Pay-per-code number rentals
VNumbr vs SMSBulk: a SMSBulk alternative
SMSBulk is a pay-per-code service that rents numbers for SMS verification across a wide range of apps. Like other services in this category it suits one-off registrations. VNumbr sells the same one-off OTP numbers, and adds permanent real-carrier lines for accounts that will need a code again later, with cryptocurrency checkout and an email-only signup.
Written and maintained by the VNumbr team · Last updated 24 September 2026
Key points
- SMSBulk: pay-per-code number rentals.
- VNumbr: real-carrier numbers you can keep, plus per-use OTP numbers, paid in crypto.
- Details such as prices change often, so check each provider directly before deciding.
Side by side
| VNumbr | SMSBulk | |
|---|---|---|
| Number type | Real mobile-carrier numbers via our carrier partner | Rented numbers for one-off codes |
| Countries | Countries shown live in the catalog | Check their current list |
| How you pay | Cryptocurrency (Cryptomus, NOWPayments) or wallet balance | Check their current payment options |
| Getting started | Email signup, pay by crypto or wallet balance | Account signup, check their current requirements |
| Keeping the number | Yes, for as long as you renew it (monthly or yearly) | Rental ends after the verification window |
| Best for | Receiving SMS and 2FA codes on a number you keep | One-off verification codes |
What SMSBulk does well
- Wide catalog of apps for one-off verification.
- Pay only for the codes you actually need.
- Quick to try for a single sign-up.
Where VNumbr fits better
Keep the number when it matters
A permanent line stays assigned to you for as long as you renew, so later codes still arrive.
OTP numbers too
If you just want a code, VNumbr's OTP numbers cover that, with a full refund if you cancel before an SMS arrives.
Real carrier sourcing
Numbers are allocated on genuine mobile networks rather than shared internet pools.
Crypto or wallet balance
Top up once and buy without re-entering payment details.
Choose SMSBulk instead when
- You need a single code for an app and will never return to that account.
- You already use it and it works for your target service.
- You prefer a service that only sells rentals.
Which should you pick: SMSBulk or VNumbr?
You need one code and never need the account again
SMSBulk or VNumbr OTP numbers both fit. Compare current prices for your app and country.
The account uses SMS two-factor authentication
Choose a number you keep. A VNumbr permanent number stays assigned to you while you renew, so later codes keep arriving.
You want to pay with cryptocurrency and sign up with just an email
VNumbr checkout is built around that. Check SMSBulk's current payment options if this matters to you.
You need voice calls or a full calling app
VNumbr numbers receive SMS only. If calling matters, an app built for it may suit you better.
Moving from SMSBulk to VNumbr
- 1Buy a number in the country your account expects.
- 2Open the account you want to move and find its phone number or security settings.
- 3Add the new number and confirm it with the SMS code that arrives in your VNumbr inbox.
- 4Only after the change is confirmed, let the old SMSBulk number lapse.
How VNumbr works
Choose a country
Pick where the number should be based. The prefix tells apps where you are.
Pay in crypto or wallet
Cryptomus, NOWPayments or your balance. Email-only signup, no ID.
Use it for verification
Enter the number where the app asks and request the SMS code.
Read it in your inbox
Messages appear in your dashboard in real time and through the API.
Common questions
Does VNumbr rent numbers per code like SMSBulk?
Yes. VNumbr's OTP numbers are billed per activation, alongside permanent numbers on monthly or yearly plans.
Which is better for two-factor authentication?
A number you keep, since 2FA codes keep arriving for as long as the account exists.
Are both refundable?
Refund rules differ by provider. VNumbr refunds an OTP activation in full if you cancel before an SMS arrives; see the refund policy.
Should I use SMSBulk and VNumbr together?
Many people do. A per-use or app-based service can cover a quick one-off, while a VNumbr permanent number covers accounts that need codes again later. They are not mutually exclusive.
Are VNumbr numbers real mobile numbers?
Yes. They are allocated on real mobile carrier networks rather than internet-based pools. Each app decides which numbers it accepts, so no provider can guarantee a result.
How do I pay and sign up at VNumbr?
Sign up with an email address, then pay with cryptocurrency through Cryptomus or NOWPayments, or from a wallet balance. No identity documents are required.
How do I switch from SMSBulk to VNumbr?
Buy a number, register it on the account you want to move, and update the verification number inside that app while your old number still works. Only then let the old one lapse.
Just need one code, not a number to keep?
This comparison is about VNumbr's permanent numbers. VNumbr also sells single-use OTP numbers billed per activation, for a one-off verification code.
More comparisons
Try a permanent number.
Crypto checkout, keep it for as long as you renew.