UniOne VS Mailtrap: Which Email Solution Fits Your Needs?

Mailtrap is a great tool for testing emails in development. UniOne, on the other hand, is built for production, helping you deliver messages securely and reliably to real users. If you’re ready to move from testing to emailing at scale, we're here to help you find out which tool will be your best mate in future email journeys.

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UniOne vs Mailtrap: Feature Comparison

Here’s a quick summary of the main differences between UniOne and Mailtrap as email delivery platforms.

UNIONE Mailtrap
Purpose API-first transactional and marketing email service provider for production use Email testing and staging tool for development environments
Email Sending SMTP API with up to 50,000 outgoing emails per hour and HTTP API with up to 60,000,000 outgoing emails per hour SMTP API with up to 1,000 outgoing emails per hour and HTTP API (no public information about the capacity)
Deliverability High deliverability with SPF, DKIM, DMARC, custom tracking domains, and dedicated IPs as an option, available for all plans SPF, DKIM, DMARC are available for all plans, while custom tracking domains and dedicated IPs require higher tiers
Sending Streams With UniOne’s “projects” feature, you can isolate your sending streams by message type, geo, branches, or users in totally independent environments The only option is to separate “bulk” emails from the rest
Email Editor & Templates Availability 300+ customizable templates for marketing, transactional, and triggered emails, editable in an AI-powered HTML-ready drag-and-drop builder, no limits on user email templates storage Drag&drop and raw HTML editors with 2 predesigned email templates available; there’s a limit of 200 email templates per account
Analytics & Reporting Real-time webhooks, logs and exportable analytics reports for opens, clicks, conversions with up to 100 days storage for detailed data, and up to 400 days storage of aggregated data Email log retention period from 3 to 30 days, depending on the plan; webhooks provide real-time data on all actions, but click tracking may be unavailable on a free plan
Security & Compliance GDPR-compliant, two-factor authentication, Microsoft & Google OAuth, shared users permission management and activity logs on all plans, option to disable data analytics storage GDPR-compliant, ISO 27001, API key permissions; excluding email content from logging and viewing the activity logs available on Enterprise plan only
Email Validation Email Validation API to verify your subscribers before emailing them, with free credits included Not available
Support 24/7 live chat and email support, onboarding and deliverability assistance Monday-Friday ticket-based support for free and basic plans, 24/7 live chat and email support for Business and Enterprise plans
Pricing Starts at $4/month after a 4-month free trial (includes 6,000 emails/month), regular plans start at $6 for 10,000 emails/month with unlimited sending domains Free testing tier with 3,500 emails per month and 150 emails per day limits; paid plans start at $15 for 10,000 monthly emails and have limited sending domains
Purpose
UNIONE API-first transactional and marketing email service provider for production use
Mailtrap Email testing and staging tool for development environments
Email Sending
UNIONE SMTP API with up to 50,000 outgoing emails per hour and HTTP API with up to 60,000,000 outgoing emails per hour
Mailtrap SMTP API with up to 1,000 outgoing emails per hour and HTTP API (no public information about the capacity)
Deliverability
UNIONE High deliverability with SPF, DKIM, DMARC, custom tracking domains, and dedicated IPs as an option, available for all plans
Mailtrap SPF, DKIM, DMARC are available for all plans, while custom tracking domains and dedicated IPs require higher tiers
Sending Streams
UNIONE With UniOne’s “projects” feature, you can isolate your sending streams by message type, geo, branches, or users in totally independent environments
Mailtrap The only option is to separate “bulk” emails from the rest
Email Editor & Templates Availability
UNIONE 300+ customizable templates for marketing, transactional, and triggered emails, editable in an AI-powered HTML-ready drag-and-drop builder, no limits on user email templates storage
Mailtrap Drag&drop and raw HTML editors with 2 predesigned email templates available; there’s a limit of 200 email templates per account
Analytics & Reporting
UNIONE Real-time webhooks, logs and exportable analytics reports for opens, clicks, conversions with up to 100 days storage for detailed data, and up to 400 days storage of aggregated data
Mailtrap Email log retention period from 3 to 30 days, depending on the plan; webhooks provide real-time data on all actions, but click tracking may be unavailable on a free plan
Security & Compliance
UNIONE GDPR-compliant, two-factor authentication, Microsoft & Google OAuth, shared users permission management and activity logs on all plans, option to disable data analytics storage
Mailtrap GDPR-compliant, ISO 27001, API key permissions; excluding email content from logging and viewing the activity logs available on Enterprise plan only
Email Validation
UNIONE Email Validation API to verify your subscribers before emailing them, with free credits included
Mailtrap Not available
Support
UNIONE 24/7 live chat and email support, onboarding and deliverability assistance
Mailtrap Monday-Friday ticket-based support for free and basic plans, 24/7 live chat and email support for Business and Enterprise plans
Pricing
UNIONE Starts at $4/month after a 4-month free trial (includes 6,000 emails/month), regular plans start at $6 for 10,000 emails/month with unlimited sending domains
Mailtrap Free testing tier with 3,500 emails per month and 150 emails per day limits; paid plans start at $15 for 10,000 monthly emails and have limited sending domains

Key Advantages of UniOne

High deliverability
Your emails deserve to be seen. UniOne’s optimized infrastructure, authentication tools, and expert support team help you achieve consistently high deliverability, ensuring your messages reach real inboxes — not just test environments.
Easy integration
Connect in minutes, not hours. UniOne’s simple SMTP and HTTP API setup makes it easy to start sending right away, with clear documentation and real-world use cases that go beyond basic testing.
Advanced analytics
See how every single message performs. With UniOne’s webhooks, detailed logs and reporting dashboards with visualized analytics, you can track opens, clicks, and conversions to better understand audience behavior and improve your campaigns with data-driven insights.
Reliable security
Your data and emails are always protected. UniOne follows strict security standards, including SPF, DKIM, DMARC, two-factor authentication, and GDPR compliance — so you can send with confidence.
Flexible pricing
Start small and scale easily. UniOne’s transparent pricing adapts to your growth, giving you full access to all features without complicated tiers or hidden costs.
Expert support 24/7
No tickets, no waiting. UniOne’s experts are available round-the-clock via live chat or email to help you optimize deliverability, integrations, and campaign performance, no matter how many emails you send.

UniOne pricing plans

Free Trial

All features of the STANDARD PLAN plus

Starting at
$0 / month
  • 6,000 emails per month — free for your first 4 months

Get started effortlessly with UniOne and experience reliable email delivery from day one. Send onboarding flows, app notifications, transactional updates, or marketing campaigns — all included in your trial.

After the free trial, the plan continues at just $4/monthwith flexible options as you grow.

Start sending smarter, faster, and safer — no risks, just results.

Standard

Starting at
$6 / month
50 000 emails/month
  • 24/7 support via live chat and email from real experts
  • Fast and stable sending for user onboarding, password resets, and feature updates
  • Scalable bulk emails for launches, announcements, and user engagement
  • Simple integration with SMTP, API, or SDKs for Ruby, PHP, and C#
  • Works seamlessly with CRMs, analytics tools, and app management platforms
  • Strong deliverability with SPF, DKIM, DMARC, and custom tracking domains
  • Over 300 templates ready for notifications, updates, and newsletters
  • AI-powered visual editor for quick and beautiful email design
  • Real-time analytics and metrics for opens, clicks, and conversions via webhooks or dashboard
  • Smart segmentation tools with custom tags and independent project setup
  • Detailed reporting with 100 days of data storage and CSV export
  • Built-in email validation via API with free credits
  • Secure by design — two-factor authentication, OAuth for Microsoft & Google, full GDPR compliance

Extra emails beyond the included volume cost up to $0.75 per 1,000 emails. Extra messages
Plan - $/1,000
≤ 100K - $0.75
150K - $0.70
300K - $0.60
700K - $0.50
1,5M - $0.45
3M - $0.30

Extra email validations beyond the included volume cost $2 / 1,000 validations. Included validations
Plan - quantity
≤ 50K - 100
≥ 100K - 6000

INDIVIDUAL

All features of the STANDARD PLAN plus

Individual Pricing
  • Flexible email volume tailored to your project’s user activity and growth
  • Custom validation plans to keep your contact lists accurate and engagement high
  • Smooth onboarding and 24/7 priority support from our deliverability experts
  • Dedicated success manager to help you optimize campaigns and deliverability
  • Personalized consulting to ensure your emails consistently reach the inbox — not the spam folder

Get a dedicated plan that scales with your mobile app — let’s build it together!

Ready to switch to UniOne?

If you’ve outgrown Mailtrap and need more capabilities in terms of email delivery, UniOne is ready for you. Move from sandbox to real inbox with a platform built for reliable sending, powerful analytics, and easy API or SMTP integration. Migrate to UniOne for high deliverability, flexible pricing, and 24/7 expert support — everything you need to send with confidence.

What UniOne Users Are Saying

FAQ

Yes! Many teams use Mailtrap for testing emails in development and UniOne for sending them in production. Mailtrap helps you preview messages safely before launch, while UniOne provides top deliverability, reliable sending, and detailed analytics once you’re ready to go live. In terms of sending, you can also use both services simultaneously for a while, and we even recommend our users with large email volumes to migrate gradually for a smoother experience and higher delivery rates.
Absolutely. UniOne provides a robust API and SMTP interface for smooth integration with your apps, CRMs, or backend systems. You can send transactional and marketing emails, automate workflows, and track performance — all through flexible developer-friendly tools.
We believe that each email service deserves its place in terms of specific business tasks and requirements. However, while Mailtrap was primarily built for email testing during development, UniOne was particularly aimed at real-world API-first email delivery. Our team with 15+ years of experience in email automation primarily focuses on high deliverability rates, scalable infrastructure, and 24/7 support, so UniOne can ensure your messages reach users quickly and securely.
Both platforms provide insights, but in different ways. Mailtrap focuses on testing metrics like message structure, spam score, and headers validity. UniOne, on the other hand, offers full email analytics for production — including opens, clicks, bounces, and conversions — so you can measure real engagement and improve results over time.

Grow your business now

We focus on seamless, secure email delivery for real world scenarios — not just testing environments. To try out everything we offer, every new UniOne customer gets a 4-month free trial with 6,000 emails per month, so you can explore all platform’s features. Whether you’re sending transactional updates, automated notifications, or full marketing campaigns, UniOne ensures fast, reliable deliverability with 24/7 expert support whenever you need it.


When it’s time to move beyond Mailtrap and start sending at scale, you can easily upgrade to an affordable plan or request a custom offer tailored to your business and growth goals.