: Many users on Trustpilot report issues such as not receiving SMS codes after top-ups or receiving numbers that are already in use.

5sim numbers are recycled. If the app says "Number already registered," request a new number immediately. Do not proceed.

: Accepts various payment options including Visa/Mastercard, UnionPay, and e-wallets like KakaoPay or Perfect Money.

Final verdict 5sim.com is convenient and functional for low-risk, short-term verification needs and testing. Avoid for sensitive, long-term, or high-security accounts due to shared-number privacy and reliability limitations.