Pricing Database / Compare
SIGKAT vs 21Diamonds Pricing Comparison 2026
Side-by-side pricing and feature comparison. Updated daily by PulseSignal.
Pricing Comparison
SIGKAT
Free$0/monthly
Pro$29/monthly
Starting from $0/mo
21Diamonds
Free$0/monthly
Pro$49/monthly
Starting from $0/mo
Feature Comparison
| Feature | SIGKAT | 21Diamonds |
|---|---|---|
| Basic templates | ✓ | n/a |
| Team collaboration | ✓ | n/a |
| Priority support | ✓ | ✓ |
| Up to 100 emails/month | ✓ | n/a |
| A/B testing | ✓ | n/a |
| 1 domain | ✓ | n/a |
| Up to 10,000 emails/month | ✓ | n/a |
| Unlimited domains | ✓ | n/a |
| Analytics dashboard | ✓ | n/a |
| Advanced templates | ✓ | n/a |
| API access | ✓ | n/a |
| Webhooks | ✓ | n/a |
| Custom SMTP | ✓ | n/a |
| Community support | ✓ | ✓ |
| 1 project | n/a | ✓ |
| Up to 5 team members | n/a | ✓ |
| Unlimited projects | n/a | ✓ |
| Team collaboration tools | n/a | ✓ |
| Custom domains | n/a | ✓ |
| Advanced monitoring | n/a | ✓ |
| Up to 1 team member | n/a | ✓ |
Verdict
Which is cheaper?
SIGKAT
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Which has more features?
SIGKAT
SIGKAT has 14 tracked features vs 21Diamonds with 9.
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