Zindua vs the rest.
We compare pricing and features so you can choose wisely — not because Zindua is another hosted ESP. Only Zindua adds WhatsApp OTP on the same API. Figures from public pages; verify before you buy.
Zindua ≠ Resend, SendGrid, Mailgun, Postmark, or Unosend
Those products operate (or broker) mail delivery: you verify a domain on their platform, they send from their infrastructure, and you pay them for volume. Zindua does not replace that layer. You connect Gmail, Outlook, SendGrid, Mailgun, SES, or your SMTP — plus your own WhatsApp number. We give you templates, one REST route, logs, and a DNS helper on Pro — not a global SMTP farm or warmed IP pool like a classic ESP.
If you need fully managed deliverability with no provider account, use an ESP from the table below. If you want one API for email and WhatsApp while keeping your existing accounts, use Zindua.
WhatsApp OTP built-in
Resend, SendGrid, Mailgun, Postmark, and Unosend are email-only. Zindua sends OTP and alerts on WhatsApp from the same POST /api/v1/send.
200 free WhatsApp OTP/mo
Free plan: connect your number, scan QR, send 200 OTP/mo. Email API unlocks on Pro. Competitors in this table do not offer WhatsApp OTP.
Pro: email + WhatsApp
$12.90/mo for 160k email and 20,000 WhatsApp OTP/mo. One API key, switch channel per request.
Your provider, our DX
Not a Resend clone: you keep SendGrid/Gmail/SMTP and your WhatsApp line. Zindua adds templates, i18n, multi-project keys, and one SDK — we route, we do not host your mail servers.
Collaborate on Free
2 workspace seats on Free. Pro and Team raise the cap; limits follow your plan in the dashboard.
WhatsApp OTP (free tier)
None of the email ESPs below ship WhatsApp OTP on the same product. Zindua does.
| Provider | Free WhatsApp OTP / month |
|---|---|
| Zindua | 200/mo (~7/day) |
| Unosend | — |
| Resend | — |
| SendGrid | — |
| Mailgun | — |
| Postmark | — |
Free tier email volume
Email-only comparison. Zindua Free is WhatsApp OTP; email API starts on Pro. “Emails/day” = monthly ÷ 30 (indicative).
| Provider | Free (monthly) | ≈ Emails/day |
|---|---|---|
| Zindua | Email on Pro | — |
| Unosend | 6,000/mo | ~200/day |
| Resend | 3,000/mo | ~100/day |
| SendGrid | 100/day cap | 100/day |
| Mailgun | 100/day cap | 100/day |
| Postmark | 100/mo | ~3/day |
Paid tiers (headline list prices)
Zindua Pro: 160k email + 20k WhatsApp OTP/mo. Team: unlimited on both channels (fair use). Throughput still depends on the Gmail, SMTP, or WhatsApp line you connect.
| Tier | Zindua | Unosend | Resend | SendGrid | Mailgun | Postmark |
|---|---|---|---|---|---|---|
| Entry / Pro | $12.90/mo160k email/mo20k WhatsApp/mo | Starter $8/moPro $20/mo (60k) | $20/mo50k/mo | ~$19.95/mo50k/mo | from ~$15/movolume varies | ~$15/mo10k/mo |
| Scale | Team $39/moUnlimited emailUnlimited WhatsApp | $100/mo200k/mo | $90/mo100k/mo | ~$90/mo100k/mo | ~$90/mo100k/mo | ~$50/mo50k/mo |
| Extra per 1k (typical) | Contact salesoverage TBD | ~$0.40/1k (public) | ~$0.90/1k (public) | Varies by plan | ~$1.10 to 1.80 | ~$1.20 to 1.80 |
Feature comparison
Highlights only (not exhaustive). Zindua focuses on orchestration, templates, and SDKs while you bring the sending infrastructure.
| Feature | Zindua | Unosend | Resend | SendGrid | Mailgun | Postmark |
|---|---|---|---|---|---|---|
| WhatsApp OTP API | ||||||
| Email + WhatsApp (one route) | ||||||
| Connect your WhatsApp (QR) | ||||||
| REST API | ||||||
| SMTP support | ||||||
| Email templates | ||||||
| Webhooks / events | Partial | |||||
| Analytics & tracking | ||||||
| Built-in i18n templates | ||||||
| Multi-project API keys | ||||||
| Suppression list API | ||||||
| Inbound email | ||||||
| Provider-agnostic connectors | ||||||
| DNS checklist (your zone, Pro) | ||||||
| Own hosted mail infra (ESP) | ||||||
| Dedicated IPs (typical) |
Zindua is an orchestration product: templates, API, WhatsApp OTP, and optional DNS guidance on Pro. Competitors in this table are ESPs with their own delivery network. Choose an ESP when you want them to send everything; choose Zindua when you want one developer surface on top of providers you already use.
Ready to try the numbers?
Start free with 200 WhatsApp OTP/mo. Upgrade to Pro for email (160k) + 20k WhatsApp on one API.
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