Seamless.AI vs Apollo.io for Startups
Seamless.AI suits startups that want to build prospect lists through real-time contact research, while Apollo.io for Startups suits eligible teams that want published per-seat pricing and a first-year discount on prospecting and outreach. Both offer contact data and email campaigns, but their credit allowances, calling setups and startup terms differ.
Last updated November 6, 2026.
At a glance
| Dimension | Seamless.AI | Apollo.io for Startups |
|---|---|---|
| Entry paid price | Paid prices not published; contact sales | Basic: $49 per seat/month, billed annually |
| Other paid plans | Pro and Enterprise; contact sales | Professional: $79 per seat/month, billed annually; Custom available |
| Free allowance | 50 credits for one user | 900 credits per seat/year, granted monthly |
| Paid credit allowances | Basic: 250 Universal Credits/month; Pro: 10,000 Universal Credits/month | Basic: 30,000 credits/seat/year; Professional: 48,000 credits/seat/year |
| Credit sharing | Bulk credits available in an organization pool | Plan credits pooled across the team |
| Billing commitment | Annual subscriptions; monthly or annual billing | Monthly or annual billing |
| Calling | Connect calling requires a Twilio subscription | US dialer on Professional |
| Support | Free: knowledge base, email support and live training webinars | Accepted startup-program members receive 1:1 support |
| Integrations | Salesforce, HubSpot, Outreach, Salesloft and Zapier | Salesforce, HubSpot, Outreach, Salesloft and Marketo |
Scroll the table sideways to compare each row.
Which should you choose?
Choose Seamless.AI if
- Teams prioritizing real-time contact research
- Founders testing prospecting with 50 free credits
- Teams wanting email campaigns and tasks through Connect
- Sales teams that can obtain a quote for their credit needs
Choose Apollo.io for Startups if
- Eligible startups seeking a first-year plan discount
- Teams budgeting from published per-seat prices
- Teams that want credits pooled across users
- Founders seeking 1:1 startup-program support
The verdict
A small team focused on finding contacts and using Seamless Connect for follow-up should consider Seamless.AI, particularly if it is comfortable getting a paid quote and committing to an annual subscription. Apollo.io for Startups is a better fit for an eligible team that wants to budget from published plan prices, use team-pooled credits and receive 1:1 startup-program support. Compare the credits your workflow will consume and the calling setup you need before choosing.
Seamless.AI vs Apollo.io for Startups: common questions
- Who qualifies for Apollo.io for Startups?
- Apollo says eligible companies have fewer than 20 employees, no existing Apollo subscription, a valid company domain and an affiliation with a startup ecosystem partner. Companies without a partner affiliation can still apply for next steps.
- How much is the Apollo.io for Startups discount?
- Accepted startups receive 50% off Apollo's Basic or Professional plan for one year, for up to five seats.
- Can I compare paid prices before speaking to sales?
- Apollo lists Basic at $49 per seat per month and Professional at $79 per seat per month, both billed annually. Seamless.AI does not publish its paid prices and directs buyers to sales.
- How do the free credit allowances differ?
- Seamless.AI gives one free user 50 credits that do not replenish. Apollo's Free plan lists 900 credits per seat per year, granted monthly.
- What happens to unused credits?
- Apollo says unused plan and add-on credits do not roll over to the next billing cycle. Seamless.AI says its free credits do not replenish and describes monthly refreshes for Basic and Pro Universal Credits.
- Can both products run outreach campaigns?
- Yes. Seamless Connect supports email campaigns, calls and follow-up tasks. Apollo supports email campaigns and sequences; its Free plan includes two sequences per team, while Basic includes unlimited sequences.
- Does calling require another service?
- Seamless.AI says calls made directly within Connect require a Twilio subscription. Apollo lists a US dialer on its Professional plan.
- Are these monthly subscriptions?
- Apollo offers monthly billing or a lower per-month rate with annual billing. Seamless.AI says its paid subscriptions are annual contracts, whether billed monthly or annually.
