LOW ON INDUSTRY PRICING

Pricing that scales with your testing, not your mistakes

How many operations do you plan to test?

100 Operations
1002K20K1000K5000K

100 Operations / Month

0 AI Credits

2 Active Inboxes

5 Email Forwardings

Email Analysis: HTML Check & Link Check

2 SMS Inboxes

2 Webhook Apps

5 TOTP / MFA Profiles

Up to 3 Team Members

1 Workspace

Get Started

2,000 Operations / Month

10 AI Credits

5 Active Inboxes

25 Email Forwardings

Email Analysis: Everything from Free + Spam Analysis

5 SMS Inboxes

5 Webhook Apps

10 TOTP / MFA Profiles

Up to 5 Team Members

3 Workspaces

Get Started
Growth

Growth

Recommended
1499

20,000 Operations / Month

50 AI Credits

10 Active Inboxes

100 Email Forwardings

Email Analysis: Everything from Starter + Performance Score

10 SMS Inboxes

10 Webhook Apps

20 TOTP / MFA Profiles

Up to 20 Team Members

5 Workspaces

Get Started

5,000,000 Operations / Month

5,000 AI Credits

Unlimited Active Inboxes

10,000 Email Forwardings

Email Analysis: Everything from Starter + Performance Score

Unlimited SMS Inboxes

Unlimited Webhook Apps

500 TOTP / MFA Profiles

Unlimited Team Members

Unlimited Workspaces

Get Started

Free

Enjoy essential features at no cost, forever.

0

100 Operations / Month

0 AI Credits

2 Active Inboxes

5 Email Forwardings

Email Analysis: HTML Check & Link Check

2 SMS Inboxes

2 Webhook Apps

5 TOTP / MFA Profiles

Up to 3 Team Members

1 Workspace

Starter

Starter tier for basic workloads.

499

2,000 Operations / Month

10 AI Credits

5 Active Inboxes

25 Email Forwardings

Email Analysis: Everything from Free + Spam Analysis

5 SMS Inboxes

5 Webhook Apps

10 TOTP / MFA Profiles

Up to 5 Team Members

3 Workspaces

Recommended

Growth

For growing workloads with top-up support.

1499

20,000 Operations / Month

50 AI Credits

10 Active Inboxes

100 Email Forwardings

Email Analysis: Everything from Starter + Performance Score

10 SMS Inboxes

10 Webhook Apps

20 TOTP / MFA Profiles

Up to 20 Team Members

5 Workspaces

Business

Business tier.

3499

60,000 Operations / Month

200 AI Credits

50 Active Inboxes

250 Email Forwardings

Email Analysis: Everything from Starter + Performance Score

50 SMS Inboxes

10 Webhook Apps

50 TOTP / MFA Profiles

Up to 50 Team Members

10 Workspaces

Enterprise

Enterprise tier

44999

5,000,000 Operations / Month

5,000 AI Credits

Unlimited Active Inboxes

10,000 Email Forwardings

Email Analysis: Everything from Starter + Performance Score

Unlimited SMS Inboxes

Unlimited Webhook Apps

500 TOTP / MFA Profiles

Unlimited Team Members

Unlimited Workspaces

*Prices are exclusive of local taxes.

EVERY PLAN

Everything you need to start Testing. On every Plan, including Free.

"FormSubmit has made handling submissions so much smoother. The custom API routing is super useful, and the spam filtering saves us tons of time."
— Robert Fox

All Four Channels

Email Inbox · SMS Inbox · Webhook Inbox · MFA/TOTP — all included on every plan. No channel is locked behind a tier.

Real-Time Shared Inbox

Every team member sees the same inbox simultaneously — no matter which plan you're on

SMTP + API Connection

Connect via SMTP or REST API on every plan. Both methods, every plan.

HTML Preview

Browser, mobile, and email client preview on every email — included on all plans.

Public Link Generator

Share any email, webhook payload, or TOTP entry with a read-only public link — all plans.

All Four Channels

Email Inbox · SMS Inbox · Webhook Inbox · MFA/TOTP — all included on every plan. No channel is locked behind a tier.

Real-Time Shared Inbox

Every team member sees the same inbox simultaneously — no matter which plan you're on

SMTP + API Connection

Connect via SMTP or REST API on every plan. Both methods, every plan.

HTML Preview

Browser, mobile, and email client preview on every email — included on all plans.

Public Link Generator

Share any email, webhook payload, or TOTP entry with a read-only public link — all plans.

All Four Channels

Email Inbox · SMS Inbox · Webhook Inbox · MFA/TOTP — all included on every plan. No channel is locked behind a tier.

Real-Time Shared Inbox

Every team member sees the same inbox simultaneously — no matter which plan you're on

SMTP + API Connection

Connect via SMTP or REST API on every plan. Both methods, every plan.

HTML Preview

Browser, mobile, and email client preview on every email — included on all plans.

Public Link Generator

Share any email, webhook payload, or TOTP entry with a read-only public link — all plans.

Compare Plans

What's Included in Every Zunoy Sandbox Plan

Breakdown of Features
FREE FOREVER

Start Free. Stay Free. No Expiry.

The free plan isn't a trial. It doesn't expire, doesn't require a credit card, and doesn't lock you out after 14 days. It's a real plan — with real limits — for as long as you need it.

What you get on Free:

100 operations every month

2 inboxes across Email, SMS, and Webhook

5 TOTP profiles

HTML + Link Check on every email

Up to 3 team members

Chat support

When you're ready to scale — upgrade anytime. Your data stays, your configuration carries over, nothing resets.

HOW OPERATIONS WORK

One operation. One event. Across any channel.

Every email received, every SMS logged, every webhook captured, and every TOTP code generated counts as one operation. Operations are shared across all four channels — Email, SMS, Webhook, and TOTP — from one monthly pool.

Email scoring — HTML Check, Link Check, Spam Analysis, and Performance Score — does not consume operations. Scoring runs on operations already received.

Top-up:

On paid plans (Starter and above), you can purchase additional operations at any time. $1 = 1,000 operations. Top-up credits never expire within your billing cycle.

Top-up:

On paid plans (Starter and above), you can purchase additional operations at any time. $1 = 1,000 operations. Top-up credits never expire within your billing cycle.

HOW AI CREDITS WORK

✨ AI Credits power your Email's AI Score.

One AI Credit = one email analyzed for AI Score. Each analysis covers sentiment, tone, grammar, readability, and clarity — five dimensions, one credit. AI Credits are included with every paid plan and reset monthly with your billing cycle. They are separate from operations and cannot be substituted for each other.

AI Credits are not available on the Free Plan. Top-up for AI Credits is not currently available — use them on emails where AI analysis adds the most value.

WHY ZUNOY SANDBOX

Built for developers. Priced for teams.

One tool. All four channels.

Email, SMS, Webhook, and TOTP — in one workspace, one login, one place to test everything your app sends.

Real-Time Shared Inbox

Your monthly operations pool covers every channel equally. No per-channel limits. No separate quotas for email vs SMS.

Free tier that actually works

100 operations, 2 inboxes per channel, HTML and Link Check — the free plan is functional, not a demo. Use it for as long as you need.

User-first, not investor-first

No investors to impress. Prices don't change to hit growth targets. We build what you ask for.

Fair pricing. No seat traps

You pay for what you use — operations and AI Credits. Team members, workspaces, and inboxes scale with your plan. No per-seat pricing that explodes as your team grows.

Top-up when you need it

On paid plans, $1 buys 1,000 additional operations. No plan upgrade required for occasional spikes in usage.

ENTERPRISE

Testing at scale needs a different conversation.

Enterprise starts at $499/month — with 50,00,000 operations, custom retention, a 99.9% SLA, dedicated support, and a contract built around your requirements.

What Enterprise Includes:

50,00,000 operations / month

5,000 AI Credits / month

Custom email, SMS, webhook, and TOTP limits

Custom retention — beyond FIFO defaults

99.9% uptime SLA

Dedicated support team

Custom contract and NDA

RBAC + Audit Logs

Priority onboarding

Custom feature development on request

FAQ'S

The things teams actually ask about pricing

What counts as one operation?

Every email received, SMS logged, webhook captured, or TOTP code generated counts as one operation — shared across all four channels from one monthly pool.

Is the Free plan really free forever?

Yes — no credit card required, no trial expiry. Upgrade whenever your team needs more.

What happens if I go over my monthly operations?

On paid plans, top up anytime — $1 buys 1,000 additional operations, valid through your current billing cycle.

Do AI Credits work the same as operations?

No — AI Credits power email AI Scoring separately and reset monthly with your plan. They can't be swapped for operations.

Can I change plans anytime?

Yes. Upgrades and downgrades take effect immediately, and your data, inboxes, and configuration carry over.

AI OPINION

Get a Second opinion from an AI Tool

Ask ChatGPT, Claude, Gemini or Perplexity for an honest take. They'll tell you what makes Zunoy Sandbox stands out in Email an other Module Testing

GET STARTED

The right plan is the one you start with Today

Free forever on the basic plan. No credit card. No expiry. Upgrade when your team is ready.

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