Email APIs · side by side
SendGrid vs UniOne
Compare SendGrid, UniOne by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
100K
SendGrid
$90 / mo
Pro · 100K emails
UniOne
$44 / mo
Standard · 100K emails
Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.
Email APIs overview & pricing
| Email APIs | SendGrid | UniOne |
|---|---|---|
| Provider | Twilio | ECOMZ Holding Limited |
| Billing unit | emails | emails |
| Plan at selected usage | Pro | Standard |
| Monthly estimate | $90/mo | $44/mo |
| Workload | 100K emails | 100K emails |
| Free access | 100 emails/day (trial) | 4-month free trial with 6,000 emails/month and 100 email validations; free testing tier allows up to 100 emails/day to v |
| Published plans | Free Trial, Essentials, Pro, Premier | Free Trial, Standard, Individual |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- SendGrid
- Twilio
- UniOne
- ECOMZ Holding Limited
Billing unit
- SendGrid
- emails
- UniOne
- emails
Plan at selected usage
- SendGrid
- Pro
- UniOne
- Standard
Monthly estimate
- SendGrid
- $90/mo
- UniOne
- $44/mo
Workload
- SendGrid
- 100K emails
- UniOne
- 100K emails
Free access
- SendGrid
- 100 emails/day (trial)
- UniOne
- 4-month free trial with 6,000 emails/month and 100 email validations; free testing tier allows up to 100 emails/day to v
Published plans
- SendGrid
- Free Trial, Essentials, Pro, Premier
- UniOne
- Free Trial, Standard, Individual
Prices checked
- SendGrid
- 2026-10-08
- UniOne
- 2026-10-08
Email APIs monthly cost
SendGrid: $90UniOne: $44
Cost by emails
Cost curve data
| emails | SendGrid | UniOne |
|---|---|---|
| 0 | $0 | $0 |
| 25K | $20 | $6.00 |
| 50K | $20 | $6.00 |
| 100K | $90 | $44 |
| 200K | $170 | $119 |
| 500K | $450 | $344 |
| 1M | $900 | $719 |
0
- SendGrid
- $0
- UniOne
- $0
25K
- SendGrid
- $20
- UniOne
- $6.00
50K
- SendGrid
- $20
- UniOne
- $6.00
100K
- SendGrid
- $90
- UniOne
- $44
200K
- SendGrid
- $170
- UniOne
- $119
500K
- SendGrid
- $450
- UniOne
- $344
1M
- SendGrid
- $900
- UniOne
- $719
Email APIs feature comparison
| Email APIs | SendGrid | UniOne |
|---|---|---|
| Single sign-on | Not listed | |
| SMTP and API | Not listed | |
| Comprehensive Client Libraries | Not listed | |
| Setup Guide | Not listed | |
| Interactive API Docs | Not listed | |
| Knowledge Center | Not listed | |
| Purpose-Built Mail Transfer Agent | Not listed | |
| Domain Authentication (SPF/DKIM) | Not listed | |
| Dedicated IP Addresses | 1 included* | Not listed |
| Dedicated IP Pooling | Not listed | |
| Automated, dedicated IP warm up | Not listed | |
| Email Address Validation API | 2,500 free validations included | Not listed |
| Reputation & Delivery Visibility | Not listed | |
| Suppression Management | Not listed | |
| Globally Distributed Architecture | Not listed | |
| Link Branding | Not listed | |
| Reverse DNS | Not listed | |
| Universal Links | Not listed | |
| IP Access Management | Not listed | |
| Two-Factor Authentication | Not listed | |
| TLS Encryption | Not listed | |
| SOC 2 Type II Certification | Not listed | |
| GDPR Compliance | Not listed | |
| Data Residency (EU) | Not listed | |
| Event Webhook Security | Not listed | |
| Event Webhook | 5 included | Not listed |
| Deliverability Insights | Not listed | |
| Real-Time Analytics | Not listed | |
| Advanced Statistics | Not listed | |
| Inbound Parse Webhook | Not listed | |
| Bounce and Block Classifications | Not listed | |
| Engagement Tracking | Not listed | |
| ISP Feedback Loop Data | Not listed | |
| Subuser Comparison Statistics | Not listed | |
| Searchable Email Activity | 7 days of history | Not listed |
| Additional Email Activity History | Available for purchase | Not listed |
| Sender Engagement Quality Score | Not listed | |
| Email Logs | Not listed | |
| Access to Expert Services | Available for purchase | Not listed |
| Access to Personalized Support | Available for purchase | Not listed |
| Expert Email Program Management | Not listed | |
| Dynamic Templates | Not listed | |
| Email Content Testing | 60 credits/mo (more for purchase) | Not listed |
| Teammate Permissions | 1,000 teammates | Not listed |
| API Key Permissions | Not listed | |
| Subuser Management | Not listed |
Single sign-on
- SendGrid
- UniOne
- Not listed
SMTP and API
- SendGrid
- UniOne
- Not listed
Comprehensive Client Libraries
- SendGrid
- UniOne
- Not listed
Setup Guide
- SendGrid
- UniOne
- Not listed
Interactive API Docs
- SendGrid
- UniOne
- Not listed
Knowledge Center
- SendGrid
- UniOne
- Not listed
Purpose-Built Mail Transfer Agent
- SendGrid
- UniOne
- Not listed
Domain Authentication (SPF/DKIM)
- SendGrid
- UniOne
- Not listed
Dedicated IP Addresses
- SendGrid
- 1 included*
- UniOne
- Not listed
Dedicated IP Pooling
- SendGrid
- UniOne
- Not listed
Automated, dedicated IP warm up
- SendGrid
- UniOne
- Not listed
Email Address Validation API
- SendGrid
- 2,500 free validations included
- UniOne
- Not listed
Reputation & Delivery Visibility
- SendGrid
- UniOne
- Not listed
Suppression Management
- SendGrid
- UniOne
- Not listed
Globally Distributed Architecture
- SendGrid
- UniOne
- Not listed
Link Branding
- SendGrid
- UniOne
- Not listed
Reverse DNS
- SendGrid
- UniOne
- Not listed
Universal Links
- SendGrid
- UniOne
- Not listed
IP Access Management
- SendGrid
- UniOne
- Not listed
Two-Factor Authentication
- SendGrid
- UniOne
- Not listed
TLS Encryption
- SendGrid
- UniOne
- Not listed
SOC 2 Type II Certification
- SendGrid
- UniOne
- Not listed
GDPR Compliance
- SendGrid
- UniOne
- Not listed
Data Residency (EU)
- SendGrid
- UniOne
- Not listed
Event Webhook Security
- SendGrid
- UniOne
- Not listed
Event Webhook
- SendGrid
- 5 included
- UniOne
- Not listed
Deliverability Insights
- SendGrid
- UniOne
- Not listed
Real-Time Analytics
- SendGrid
- UniOne
- Not listed
Advanced Statistics
- SendGrid
- UniOne
- Not listed
Inbound Parse Webhook
- SendGrid
- UniOne
- Not listed
Bounce and Block Classifications
- SendGrid
- UniOne
- Not listed
Engagement Tracking
- SendGrid
- UniOne
- Not listed
ISP Feedback Loop Data
- SendGrid
- UniOne
- Not listed
Subuser Comparison Statistics
- SendGrid
- UniOne
- Not listed
Searchable Email Activity
- SendGrid
- 7 days of history
- UniOne
- Not listed
Additional Email Activity History
- SendGrid
- Available for purchase
- UniOne
- Not listed
Sender Engagement Quality Score
- SendGrid
- UniOne
- Not listed
Email Logs
- SendGrid
- UniOne
- Not listed
Access to Expert Services
- SendGrid
- Available for purchase
- UniOne
- Not listed
Access to Personalized Support
- SendGrid
- Available for purchase
- UniOne
- Not listed
Expert Email Program Management
- SendGrid
- UniOne
- Not listed
Dynamic Templates
- SendGrid
- UniOne
- Not listed
Email Content Testing
- SendGrid
- 60 credits/mo (more for purchase)
- UniOne
- Not listed
Teammate Permissions
- SendGrid
- 1,000 teammates
- UniOne
- Not listed
API Key Permissions
- SendGrid
- UniOne
- Not listed
Subuser Management
- SendGrid
- UniOne
- Not listed
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Which email providers fit your needs?
SendGrid features & plan notes
- Marketing + transactional
- Mature deliverability
- Analytics & deliverability optimization
- Dedicated IPs included
- Subuser management
- Single sign-on (SSO)
- Additional teammates: 1,000
- Event webhook: 5
- Email validation: 2,500
- Dynamic templates: Editor and testing
UniOne features & plan notes
- Email delivery via RESTful Web API and SMTP API
- Dynamic templating supporting Liquid, Velocity, and Simple template engines
- Drag-and-drop email builder with AI HTML editor and 200+ pre-built templates
- Real-time event webhooks, click/open tracking, and up to 100 days of analytics storage
- Integrated email validation API and automatic suppression list management
- 50 000 emails/month
- 24/7 support in live chat and via email
- Transactional emails
- Bulk/marketing email campaigns
- SMTP API allowing to start sending emails in mere minutes
- Versatile Web API with a comprehensive, clear documentation
- Integration libraries for Ruby, PHP, C#
- Ready-to-use email integrations with Bloomreach and Drupal
- SPF, DKIM, and DMARC authentication for senders’ domains
- SPF and DKIM authentication for tracking domains
- Template engines
- 200+ ready-made email templates
- Drag-and-drop visual email builder
- AI-powered HTML email editor
- Instant webhooks for events tracking
- Click tracking
- Unsubscribe tracking
- Address suppression management
- Custom unsubscribe link access
- Custom email campaigns tagging
- Real-time event tracking
- Up to 45 days of log retention
- Up to 100 days of analytics data storage
- Analytics CSV data export
- Email delivery, bounce, spam, & open rates
- Independent projects with individual API keys
- Up to 6,000 email address validations per month included
- Microsoft oAuth support
- Two-factor authentication
- GDPR Compliance
How to compare email providers
Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.
Browse Email APIs pricingSendGrid vs UniOne — FAQ
SendGrid: $90/month on Pro at 100,000 emails. UniOne: $0/month on Free Trial at 0 emails. Different billing units are not an equal-workload comparison. Estimates exclude unlisted add-ons and taxes.
Review SMTP or API integration, domain authentication, bounce and complaint events, suppression handling and delivery-log retention.
Only when the published plan actually bills by sends. Contacts, subscribers and inboxes stay in their own billing units.
Marketing + transactional, Mature deliverability. Free access: 100 emails/day (trial). Check plan-specific availability and current terms on the provider's official pricing page.
Email delivery via RESTful Web API and SMTP API, Dynamic templating supporting Liquid, Velocity, and Simple template engines, Drag-and-drop email builder with AI HTML editor and 200+ pre-built templates, Real-time event webhooks, click/open tracking, and up to 100 days of analytics storage, Integrated email validation API and automatic suppression list management. Free access: 4-month free trial with 6,000 emails/month and 100 email validations; free testing tier allows up to 100 emails/day to v. Check plan-specific availability and current terms on the provider's official pricing page.