ApolloThe AI GTM System for Go-to-Market Teams
vs
SenderEmail marketing, automation and transactional emails for growing businesses
Comparison · Email Marketing · weekly run Nov 2
Apollo vs Sender
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Sender is the stronger AI pick in Email Marketing: it has a visibility score of 13.9 versus 0.4 for Apollo.
Choose Apollo if…
- You need more native integrations (200+ vs 100+)
- You need GDPR or SOC 2 or CCPA or ISO/IEC 27001 or CASA Tier 2 or CPRA or EU-US DPF or PCI DSS coverage
- You prefer a larger, established vendor (501–1,000 employees)
- Per seat pricing suits your budget better than flat tiers
Choose Sender if…
- You want the brand AI engines rank higher (13.9 vs 0.4)
- AI answers describe it more positively (73% vs 60% positive)
- Flat tiers pricing suits your budget better than per seat
- Generous free plan limits
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Apollo | Sender |
|---|---|---|
| Visibility score | 0.4% | 13.9% |
| Change vs last week | New | New |
| Rank in Email Marketing | #40 | #9 |
| Share of voice | 0.3% | 3.7% |
| Mentions this run | 1 | 18 |
| Positive in AI answers | 60% | 73% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Apollo 0pp · Sender 0pp over 0 weekly runs.
Engine by engine
Sender leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
ApolloSender
Head to head in AI answers
0 engine answers name both brands
0Apollo ranked higher
0Sender ranked higher
Features, pricing & fit
| Dimension | Apollo | Sender |
|---|---|---|
| Pricing model | Per seat | Flat tiers |
| Entry price | Contact sales | Free; paid from $9 / mo |
| Free plan | Yes | Yes |
| Deployment | Cloud platform | Cloud |
| Integrations | 200+ | 100+ |
| Compliance | GDPR, SOC 2, CCPA, ISO/IEC 27001, CASA Tier 2, CPRA, EU-US DPF, PCI DSS | — |
| Support | Email support at support@apollo.io, Dedicated support on Custom plans, Sales team for Custom plan discussions | 24/7 email and live chat, Priority support on Professional, Phone support and dedicated success manager on Enterprise |
| Founded | 2015 | 2012 |
| Headquarters | San Francisco, CA | Vilnius, Lithuania |
| Employees | 501–1,000 | 11–50 |
| Funding | Series D · $250M raised | Bootstrapped |
| Best for | Sales and go-to-market teams that run prospecting, outreach and dialing and want data, AI and execution in one system | Small businesses, growing teams, creators and ecommerce brands |
Plans side by side
Sender
Free Forever$0month
Standard$9month (500 subscribers, monthly billing)
Professional$15month (500 subscribers, monthly billing)
EnterpriseCustomcustom
Pros and cons
Themes from the AI answers that mention each brand
Apollo
- Large B2B contact database combined with prospecting and email sequencing
- Transparent self-serve per-user pricing with a free tier
- Strong all-in-one value for prospecting and outreach
- Affordable, reliable choice for small teams and startups
- Widely used and highly rated by reviewers
Sender
- Generous free plan limits
- High-value feature set for budget campaigns
- Lowest cost option
- Email automation with segmentation, landing pages and forms
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Apollo vs Sender”, https://slateindex.ai/compare/apollo-vs-sender, data of Nov 2, 2026. Licence: CC BY 4.0.