vioscale
Comparison

Instantly.ai vs Seamless.ai

On the evidence we track, Instantly.ai leads this comparison with a composite score of 68/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Instantly.ai full profile →Seamless.ai full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
★Instantly.ai68
Seamless.ai58
Score
Vioscale score
Instantly.ai68 / 100low · 37%
Seamless.ai58 / 100medium · 55%
Pricing
Free tier
Instantly.ai✓
Seamless.ai✓
Model
Instantly.aicommercial
Seamless.aifreemium
Price level
Instantly.aihigh
Seamless.ailow
Starting price
Instantly.ai$94
Seamless.ai–
Transparent
Instantly.ai✓
Seamless.ai✗
Integrations
Count
Instantly.ai4
Seamless.ai8
Security
Gdpr
Instantly.ai–
Seamless.ai✓
Iso27001
Instantly.ai–
Seamless.ai✓
Soc2
Instantly.ai–
Seamless.ai✓
Market
Availability

Capabilities

Feature-by-feature on the axes that matter for ai sdr sales agents. “-” means undocumented, not absent.

Capabilities
Deployment model
Instantly.aiFeature of broader sales platform
Seamless.aiFeature of broader sales platform
Autonomous inbox reply handling and objection rebuttals
Instantly.ai✓
Seamless.ai-
Web scraping and linkedin profile ingestion
Instantly.ai✓
Seamless.ai-
Meeting booking via native calendar integration
Instantly.ai✗
Seamless.ai-
Two way CRM sync to prevent duplicate outreach
Instantly.ai✓
Seamless.ai✓
Multi channel sequencing email and linkedin dm
Instantly.ai✗
Seamless.ai✓
Playbook based guardrails for brand tone
Instantly.ai✗
Seamless.ai-
Waterfall data enrichment for email finding
Instantly.ai✓
Seamless.ai✓
Human in the loop draft approval mode
Instantly.ai✗
Seamless.ai-
Deliverability and spam reputation warmup
Instantly.ai✓
Seamless.ai-
SOC2 type ii
Instantly.ai✗
Seamless.ai✓
GDPR and CCPA prospect data compliance
Instantly.ai✗
Seamless.ai✓
Pricing model
Instantly.aiFlat monthly digital worker
Seamless.aiper_credit_volume_tier

What each one is

The product in its own terms, so the numbers below have context.

Instantly.ai

Leader

Sales engagement platform providing AI-driven automation for cold email outreach, lead enrichment from multiple data sources, and autonomous reply handling. Includes integration with CRMs like HubSpot, 450M+ B2B contact database, and tools to monitor campaign performance through pipeline and revenue metrics.

Independently observed

Seamless.ai

Seamless.ai combines real-time verified B2B contact intelligence with AI-driven automation to help sales teams identify, research, and engage qualified prospects across multiple channels. The platform unifies prospect discovery, enrichment, and outreach sequencing in a single system designed to reduce manual work and increase closing rates.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Instantly.ai

Leader
from $94/moSubscription

From $94/month. Annual billing saves 10%.

  • Starter$94/month; $85/month annual
    • AI Sales Agent
    • Database of 450M+ B2B leads
    • 1500 Instantly credits monthly
  • Scale$194/month; $175/month annual
    • Everything in Starter
    • AI Reply Agent
    • Unibox replies
    • Advanced deliverability features
    • Premium Live Support
  • Agency$555/month; $500/month annual
    • Everything in Scale
    • SISR System (private IP infrastructure)
    • Dedicated Account Manager
  • EnterpriseContact sales
    • Everything in Agency
    • Private Deliverability Network
    • Dedicated GTM Engineer
    • Custom infrastructure
as of verify ↗

Seamless.ai

HybridFree tier

Free tier available. Pro and Enterprise pricing available via sales contact.

  • FreeFree
    • Email addresses
    • Cell phones
    • Real-time search
    • Export download
  • ProContact sales
    • Email addresses
    • Cell phones
    • Real-time search
    • Unlimited exports
    • Enterprise security and compliance
    • +10 more
  • EnterpriseContact sales
    • Unlimited users
    • Custom feature packages
    • Dedicated success manager
    • Quarterly business reviews
    • Phone support
    • +1 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Instantly.ai✓
Seamless.ai✓
Deployment
Cloud / SaaS
Instantly.ai✓
Seamless.ai✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • HubSpot

Instantly.ai

Leader
5 total - 4 not shared
  • Slack
  • BetterContact
  • Trigify
  • Perplexity
Independently observed

Seamless.ai

8 total - 7 not shared
  • Salesforce
  • Salesloft
  • Zoho
  • Pipedrive
  • MS Dynamics
  • Okta
  • Google
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.