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Android Apps > Communication > SLYNUMBER
SLYNUMBER icon

SLYNUMBER

11.6
3.81
1,140 reviews
500,000+
Downloads
Free

Second phone number to make and receive calls and texts.

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3.81 · 1,140 reviews · 500,000+ downloads

SLYNUMBER by MobileSphere offers a real second mobile number for calls and texts with strong privacy features, including spam blocking, do-not-disturb, call forwarding, and an optional eSIM for global connectivity. It shows notable rankings in the COMMUNICATION category across the US and Iran markets and boasts a growing user base, with 500,000+ total downloads and 79K in the last 30 days, along with a 3.84 rating from 1,008 reviews.

Pros & Cons

  • Real mobile numbers not based on VoIP
  • Strong privacy protections and minimal data collection
  • International calling and eSIM support for global connectivity
  • Spam blocking, do-not-disturb, and flexible call management
  • No free trial period; pricing is subscription-based with credits for outbound calls/texts
  • Requires purchasing credits for outbound usage and recurring plans may vary by region
  • Billing and plans details may require careful review before purchase (3-month and annual options)

About SLYNUMBER

SLYNUMBER is a communication app developed by MobileSphere.

Download Statistics

SLYNUMBER has been downloaded 500 thousand times. In the last 30 days, the app was downloaded 79 thousand times. It is ranked in the top 100 communication apps.

User Ratings

SLYNUMBER is rated 3.81 out of 5 stars. The rating is based on 1.1 thousand ratings.

App Information

SLYNUMBER is FREE to download. The APK download size is 63.51 MB. The latest version available is 11.6. The last update was on July 23, 2026.

Technical Requirements

SLYNUMBER requires Android 9.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play September 2022.

Description

More data about SLYNUMBER

Price Free to download
Total downloads 500 thousand
Recent downloads 79 thousand
Rating 3.81 based on 1.1 thousand ratings
Ranking Highly ranked
Version 11.6
APK size 63.5 MB
Number of libraries 0
Designed for Android 9.0+
Suitable for Everyone
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App Performance Report

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SLYNUMBER compared with similar apps

Common keywords of similar apps

Slynumber Credits Outbound Plan Blocking Disturb Added Offer Monthly Settings Inbound Additional Subscriptions Texts Primary Easy Mode Forwarding Simply Setting Include Muting Information Pricing Subscription Based Mo Billed Number Calling Mobile Privacy Phone Texting Features Call App Calls Numbers Spam Free Unlimited Text International Voip Online Works Personal

Keywords missing from this app

Business Private Sms Virtual Real Line Work Make Receive Verification Stay Whatsapp Temporary Separate Usa Choose Sideline Burner Sim Multiple Messages Service Data Wifi Connected Communication Code Esim Apps Countries

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Google Play Rating history and histogram

Rating history
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680
89
89
10
260

Downloads over time

Downloads over time
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SLYNUMBER has been downloaded 500 thousand times. Over the past 30 days, it averaged 2.6 thousand downloads per day.

Changelog of SLYNUMBER

Developer information for MobileSphere

MobileSphere

support@slynumber.com

Website

Legal name:

Address:

Phone number:

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Comments on SLYNUMBER for Android

★★★★★ Don Joe · Mar 17, 2026
This app makes claims that they do not give out VoIP numbers... which was very interesting to me upon reading... and had me curious about a few things... I rarely find an app that lets you pick a number for free... that doesn't require you to pay right away....that is a very top tier kinda service... if the call quality is good and if messages push through the notification system properly written without delay. I'm pleased to say this app has earned my 5-star rating, until further notice! Very good
★★★★★ Miller Josh · Oct 25, 2025
The app is down right now what's happening it's a good app tho it just need to come back on lie asap
★★★★★ Vit Vics · Oct 30, 2025
1 star. Does not work after latest update. I just signed up, purchased a full year and was happy that both WhatsApp and Telegram accepted the number for validation (they did NOT treat it as Virtual). However, shortly after, on 23/10, the pushed update broke the app and it no longer opens. Many other users report same. Upd 10/29 Latest Android Beta update fixed the issue without new Sly Number version. Maybe the problem was on Android side. Back to 5 stars as the app, service and price are great
★☆☆☆☆ Nitin Verma · Oct 10, 2025
The subscription amount has already been charged from my account, but when I open the SLUMBER app, it still shows “no number”. I’ve already checked my Google Play subscriptions — it’s active and payment went through successfully. Kindly help me restore or activate the number on my account as soon as possible. I’ve also attached the screenshot for your reference many times in email. I’ve re-subscribed and the app shows ‘Confirm Plan before 13 Oct 2025’ but there’s no option to confirm. Plea
★☆☆☆☆ Subhan Waheed · Dec 5, 2025
Terrible experience. 1) There was an error in processing payment 2) The app doesn't show my number 3) It doesn't allow adding the caller ID 4) It doesn't make calls. It just hangs up 5) It just doesn't work. Still waiting for the response from support team.
★☆☆☆☆ Abel SecoundSon · Oct 25, 2025
It doesn't even have an option to open the app. That is not a joke, it quite literally lets you download it and doesn't have the option to open it.

Google Play Rankings for SLYNUMBER

Top rankings

Rank Country Category List
101 United States Communication Top Grossing
64 Spain Communication Top Grossing
149 France Communication Top Grossing
117 Iran Communication Top Grossing
160 Finland Communication Top Grossing
161 Slovakia Communication Top Grossing
162 Czech Republic Communication Top Grossing
162 Denmark Communication Top Grossing
163 Belgium Communication Top Grossing
163 Netherlands Communication Top Grossing
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Ranking history in United States

Ranking history
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Technologies used by SLYNUMBER

39 permissions
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Trust & Safety: The app requests a broad set of permissions typical for a communication app, including network state, notifications, contacts, storage, camera, microphone, Bluetooth, and telephony related permissions, plus ad identifiers and in-app billing. SLYNUMBER states a privacy focus with minimal data collection beyond payment processing and features like spam blocking and do-not-disturb to help users control their communications.
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