Grizzly SMS vs Quackr
Grizzly SMS has the higher grade on both axes: Safety 5.5 against 5.2, and Privacy 5.8 against 5.1.
Grizzly SMS
Pay-per-code virtual numbers for SMS verification, topped up by card, e-wallet or crypto
Privacy
5.8/ 10
Fair
Safety
5.5/ 10
Fair
No ID mentioned KYC 1 Docs reviewed Full review →
Quackr
Free shared temporary numbers and paid private non-VoIP number rentals
Privacy
5.1/ 10
Caution
Safety
5.2/ 10
Caution
No ID mentioned KYC 1 Docs reviewed Full review →
Side by side
| Grizzly SMS | Quackr | |
|---|---|---|
| Category | Phone Numbers & SMS | Phone Numbers & SMS |
| KYC policy | No ID mentioned | No ID mentioned |
| Custody | N/A | N/A |
| Sign-up | Email required | Email required |
| Open source | No | No |
| Tor onion address | No | No |
| Pay with | Crypto, Card | Card, PayPal, Crypto |
| Fees | Charged only for received codes; minimum deposit $3 | Public numbers free; private number pricing not confirmed during this review |
| Founded | Not published | 2020 |
| Jurisdiction | United Kingdom | Hong Kong |
| Not available in | Legal page: access restricted for users located in the Russian Federation (from 28 July 2025) | Not published |
| Incidents on record | 0 | 0 |
| Published tests (180 days) | 0 | 0 |
Only Grizzly SMS
Runs an affiliate programme
Both
Requires emailLegal entity disclosed
Only Quackr
AML screening
Where they sit among phone numbers & sms
Questions
Is Grizzly SMS or Quackr safer?
Grizzly SMS has the higher Safety grade: Grizzly SMS 5.5, Quackr 5.2, out of 10.
Does Grizzly SMS or Quackr require KYC?
Grizzly SMS is KYC level 1 (no ID mentioned). Quackr is KYC level 1 (no ID mentioned).
Which has more incidents on record?
Grizzly SMS has 0 and Quackr has 0 documented incidents in the registry.