SLYNUMBER

SLYNUMBER

Android Communication MobileSphere
3.9 Popularity

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System Requirements

Updated
August 13, 2025
Category
Age Rating
Everyone
Developer
Android
Android 9++
Package Name
com.dev.slynumber

So here's my take on SLYNUMBER. I've tested a bunch of second number apps and this one's pretty good overall. The features are solid and it works reliably, which is the most important thing. And the interface could use some polishing, but it's not a dealbreaker. Compared to some other options out there, SLYNUMBER seems to have more functionality without being overly complicated. Not gonna lie, I do get annoyed by the ads sometimes, but the free version is still worth it if you don't want to pay. Overall, I'd say it's a pretty good choice if you're in the market for a second phone number.

Manya Lyalya
AUTHOR: Manya Lyalya Editor, Grand Screen

Pros

  • Tons of useful features like spam blocking, call forwarding, and international calling
  • Works reliably and doesn't have issues with compatibility like some other apps
  • Free version has most of the core functionality if you don't want to pay
  • Easy to set up and start using right away

Cons

  • The interface can be a bit clunky and not the most intuitive
  • Ads can get annoying if you don't upgrade to the paid version
  • Might be overkill if you just need a basic second number
GOOGLE PLAY SCORE
3.9 /5
based on 427 reviews
Generally Favorable
77
MY SCORE
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Description

Been using SLYNUMBER for a couple months now. It’s basically a second phone number app that gives you more privacy and features than your regular number. Pretty solid if you’re into that kinda thing.

Here’s what you do: you can use SLYNUMBER for calling, texting, and even international calls. There’s also spam blocking, do-not-disturb mode, and call forwarding – those are pretty cool. And you can set up different voicemail greetings, which I’ve found handy.

Look, if you’re looking for a reliable second number, you’ll probably like SLYNUMBER. It’s not perfect – the interface can be a bit clunky at times – but overall it does the job. Worth checking out if you want more privacy and features for your mobile number.

User Reviews

Rob G October 15, 2025

App does not work. I was unable to make outbound calls, even after paying an extra $10 for extra outbound calls/texts. I emailed Customer Service twice and didn't receive a...

John Love October 15, 2025

Seems like a cash grab! I had 8 dollars and change balance but software went blank when trying to make a call. I contacted customer support. Next thing I know...

Kyle Anderton October 15, 2025

Fantastic customer service! I used this app for a second number on my business phone so I can have my personal number with me. It's so intuitive. The app works...

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