InstantlyTurn leads into clients with automated outreach, a B2B lead database, email deliverability tools, and an AI-powered CRM.
vs
PostmarkThe email delivery service that people actually like
Comparison · Email Marketing · weekly run Nov 2
Instantly vs Postmark
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Postmark is the stronger AI pick in Email Marketing: it has a visibility score of 1.9 versus 0 for Instantly.
Choose Instantly if…
- Flat tiers pricing suits your budget better than usage-based
- Cost-effective platform for cold email outreach
- Strong for high-volume cold email outbound and lead generation
- Deliverability, warm-up and sending infrastructure
Choose Postmark if…
- You want the brand AI engines rank higher (1.9 vs 0)
- You want a free plan to start
- You need GDPR coverage
- Usage-based pricing suits your budget better than flat tiers
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Instantly | Postmark |
|---|---|---|
| Visibility score | 0% | 1.9% |
| Change vs last week | New | New |
| Rank in Email Marketing | #48 | #29 |
| Share of voice | 0% | 0.9% |
| Mentions this run | 0 | 5 |
| Positive in AI answers | 28% | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Instantly 0pp · Postmark 0pp over 0 weekly runs.
Engine by engine
Postmark leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
InstantlyPostmark
Head to head in AI answers
0 engine answers name both brands
0Instantly ranked higher
0Postmark ranked higher
Features, pricing & fit
| Dimension | Instantly | Postmark |
|---|---|---|
| Pricing model | Flat tiers | Usage-based |
| Entry price | $47 / mo | Free; paid from $15 / mo |
| Free plan | No | Yes |
| Deployment | Web-based | Cloud |
| Integrations | 50+ | — |
| Compliance | — | GDPR |
| Support | Chat support, Premium live support, Dedicated account manager and shared Slack channel on Enterprise plans | Contact form |
| Founded | 2021 | 2010 |
| Headquarters | Sheridan, Wyoming, United States | — |
| Employees | 51–200 | — |
| Funding | Bootstrapped | — |
| Best for | Small teams, agencies and freelancers running cold email outbound at scale. | Developers and product teams that need reliable transactional email |
Plans side by side
Instantly
Outreach Growth$47month
Outreach Hypergrowth$107month
Outreach Light Speed$358month
Outreach EnterpriseCustomcustom
Credits Growth$47month
Credits Supersonic$97month
Hyper Credits$197month (from)
Credits EnterpriseCustomcustom
Starter Bundle$94month
Scale Bundle$194month
Agency Bundle$555month
VIPCustomcustom
Postmark
Free$0month
Basic$15month
Pro$16.5month
Platform$18month
High volumeCustomcustom
Pros and cons
Themes from the AI answers that mention each brand
Instantly
- Cost-effective platform for cold email outreach
- Strong for high-volume cold email outbound and lead generation
- Deliverability, warm-up and sending infrastructure
- Good for agencies managing many sending accounts
- Highest G2 rating among sales engagement platforms
- Narrow focus on cold email rather than an all-in-one platform
- Not a complete CRM or full sales engagement suite
Postmark
- recommended for transactional email
- suited to reliable transactional email
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Instantly vs Postmark”, https://slateindex.ai/compare/instantly-vs-postmark, data of Nov 2, 2026. Licence: CC BY 4.0.