slynumber.com

2.9
2.9 Based on 56 reviews

SLYNUMBER is the easiest way to add a second mobile number to your phone - no SIM card or new device is needed....

Unclaimed Profile
Business profile not claimed
This business hasn’t yet claimed their profile on our platform and may be unaware it's listed. As a result, their rating might not fully reflect their customer service or responsiveness.

Average Rating

2.9

/
5

56 Reviews

5 Star
45%
4 Star
0%
3 Star
2%
2 Star
4%
1 Star
50%

All Reviews

Filter Reviews

Review Time

Anais Mobarak
I use this app every day. Having a second phone number that works seamlessly is beneficial in countl

I use this app every day. Having a second phone number that works seamlessly is beneficial in countless ways for me. For example, when I need to provide a phone number to an online store to receive a discount or to a restaurant, I give them my SLYNUMBER so my primary phone number's texts don't get filled with texts and promotions I don't want. Also, the new eSIM feature has made international travel so smooth. As soon as I land, my SLYNUMBER updates my location and provides wireless connectivity, no matter the country. It has made my life 100000 times better and I couldn't recommend this app more!

5
Date of experience: Apr 01, 2026
Anais Mobarak
Amazing app

I use this app every day. Having a second phone number that works seamlessly is beneficial in countless ways for me. For example, when I need to provide a phone number to an online store to receive a discount or to a restaurant, I give them my SLYNUMBER so my primary phone number's texts don't get filled with texts and promotions I don't want. Also, the new eSIM feature has made international travel so smooth. As soon as I land, my SLYNUMBER updates my location and provides wireless connectivity, no matter the country. It has made my life 100000 times better and I couldn't recommend this app more!

5
Date of experience: Apr 01, 2026
Maeve Ryan
Great service

Great service! I use this for business all the time. The team is super responsive and helpful. Definitely recommend.

5
Date of experience: Apr 01, 2026
Luis
Very flexible and easy to set up

I travel a lot between France and Spain and it’s given me a lot of flexibility. It is very fast and I totally recommend it

5
Date of experience: Mar 27, 2026
Joao Quintanilha
I travel a lot back to Brazil and…

I travel a lot back to Brazil and Slynumber is extremely useful for me in this trips!

5
Date of experience: Mar 18, 2026
Douglas
The App is terrible the line sometime…

The App is terrible the line sometime rings, you will check the app you have missed call and chats, the customer service speaks in mystic parables. Do yourself a favor and go elsewhere.

1
Date of experience: Mar 16, 2026
Yearly Plan

They take weeks to reply- they deduct credits when receiving calls despite stating that credits are only deducted when making calls, they also deduct credits (or minutes)when you use their AI- which I've only ever used for customer service but it's useless since you have to contact them to solve anything and when you do- everything is left unsolved. Also, they don't refresh your monthly credits. Terrible customer service!

1
Date of experience: Mar 14, 2026
Just doesnt work…

I bought the monthly subscription which states you can make and receive international calls from and to the UK.Turns out the caller or called person in the US cannot hear me.I tried to re-install the eSIM but the activation code had expired.That might be a resolvable problem if they had a help desk where you can have a remote chat or talk to someone. They dont. Ive contacted their email support but no useful response yet, so my service is down. I guess i will have to cancel, walk away from the money ive sent them and try to find a better alternative. Shouldnt be difficult!

1
Date of experience: Mar 12, 2026
Joan Markovich
Service Restored. My credit card declined our annaual…

My credit card declined our annaual subscrtption payment. Customer service at Slynumber helped me to make a payment and reactivate the service.

5
Date of experience: Mar 03, 2026
Craig McKnight
I can’t find one single review that is…

I can’t find one single review that is verified. It makes your company look bad. Do you have reviews somewhere else like google reviews? I also a MAJOR RED FlLAG ON TOUR WENSITE YOU DISPLAY A FAKE NUMBER OF REVIEWS AND INCORRECT RATING FROM TEUSTPILOT. You make it inaccessible to reach trust pilots website to see making ya have to do to Trust Pilot in another window to see this low rating AND ZERO VERIFIED TEVIEWS. SHAME ON YOU !!

1
Date of experience: Feb 15, 2026

Is this your business?

Claim your business profile now and gain access to all features and respond to customer reviews.

Business Details

We use cookies to personalize your experience. By continuing to visit this website you agree to our use of cookies

More