Email made simple. Monitoring made smarter.
Double Zero is a clean, powerful dashboard for sending transactional emails and tracking every one of them. See who received your message, who bounced, and who opened — all from one place without digging through confusing logs.
What makes Double Zero worth launching.
Each person who receives an email gets their own status record, so you can see exactly who opened, who bounced, and who unsubscribed.
See all your emails at a glance with a clean, searchable interface that shows delivery status, timing, and full content.
Send emails from any app or website using an easy API — generate a token, make a request, and you are done.
Find any email instantly by searching subject lines, recipient addresses, or delivery status across your entire history.
Open any sent email right from the dashboard to see its full content, including HTML formatting and attachments.
Send newsletters and mass emails to contact lists with personalization, unsubscribe links, and delivery tracking.
If you fit one of these, Double Zero is probably built for you.
Practical scenarios where Double Zero makes a real difference.
Know instantly when a customer's receipt email bounces so you can follow up and keep their order on track.
Make sure every password reset email actually arrives — catch bounces before your users get locked out.
Send your weekly newsletter knowing you can check exactly which subscribers received it and who bounced.
Stop guessing why emails are not arriving. Open the dashboard and see exactly what happened to each message.
Double Zero (also called 00) is an email toolkit that helps you send transactional emails — like password resets, order confirmations, and welcome messages — and then track exactly what happens to each one. It connects to your email system and gives you a simple dashboard to monitor delivery status, bounces, and opens in real time. Each recipient gets their own tracking record, so you always know who got your email and who didn't. You can search past emails, preview their content, and even send broadcasts to entire lists. Whether you run a small business, a SaaS product, or an online store, Double Zero makes managing your email flow simple.
Double Zero gives you a powerful yet simple way to send and monitor every email your business sends. Instead of juggling confusing logs or expensive tools, you get a clean dashboard that shows you everything: who received your emails, who bounced, and what went wrong. Small teams and founders love it because it removes the guesswork from email delivery — you always know what is happening with every message you send.
No per-seat pricing
Add your whole team for one flat fee.
Your data stays yours
Nothing passes through a third-party cloud.
Use your own domain
Run it on yourdomain.com with free SSL.
No terminal. No config. No docs.
Workflow automation
n8n.aurora.openzapps.com
Monitors, fixes & deploys 24/7
One platform. Every app. No surprises.
Your own private server — no shared hosting, no slowdowns.
Deploy Double Zero and as many other apps as you want — no per-app charges, ever.
Full ownership. No third-party access. Export anytime.
Unlimited apps, unlimited users, unlimited traffic. One bill.
SSL, backups, and updates run automatically behind the scenes.
Cancel anytime. Take your data with you. No questions asked.
What others charge for just the empty server.
Server costs only. Prices checked June 2026.
4 vCPU cores, 8 GB RAM, 150 GB storage
A solid place to start
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $48/mo | $29 (60%) |
| Vultr | $40/mo | $21 (53%) |
| Linode | $48/mo | $29 (60%) |
| AWS Lightsail | $84/mo | $65 (77%) |
| Google Cloud E2 | $103.45/mo | $84.45 (82%) |
8 vCPU cores, 24 GB RAM, 400 GB storage
The sweet spot for most people
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $144/mo | $95 (66%) |
| Vultr | $144/mo | $95 (66%) |
| Linode | $192/mo | $143 (74%) |
| AWS Lightsail | $164/mo | $115 (70%) |
| Google Cloud E2 | $231.17/mo | $182.17 (79%) |
16 vCPU cores, 64 GB RAM, 600 GB storage
For power users
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $384/mo | $285 (74%) |
| Vultr | $320/mo | $221 (69%) |
| Linode | $384/mo | $285 (74%) |
| AWS Lightsail | $384/mo | $285 (74%) |
| Google Cloud E2 | $474.53/mo | $375.53 (79%) |
Prices checked June 2026. Excludes taxes, credits, backups, bandwidth.
Everything you need to know about launching Double Zero on OpenZapps.
Double Zero, also called 00, is a dashboard that lets you send transactional emails and track exactly what happens to each one — who got it, who bounced, and who opened it.
Not at all! OpenZapps handles all the setup for you. Once it is launched, you just log in and start sending emails right away.
You pay OpenZapps a flat monthly fee to run Double Zero and any other apps you want. There are no surprise charges per email sent.
Yes. Your emails, contacts, and tracking data stay in your own private space. No third party sees your customer communications or email lists.
Absolutely. Through OpenZapps, you can connect your custom domain so your emails come from your own address — like hello@yourcompany.com.
Try something new — same platform, same flat price.
Start free, launch Double Zero in seconds, and cancel whenever you want — zero risk.
Plans start at $29/month. Cancel anytime.
