SIM controls require a device with two active SIM slots.
Can I let emergency contacts through even when Hush is active?
Yes. You can set up an allowlist of contacts that always ring through, regardless of your other rules on that line.
Will Hush stop spam calls completely?
No app can guarantee that. Hush helps you reduce interruptions from unknown numbers and separate your lines, but spam callers change numbers frequently.
Does Hush read my messages or contacts?
Hush requests only the permissions it needs to apply call, SMS, and notification rules. It does not read message content.
What happens if I get a call on both SIMs at the same time?
Your device handles simultaneous calls based on its hardware and carrier setup. Hush applies your rules to each line independently.
Related reading
Related articles
Why dual-SIM Android feels noisy by default
Android's notification system was built for one SIM. Here's why that makes dual-SIM phones feel chaotic and what you can do about it.
Read articleThe real cost of always-on work notifications on Android
Always-on work notifications don't just interrupt you. They change how you think, rest, and recover. Here's what the research says and what to do instead.
Read articleHow to separate work and personal calls on Android
A step-by-step guide to setting up per-SIM call rules on Android so your work line goes quiet after hours without silencing your personal contacts.
Read articleReady to try it?
Install directly from Google Play. Start with a free trial — no sign-up required.
Policies
App policies
Transparency first. Read how this app handles your data and what the usage terms are.