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Instantly Sales Engagement Software logo
Instantly
Find, Contact & Close Your Ideal Clients
4.9
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Instantly Reviews: 4.9/5 — Highly Rated

Instantly Overview
What is Instantly?

Instantly (Instantly.ai) is a cloud SaaS sales engagement and cold outreach platform with a built-in B2B lead database, deliverability tools, AI-driven sequence & reply agents, a multi-channel AI CRM, and campaign analytics. It helps teams scale cold email campaigns, automate outreach and manage lead workflows while providing inbox placement testing, domain authentication, and broad integrations.

Company Foo Monk, LLC dba Instantly.ai
Year founded 2021
Company size 51-200 employees
Headquarters Sheridan, Wyoming, USA
Instantly Categories on Findstack
Crevio E-Commerce Platforms logo
Crevio
Sponsored
5.0
(1)
Free plan available
Crevio is an AI-powered platform that runs your business while you sleep. Describe what you want to se... Learn more about Crevio
Ask Questions about Instantly
What Instantly is best for?
How does Instantly compare to ZoomInfo?
What are the pros and cons of Instantly?
Instantly Product Details
Capabilities
AI
API
Segment
Small Business
Mid Market
Freelancer
Ease of use
Beginner
Intermediate
Advanced
Deployment Cloud / SaaS / Web-Based
Support Chat, Email/Help Desk, FAQs/Forum, Knowledge Base
Training Documentation, Videos, Webinars
Languages English
Instantly Pros and Cons
Pros
  • Flat-fee pricing with unlimited sending accounts and unlimited warmup
  • Strong built-in deliverability tools (authentication, inbox placement testing, domain rotation)
  • Built-in lead database with enrichment and verification
  • Powerful AI features (sequence generation, reply agents, Copilot, AI CRM)
  • Wide set of integrations and automation capabilities
Cons
  • Higher-tier features require larger jumps in price and multiple plan types (Outreach vs Credits vs CRM vs Inbox Placement) can increase complexity and cost
  • Lack of clear UI localization/multi-language support and limited information on mobile apps
  • Details on advanced role-based permissions are unclear
  • Dependency on correct domain/email setup for deliverability; misconfiguration can degrade performance
  • Data residency/storage appears US-based which may concern non-US clients
Instantly Features
A/B Testing
A/B or variant testing (e.g., subject lines, content)
A/B testing of outreach / messaging
AI assist in copywriting/personality of outreach
AI voice / voicemail automation
AI-powered personalization / message generation
Account / sender management (multi-account)
Account warm-up features
Analytics / Reporting dashboards
Analytics and Reporting
Appointment Scheduling
Automated Dialing
Disclaimer
Our research is curated from diverse authoritative sources and meant to offer general advice. We don’t guarantee that our suggestions will work best for each use-case, so consider your unique needs when choosing products and services. Feel free to share your feedback.
Last updated: July 28, 2026
Instantly Sales Engagement Software logo
1,678 Instantly Reviews
4.9 out of 5
Small Business (50 or fewer emp.)
Feb 06, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"10x better version of Warmup Inbox"
What do you like best about Instantly?

Using OAuth instead of having to setup an App Password allowing for multiple accounts on one client. Much more affordable than alternatives and much nicer UI.

What do you dislike about Instantly?

Not super clear on the recommendations for the number of warmup emails sent or clear messaging on having unlimited warming in the pricing page.

What problems is Instantly solving and how is that benefiting you?

We send large amounts of email using Google Workspace and know how important warming is. We used WarmupInbox before but it is a pain in the ass. Comparatively, Instantly is at least 10x better.

Mid Market (51-1000 emp.)
Feb 06, 2024
 Source
Overall Rating:
5.0
JZ
Jared Z.
Owner
Share
"Amazing and fast customer service!"
What do you like best about Instantly?

I really love the ease of use with this platform for email marketing. It's a powerhouse! The customer service is also super fast and helpful.

What do you dislike about Instantly?

Can't say anything negative right now. We love this product!

What problems is Instantly solving and how is that benefiting you?

The ease of use by running multiple domains and user accounts with emails. Also the unibox is fantastic.

Small Business (50 or fewer emp.)
Feb 06, 2024
 Source
Overall Rating:
5.0
BW
Björn W.
Founder
Share
"The best outreach system that I know"
What do you like best about Instantly?

I like the combination between unlimited inboxes (for free) and very well and useful chatgpt integration. These are gamechangers

What do you dislike about Instantly?

The system is very nice, a good improvement could be automated video reachouts, like woodpecker does

What problems is Instantly solving and how is that benefiting you?

Instantly helps us to generate leads and archive message market fit

Small Business (50 or fewer emp.)
Feb 06, 2024
 Source
Overall Rating:
5.0
SM
Sep M.
Founder
Share
"Extremely badass support system on the backend."
What do you like best about Instantly?

Nowadays so many softwares make big claims about what they offer. Charging ridiculous amounts without much results. Instantly however goes and beyond in the space. From their email services to their lead finder program, they over deliver. The AI features are industry standard and compatible to my needs.

What do you dislike about Instantly?

None. I could say pricing. But comparing to the industry they are competitive.

What problems is Instantly solving and how is that benefiting you?

Sending emails in an all in one done for you system.

Small Business (50 or fewer emp.)
Feb 06, 2024
 Source
Overall Rating:
5.0
AC
Aniezka C.
Founder
Share
"Extremely useful for a solopreneur"
What do you like best about Instantly?

The seamless automated function is unmatched. I run 2 businesses at the moment, and Instantly's features allow me to get more productive work done in a matter of 1 hour, bypassing the need to hire multiple people.

What do you dislike about Instantly?

NOTHING. Instantly is an amazing app by far.

What problems is Instantly solving and how is that benefiting you?

Time management and Cold Emailing.

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
KK
Kiran K.
Founder
Share
"The best support for Email Marketing"
What do you like best about Instantly?

Two things that really stood out were customer service and the ease of use. The app,ication was perfectly built and there were a lot of articles of how to efficiently use the application right on their website so it was all really helpful

What do you dislike about Instantly?

I think the mobile version can be scaledup a bit. It has all the features but if the functionality can be improved to scheduling a campaign from the mobile then that can be a greatvalue ad. Over all a great app though

What problems is Instantly solving and how is that benefiting you?

The most worrying factor for any email marketing campaign is to beot being marked as spam. the warmup email feature is great and it gradually increased the number of email warmups ensuring that we are not marked as spam. More emails intp inboxes is more opportunity to connect withthe audience.

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
KH
Kevin H.
Founder
Share
"Instantly.ai user and customer service experience"
What do you like best about Instantly?

Instantly is an easy to use service that is cheaper than most services out there. The customer service is helpful should you stumble across any issues along the way. I use the software frequently and there are a number of features that Instantly has that can help you with your marketing campaigns. The sofware is easy to implement with your email domains and website and integrates well with most CRMs out there. I give them an A+ for their software, training, and customer service.

What do you dislike about Instantly?

There are no downsides that I can see at the moment.

What problems is Instantly solving and how is that benefiting you?

Instantly is solving the problem of sending mass emails out using multiple email domains to ensure deliverability. I also love the warm up feature to increase each email domains health score.

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Instantly does everything I need and more!"
What do you like best about Instantly?

I love this software. I've been using it for a few years now, and it just keeps getting better. Support is always really good too.

What do you dislike about Instantly?

There is nothing I don't like. It's contstantly being improved.

What problems is Instantly solving and how is that benefiting you?

I'm able to reach large numbers of prospects which enables me to book more sales calls.

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
ED
Elitsour D.
Founder
Share
"The Best Tool for Cold Email Marketing"
What do you like best about Instantly?

I would like to highly recommend instantaly.ai, it is the best platform for cold email marketing. If I were an investor I would put money on them - they work like a start-up at the highest level there is.

What do you dislike about Instantly?

So far I love everything. User over two months

What problems is Instantly solving and how is that benefiting you?

They solve the problem of warming up the emails before the marketing activity with cold emails. and help me work automatically and quickly

Mid Market (51-1000 emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
Thomas P. avatar
Thomas P.
Business Development Manager
Share
"Instantly is our businesses one-stop shop for creating targeted, email campaigns."
What do you like best about Instantly?

It's super user friendly, has great features and is well priced.

What do you dislike about Instantly?

I believe some extra features like more in-depth open tracking (tracking number of opens per user)

What problems is Instantly solving and how is that benefiting you?

Helping us reach a larger group of people we once could not think of speaking to.

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