# Interseller vs SparkPost Comparison

| | Interseller | SparkPost | 
|---|---|---|
| **Star Rating** | 4.7 out of 5 | 4.0 out of 5 | 
| **Total Reviews** | 210 | 73 | 
| **Largest Market Segment** | Small-Business (78.7% of reviews) | Small-Business (49.3% of reviews) | 
| **Entry Level Price** | Starting at $600.00 3 Users Per Month | $20 per month | 

---
## Top Pros & Cons

### Interseller

Pros:
- Ease of Use (10 reviews)
- Helpful (7 reviews)

Cons:
- Email Management (7 reviews)
- Missing Features (4 reviews)

### SparkPost

Pros:
- Customer Support (1 reviews)
- Ease of Use (1 reviews)

Cons:
- Email Spamming (1 reviews)
- Poor Customer Support (1 reviews)

---
## Ratings Comparison
| Rating | Interseller | SparkPost | 
|---|---|---|
  | **Meets Requirements** | 9.2 (171 reviews) | 8.2 (63 reviews) | 
  | **Ease of Use** | 9.5 (171 reviews) | 8.6 (62 reviews) | 
  | **Ease of Setup** | 9.3 (63 reviews) | 8.3 (41 reviews) | 
  | **Ease of Admin** | 9.3 (64 reviews) | 7.9 (41 reviews) | 
  | **Quality of Support** | 9.5 (168 reviews) | 7.7 (59 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.5 (64 reviews) | 7.5 (40 reviews) | 
  | **Product Direction (% positive)** | 9.4 (163 reviews) | 8.1 (61 reviews) | 

---
## Pricing

### Interseller

#### Entry-Level Pricing

Plan: Agency Plan

Price: Starting at $600.00 3 Users Per Month

Key Features:
- Source via Chrome Extension
- 250 Email Lookups (Work or Personal)
- Store Unlimited Contacts

[Learn more about Interseller](https://www.g2.com/products/interseller/reviews)

#### Free Trial

No

### SparkPost

#### Entry-Level Pricing

Plan: STARTER

Price: $20 per month

Description: OVERAGE:
$1.00 / thousand

Key Features:
- 50,000 emails/month
- OVERAGE: $1.00 / thousand

[Browse all 5 editions](https://www.g2.com/products/sparkpost/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Email Marketing

| Product | Score | Reviews |
|---|---|---|
| **Interseller** | 8.9/10 | 82 |
| **SparkPost** | N/A | N/A |

#### Email Marketing

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Email and Mobile Preview** | 8.9 (18 reviews) | Not enough data | 
| **Manage Email Lists** | 8.9 (67 reviews) ✓ Verified | Not enough data | 
| **High-Volume Sending** | 9.0 (27 reviews) | Not enough data | 
| **Building and Personalizing Emails** | 9.3 (67 reviews) ✓ Verified | Not enough data | 
| **Sending Outbound Emails** | 9.5 (70 reviews) ✓ Verified | Not enough data | 
| **Manage Email Deliverability** | 8.9 (70 reviews) | Not enough data | 
| **Automated Email Responses** | 8.6 (24 reviews) | Not enough data | 
| **Multi-user Account** | 8.6 (49 reviews) ✓ Verified | Not enough data | 
| **Surveys** | Feature Not Available | Not enough data | 

#### Reporting & Analytics

| Feature | Interseller | SparkPost | 
|---|---|---|
| **A/B Testing** | 8.7 (48 reviews) ✓ Verified | Not enough data | 
| **Basic Reporting** | 8.7 (65 reviews) ✓ Verified | Not enough data | 

#### Generative AI

| Feature | Interseller | SparkPost | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | 

#### Agentic AI - Email Marketing

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 

#### Integration

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Data Import & Export Tools** | 8.9 (30 reviews) ✓ Verified | Not enough data | 
| **Integration APIs** | 8.5 (26 reviews) ✓ Verified | Not enough data | 
| **Breadth of Partner Applications** | 8.6 (20 reviews) ✓ Verified | Not enough data | 
| **CRM Integration** | 8.9 (27 reviews) ✓ Verified | Not enough data | 
| **Social Media Integration** | Feature Not Available | Not enough data | 
| **E-Commerce Integration** | 9.0 (5 reviews) | Not enough data | 

### Transactional Email

| Product | Score | Reviews |
|---|---|---|
| **Interseller** | N/A | N/A |
| **SparkPost** | 8.3/10 | 38 |

#### Administration

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Template Creation** | Not enough data | 7.1 (23 reviews) | 
| **Preset Template Availability** | Not enough data | 6.5 (18 reviews) | 
| **Custom Unsubscribe** | Not enough data | 8.6 (20 reviews) | 
| **Email Segmentation** | Not enough data | 7.1 (18 reviews) | 
| **Detailed Server Logs** | Not enough data | 7.8 (28 reviews) | 
| **Notifications** | Not enough data | 8.1 (30 reviews) | 

#### Integrations

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Webhooks** | Not enough data | 8.5 (27 reviews) | 
| **Event Tracking API** | Not enough data | 8.5 (26 reviews) | 
| **Mail Send API** | Not enough data | 8.9 (29 reviews) | 
| **Spam Filter Testing** | Not enough data | 7.7 (22 reviews) | 

#### Platform

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Custom Tracking Domain** | Not enough data | 8.9 (27 reviews) | 
| **Multiple Domains** | Not enough data | 8.5 (26 reviews) | 
| **Dedicated IP** | Not enough data | 8.7 (26 reviews) | 
| **Documentation** | Not enough data | 8.2 (30 reviews) | 
| **Sender Reputation Management** | Not enough data | 8.5 (29 reviews) | 
| **Tracking & Reporting** | Not enough data | 8.2 (30 reviews) | 
| **Enterprise Scalability** | Not enough data | 8.3 (25 reviews) | 
| **Performance and Reliability** | Not enough data | 8.5 (32 reviews) | 

### Email Deliverability

| Product | Score | Reviews |
|---|---|---|
| **Interseller** | 8.9/10 | 61 |
| **SparkPost** | 6.7/10 | 16 |

#### Diagnosis

| Feature | Interseller | SparkPost | 
|---|---|---|
| **IP Address ** | 9.0 (28 reviews) | 6.1 (11 reviews) | 
| **Domains** | 8.9 (31 reviews) | 6.3 (13 reviews) | 
| **Content ** | 8.9 (36 reviews) | 6.7 (13 reviews) | 
| **Policy Compliance** | 8.9 (33 reviews) | 7.2 (12 reviews) | 

#### Tracking

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Processing Time** | Feature Not Available | 8.3 (14 reviews) | 
| **Placement ** | Feature Not Available | 7.2 (10 reviews) | 
| **Open Rate** | 9.2 (57 reviews) | 7.1 (11 reviews) | 
| **Time to Open** | 9.1 (51 reviews) | 7.9 (11 reviews) | 
| **Alerts** | 8.6 (38 reviews) | 6.8 (13 reviews) | 

#### Reporting

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Campaign Performance** | 9.2 (55 reviews) | 5.7 (12 reviews) | 
| **Domain Reputation** | 8.6 (35 reviews) | 5.6 (12 reviews) | 
| **Brand Reputation** | 8.8 (36 reviews) | 6.1 (12 reviews) | 
| **Blacklist and Whitelist** | 8.5 (36 reviews) | 6.0 (13 reviews) | 

#### Agentic AI - Email Deliverability

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

### Sales Engagement

| Product | Score | Reviews |
|---|---|---|
| **Interseller** | 8.8/10 | 66 |
| **SparkPost** | N/A | N/A |

#### Integrated Workflows

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Task Management** | 8.3 (41 reviews) ✓ Verified | Not enough data | 
| **Email Tracking/Automation** | 9.4 (62 reviews) ✓ Verified | Not enough data | 
| **Calls and Voice** | Feature Not Available | Not enough data | 
| **Other Outreach Options ** | 7.4 (41 reviews) ✓ Verified | Not enough data | 
| **CRM Integration** | 9.2 (54 reviews) ✓ Verified | Not enough data | 
| **Calendar** | 8.9 (6 reviews) | Not enough data | 
| **Shared Records** | 9.0 (8 reviews) | Not enough data | 

#### Repeatability and Reportability

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Content Management** | 8.6 (51 reviews) ✓ Verified | Not enough data | 
| **Workflow Management** | 8.9 (51 reviews) ✓ Verified | Not enough data | 
| **Workflow Performance** | 8.8 (50 reviews) ✓ Verified | Not enough data | 
| **Sales Coaching and Insights** | Feature Not Available | Not enough data | 
| **Gamification** | Not enough data | Not enough data | 

#### AI and Automation

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Lead Prioritization** | 9.0 (7 reviews) | Not enough data | 
| **Lead Scoring** | 9.4 (6 reviews) | Not enough data | 
| **Best Time of Day Scheduling** | 8.5 (10 reviews) | Not enough data | 
| **Buyer Intelligence** | Not enough data | Not enough data | 
| **Machine Learning** | Not enough data | Not enough data | 

#### Generative AI

| Feature | Interseller | SparkPost | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 

#### Agentic AI - Sales Engagement

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

### Candidate Relationship Management

| Product | Score | Reviews |
|---|---|---|
| **Interseller** | 9.1/10 | 70 |
| **SparkPost** | N/A | N/A |

#### Basics

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Reporting** | 8.8 (42 reviews) | Not enough data | 
| **Interoperability** | 8.7 (33 reviews) | Not enough data | 
| **Performance** | 9.4 (42 reviews) | Not enough data | 

#### Additional Functionality

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Dashboard** | 9.1 (45 reviews) | Not enough data | 
| **Cloud** | 9.5 (25 reviews) | Not enough data | 
| **Mobility** | Feature Not Available | Not enough data | 

#### Content

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Automation** | 9.5 (42 reviews) | Not enough data | 
| **File Sharing** | 9.0 (25 reviews) | Not enough data | 

#### Recruiting and Onboarding

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Sourcing and Candidate Identification** | 8.8 (36 reviews) ✓ Verified | Not enough data | 
| **Interview Scheduling** | Feature Not Available | Not enough data | 
| **Applicant Tracking** | 8.6 (6 reviews) | Not enough data | 

#### Platform

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Customization ** | 8.3 (27 reviews) ✓ Verified | Not enough data | 
| **Integration APIs** | 8.7 (21 reviews) ✓ Verified | Not enough data | 
| **Internationalization** | 8.2 (18 reviews) ✓ Verified | Not enough data | 
| **User, Role, and Access Management** | 8.8 (28 reviews) ✓ Verified | Not enough data | 
| **Performance** | 9.1 (30 reviews) ✓ Verified | Not enough data | 
| **Mobility** | 8.0 (9 reviews) | Not enough data | 
| **Reporting** | 8.2 (28 reviews) ✓ Verified | Not enough data | 
| **Dashboards** | 8.8 (31 reviews) ✓ Verified | Not enough data | 

### Recruiting Automation

| Product | Score | Reviews |
|---|---|---|
| **Interseller** | 8.6/10 | 66 |
| **SparkPost** | N/A | N/A |

#### Platform Functionality

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Sourcing and Candidate Identification** | 8.8 (36 reviews) ✓ Verified | Not enough data | 
| **Job Posting** | Feature Not Available | Not enough data | 
| **Interview Scheduling** | Feature Not Available | Not enough data | 
| **Applicant Tracking** | 8.6 (6 reviews) | Not enough data | 

#### Agentic AI - Recruiting Automation

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

#### Platform

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Customization ** | 8.3 (27 reviews) ✓ Verified | Not enough data | 
| **Integration APIs** | 8.7 (21 reviews) ✓ Verified | Not enough data | 
| **Internationalization** | 8.2 (18 reviews) ✓ Verified | Not enough data | 
| **User, Role, and Access Management** | 8.8 (28 reviews) ✓ Verified | Not enough data | 
| **Performance** | 9.1 (30 reviews) ✓ Verified | Not enough data | 
| **Mobility** | 8.0 (9 reviews) | Not enough data | 
| **Reporting** | 8.2 (28 reviews) ✓ Verified | Not enough data | 
| **Dashboards** | 8.8 (31 reviews) ✓ Verified | Not enough data | 

### Recruiting

| Product | Score | Reviews |
|---|---|---|
| **Interseller** | N/A | N/A |
| **SparkPost** | N/A | N/A |

#### Generative AI

| Feature | Interseller | SparkPost | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | 

### Email Tracking

| Product | Score | Reviews |
|---|---|---|
| **Interseller** | N/A | N/A |
| **SparkPost** | 8.2/10 | 22 |

#### Agentic AI - Email Tracking

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

#### Analytics

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Open Rates** | Not enough data | 8.4 (17 reviews) | 
| **Link Activity** | Not enough data | 8.4 (17 reviews) | 
| **Attachment Activity** | Not enough data | 8.5 (12 reviews) | 

#### Customizations

| Feature | Interseller | SparkPost | 
|---|---|---|
| **Email Platform Integration** | Not enough data | 8.1 (16 reviews) | 
| **Email Scheduling** | Not enough data | 8.3 (13 reviews) | 
| **Notifications** | Not enough data | 8.1 (14 reviews) | 
| **Email Categorization** | Not enough data | 7.8 (13 reviews) | 
| **Templates** | Not enough data | 8.2 (11 reviews) | 

#### Generative AI

| Feature | Interseller | SparkPost | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 

---
## Categories
**Shared Categories (1):** [Email Deliverability Tools](https://www.g2.com/categories/email-deliverability)

**Unique to Interseller (4):** [Sales Engagement Software](https://www.g2.com/categories/sales-engagement), [Recruiting Automation Software](https://www.g2.com/categories/recruiting-automation), [Email Marketing Software](https://www.g2.com/categories/email-marketing), [Candidate Relationship Management Software](https://www.g2.com/categories/candidate-relationship-management)

**Unique to SparkPost (2):** [Transactional Email Software](https://www.g2.com/categories/transactional-email), [Email Tracking Software](https://www.g2.com/categories/email-tracking)


---
## Reviewer Demographics

### By Company Size

| Segment | Interseller | SparkPost | 
|---|---|---|
| **Small-Business** | 78.7% | 49.3% | 
| **Mid-Market** | 18.8% | 26.8% | 
| **Enterprise** | 2.4% | 23.9% | 

### By Industry

#### Interseller

- **Staffing and Recruiting:** 22.2%
- **Computer Software:** 15.5%
- **Information Technology and Services:** 9.7%
- **Internet:** 6.8%
- **Human Resources:** 4.8%
- **Marketing and Advertising:** 3.4%
- **Hospital & Health Care:** 2.9%
- **Accounting:** 2.4%
- **Consumer Goods:** 2.4%
- **Management Consulting:** 1.9%
- **Other:** 28.0%

#### SparkPost

- **Internet:** 19.7%
- **Information Technology and Services:** 11.3%
- **Computer Software:** 9.9%
- **Financial Services:** 8.5%
- **Higher Education:** 4.2%
- **Leisure, Travel & Tourism:** 2.8%
- **Marketing and Advertising:** 2.8%
- **Non-Profit Organization Management:** 2.8%
- **Online Media:** 2.8%
- **Education Management:** 2.8%
- **Other:** 32.4%

---
## Alternatives

### Alternatives to Interseller

- [Snov.io](https://www.g2.com/products/snov-io/reviews) — 4.5/5 stars (493 reviews)
- [Intuit Mailchimp Email Marketing](https://www.g2.com/products/intuit-mailchimp-email-marketing/reviews) — 4.3/5 stars (12969 reviews)
- [Brevo Marketing Platform](https://www.g2.com/products/brevo-marketing-platform/reviews) — 4.5/5 stars (2569 reviews)
- [Zoho Recruit](https://www.g2.com/products/zoho-recruit/reviews) — 4.4/5 stars (1840 reviews)
- [Constant Contact](https://www.g2.com/products/constant-contact/reviews) — 4.1/5 stars (7392 reviews)
- [lemlist](https://www.g2.com/products/lemlist/reviews) — 4.6/5 stars (1606 reviews)
- [GTM Workspace - Powered by ZoomInfo](https://www.g2.com/products/gtm-workspace-powered-by-zoominfo/reviews) — 4.5/5 stars (9098 reviews)
- [hireEZ](https://www.g2.com/products/hireez/reviews) — 4.6/5 stars (264 reviews)
- [MailerLite](https://www.g2.com/products/mailerlite/reviews) — 4.6/5 stars (1110 reviews)
- [Apollo.io](https://www.g2.com/products/apollo-io/reviews) — 4.7/5 stars (9658 reviews)

### Alternatives to SparkPost

- [Brevo Marketing Platform](https://www.g2.com/products/brevo-marketing-platform/reviews) — 4.5/5 stars (2569 reviews)
- [Intuit Mailchimp Email Marketing](https://www.g2.com/products/intuit-mailchimp-email-marketing/reviews) — 4.3/5 stars (12969 reviews)
- [Twilio SendGrid Email API](https://www.g2.com/products/twilio-sendgrid-email-api/reviews) — 4.0/5 stars (368 reviews)
- [Mailgun](https://www.g2.com/products/mailgun/reviews) — 4.2/5 stars (321 reviews)
- [Elastic Email](https://www.g2.com/products/elastic-email/reviews) — 4.4/5 stars (212 reviews)
- [Netcore Email API](https://www.g2.com/products/netcore-email-api/reviews) — 4.4/5 stars (732 reviews)
- [Everest](https://www.g2.com/products/validity-inc-everest/reviews) — 4.2/5 stars (189 reviews)
- [Klaviyo](https://www.g2.com/products/klaviyo/reviews) — 4.6/5 stars (1354 reviews)
- [Constant Contact](https://www.g2.com/products/constant-contact/reviews) — 4.1/5 stars (7392 reviews)
- [SendPulse](https://www.g2.com/products/sendpulse/reviews) — 4.6/5 stars (713 reviews)

---
## Top Discussions

### Interseller

- Title: [Who do you integrate with?](https://www.g2.com/discussions/who-do-you-integrate-with) — 3 comments, 2 upvotes *(includes official response)*
  > **Top comment:** "We integrate with more than 20+ integrations including Zendesk Sell (Base), BreezyHR, Bullhorn, CATS, Clockwork, Close.io, Copper, Crelate, Exelare,..."
- Title: [Do you require a yearly commitment?](https://www.g2.com/discussions/do-you-require-a-yearly-commitment) — 1 comment, 1 upvote *(includes official response)*
  > **Top comment:** "We don't require any commitments of any kind. Get in touch with us if you'd like to discuss pricing for a more long-term commitment."
- Title: [What is an email lookup?](https://www.g2.com/discussions/what-is-an-email-lookup) — 1 comment, 1 upvote *(includes official response)*
  > **Top comment:** "An email lookup for Interseller is whenever we find an email address for you. You do not consume lookups when we cannot find any contact information for an..."

### SparkPost

- Title: [How do I find out what happened to my messages?](https://www.g2.com/discussions/deliverability-2b2e893c-c6eb-4216-b00e-d1687e955150) — 1 comment, 1 upvote *(includes official response)*
  > **Top comment:** "Detailed information on message delivery and engagement is available through real-time webhooks. In addition, information is available on a pull-basis..."
- Title: [How can I stay aware of outages?](https://www.g2.com/discussions/support-435ee6df-a98f-4636-8a06-277459942ee2) — 1 comment, 1 upvote *(includes official response)*
  > **Top comment:** "We’re proud of SparkPost’s uptime and reliability. We’ve built a fully cloud-based system that scales instantly—and with full elasticity and redundancy. That..."
- Title: [How much does SparkPost cost?](https://www.g2.com/discussions/pricing-5be592cb-77ae-4867-8a3a-ad458f3723f8) — 1 comment, 1 upvote *(includes official response)*
  > **Top comment:** "SparkPost offers a free test account and a variety of plans to fit sending needs based on volume, starting at $20 / month."

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/interseller-vs-sparkpost)