Suparelay vs send21
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
| Detail | 
Suparelay | 
send21 |
|---|---|---|
| What it does | Call any phone from your computer | Non-custodial crypto payment links and API for people and AI agents |
| Stage | Not given | Not given |
| Founded | Not given | Not given |
| Based in | US | Not given |
| Pricing model | Paid | Paid |
| Pricing | Calls from $0.03 per minute to $1.06 per minute depending on destination country. From $0.03/min to India, $0.04/min to China, $0.05/min to Mexico and Philippines, $0.08/min to Brazil, $0.09/min to Canada and USA, $0.18/min to Egypt, $0.24/min to Germany, $0.27/min to Nigeria, $1.06/min to Pakistan. | One fee per payment: 0.49% on $0-$10, 0.39% on $10-$50, 0.29% on $50-$100, 0.19% on $100-$500, 0.14% on $500-$2,000, 0.09% on $2,000-$10,000, 0.04% on $10,000-$50,000, 0.02% on $50,000-$100,000, 0.01% above $100,000. Minimum $0.01, maximum $100. No subscription, setup fee or monthly minimum. |
| Key features |
|
|
| What makes it different |
| Not given |
| Free plan | Not given | Not given |
| Open source | Not given | Not given |
| Platforms | Not given | Not given |
| Public API | Not given | Not given |
| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 28 −1 (down) since last check | 6 +2 (up) since last check |
| Trust Flow (Majestic) | 26 | 15 |
| Citation Flow (Majestic) | 22 | 28 |
| Referring domains (Majestic) | 85 | 35 |
4 details filled in for both companies.