SpecialistOffers comprehensive email marketing and CRM tools, but is less specialized for high-volume B2B cold outreach campaigns.

Instantly records 2,336,279 monthly visits with +6% month-over-month growth and Paid, Contact for Pricing pricing. Postel records 121,244 monthly visits with +5.8% growth and Free Trial, Paid pricing.

AI writing assistant that drafts and schedules social posts in your own voice
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | instantly.ai | postel.app |
| Pricing Model | Paid, Contact for Pricing | Free Trial, Paid |
| Monthly Visits | 2.34M (2,336,279) | 121.24K (121,244) |
| MoM Traffic Delta |
| +131.38K (+6%) |
| +6.68K (+5.8%) |
| Primary Market & Share | 🇺🇸 United States (47.7%) | 🇺🇸 United States (14.8%) |
|---|
| Direct Visits / mo | 1.82M | 21.61K |
|---|
| User Rating | 4.4 | 4.2 |
|---|
| Supported Platforms | Website | Website |
|---|

Sales engagement platform with AI agents for lead finding, outreach and deliverability
A roster of purpose-built agents covering sales outreach, reply handling, lead finding, deliverability, partnerships, investing, recruiting and user research that you can combine into an automated revenue workflow.
Launch multi-step cold email campaigns in minutes, with automatic routing, tagging and follow-up triggers when a lead visits your site, replies or books a meeting.
Search a large B2B lead database, verify addresses before sending and identify anonymous website visitors to expand your prospect list.
Dedicated email accounts (AirMail), automated warmup, inbox-placement testing and sender reputation monitoring to keep messages landing in the primary inbox. There is no AI-generated or role prose youll want to keep.

AI writing assistant that drafts and schedules social posts in your own voice
Reads your historical posts to map line length, opening style, vocabulary and banned phrases so drafts sound like you.
Generates one drafted post for every day you normally publish and slots each into a calendar automatically.
Publishes to LinkedIn out of the box and connects X, Bluesky, Mastodon, TikTok and YouTube.
Accepts call notes, links, voice memos and podcast recordings as source material for new content.
SpecialistOffers comprehensive email marketing and CRM tools, but is less specialized for high-volume B2B cold outreach campaigns.

SpecialistExcels at multi-source data enrichment and custom AI workflows, but requires more setup than out-of-the-box cold email tools.
#2Delivers enterprise-grade revenue intelligence and deal execution tools, but is significantly more expensive and complex than Instantly.

Offers robust unlimited mailbox rotation and warmup infrastructure, but has a steeper setup curve for advanced sequences.

Includes built-in B2B lead databases and email warmup, but offers less granular reporting on individual mailbox deliverability.

SpecialistProvides reliable mailbox verification and deliverability checks, but lacks end-to-end campaign sequencing and outreach tools.

Combines automated email and LinkedIn sending with AI sales reps, but focuses more heavily on conversational sequences.
Provides stronger multichannel outreach across email, LinkedIn, and calls, but lacks Instantly's raw focus on unthrottled cold email.
Schedule and automate social media on 12 platforms — with AI agents that post for you

Write, schedule, automate and analyse your X growth in one place

Automates personalized LinkedIn and email outreach campaigns, but places heavier emphasis on social selling than pure email.

AI social scheduler that writes your posts in your voice and publishes everywhere
SpecialistOffers comprehensive email marketing and CRM tools, but is less specialized for high-volume B2B cold outreach campaigns.
Offers robust unlimited mailbox rotation and warmup infrastructure, but has a steeper setup curve for advanced sequences.
Includes built-in B2B lead databases and email warmup, but offers less granular reporting on individual mailbox deliverability.
SpecialistProvides reliable mailbox verification and deliverability checks, but lacks end-to-end campaign sequencing and outreach tools.
Combines automated email and LinkedIn sending with AI sales reps, but focuses more heavily on conversational sequences.
Schedule and automate social media on 12 platforms — with AI agents that post for you
Write, schedule, automate and analyse your X growth in one place
Automates personalized LinkedIn and email outreach campaigns, but places heavier emphasis on social selling than pure email.
AI social scheduler that writes your posts in your voice and publishes everywhere