The app feels like a DOS version of a program, lol, it's so bad. The layout doesn't display properly on my phone in any mode (Samsung fold 5). When I send a text I can only see one line of typing at a time, so its so easy to make mistakes. it's pretty sad. The service itself seems good enough but the interface is terrible
Service is not the greatest. Doesn't work as described. Promises that by porting your number to SLYNUMBER, it will be recognized as a "true number" and not as voip service. This is not true. Their system doesn't automatically provide me with the monthly credit and always must call to remind customer service to update my credit. Suggest buying redpocket $12 annual plan, as it's an overall better service. no issues with them. Most likely, I will be canceling my service with Slynumber.
Verified
I don’t recommend this app…
I don’t recommend this app because it doesn’t operate like it’s supposed to… can’t make calls the way I’m supposed to. It’s not accepted but other apps….. As opposed to using your personal number… So if you want to use Google and ask for a number you can’t give them this number… It can’t be trusted as a solid use… In trying to make call it won’t allow This app has to be upgraded and worked better Too many problems we’re trying to make calls
Hooked me for a 3 month subscription. You have to buy credits in addition to the monthly charge. Took another $3. for some sort of SIM charge, that may or may not have downloaded five or six game apps that I didn't want. This is an app to avoid.
Reply from SLYNUMBER
2026.05.21
Thank you for your feedback. SLYNUMBER is a subscription-based service, and outbound usage requires credits. The eSIM feature is optional and is offered separately for mobile data services. If you experienced an issue with charges or activation, please contact our support team so we can review and assist you.
Bought to open account at Fidelity. USA number (to use outside usa) on slynumber fails completely : "We do not support internet based or landline phone numbers". I made the purchase after discussing my needs via Slynumber support email. Now lets see how sticky they are to return my 49.99 purchase of a few hous ago. Buyer beware.
Good.... but the app is glitchy. The UI is very slow and I think would benefit from prioritizing speed over animations. Also the login with Google button is broken currently.
Reply from SLYNUMBER
2026.05.21
Thank you for your feedback and for sharing your experience with SLYNUMBER. Our team is continuously working on improvements to enhance performance and stability in future updates. If you’re experiencing issues with Google sign-in, please contact our support team so we can assist you further.
I had a very bad experience with Slynumber. I used the app only for contacting recruiters to get jobs, but my accounts were suspended with a vague msg saying "suspicious action detected." I asked them for exact reason and proof, but they didn't provide any clear explanation and just kept the accounts suspended After the suspension, they also didn't refund the remaining balance in my account. I created two accounts, and both were suspended with no refund. I HIGHLY recommend NOT using Slynumber
Reply from SLYNUMBER
2026.05.21
Thank you for your feedback. SLYNUMBER provides real U.S. mobile numbers. If you experienced an issue with the service, please contact SLYNUMBER support so we can help!
