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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
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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 or variant testing (e.g., subject lines, content)
A/B Testing
A/B testing of outreach / messaging
Account / sender management (multi-account)
Account warm-up features
AI assist in copywriting/personality of outreach
AI-powered personalization / message generation
AI voice / voicemail automation
Analytics and Reporting
Analytics / Reporting dashboards
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: September 06, 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.

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
MD
Mike D.
Founder
Share
"Good stuff, great software"
What do you like best about Instantly?

Easy to use, good ROi on investment. Easy to teach employees.

What do you dislike about Instantly?

Nothing much, it is all good. I had some issues with warming up, but I probably should have read the tutorial first.

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

It is solving my issue of leadgen. Great benefit to my company.

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
DS
David S.
Founder
Share
"Great experience"
What do you like best about Instantly?

I love that they continously (almost weekly) add new features and they a great customisations of randomised email copy. Customer support is great. Very user-friendly. They have a geat knowledge base.

What do you dislike about Instantly?

The feature I lack is that I can't edit the name of custom fields once they are added. Not a big issue though.

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

Helping me generating leads, sending out personalised cold emails in bulk, helping writing with AI, warming up my email addresses and I am using it as a CRM.

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
MR
Moritz R.
Founder
Share
"Finally an Email tool which does the job!"
What do you like best about Instantly?

All mails get send out properly, so many setting making email dreams come true! There is no " wen cant send" ! We never had this high opening rates with our newsletter Marketing! Setup of the MAil accounts was also easier then we thought! Support is always also available if you need it - fast help is a big plus!

What do you dislike about Instantly?

There is nothing i dont like - instanly is perfect who wants to go big in email markeitng!

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

All Mails get send out as i expected them to do - where other companies block adresses etc. this is perfect!

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
MS
Martin S.
Founder
Share
"Instantly gets the job done!"
What do you like best about Instantly?

Ease to learn and easy to learn. Good help if needed, and gets the job done!

What do you dislike about Instantly?

So far my experience has been good, so I don't have any complaints yet.

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

Instantly is solving the problem of how to reach out to the masses using cold email, while continuously providing feedback so I can improve.

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
DR
Din R.
Founder
Share
"Best automation tool out there"
What do you like best about Instantly?

Super easy to use and great support, would recommend to anyone because it saves you a lot of time!

What do you dislike about Instantly?

Nothing tbh, if you have any problems you just write to them and they help you within 5 minutes usually!

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

Sending emails take a lot of time, they help me automate it!

Small Business (50 or fewer emp.)
Feb 05, 2024
 Source
Overall Rating:
5.0
BN
Ben N.
Founder
Share
"The BEST email sending platform to use in 2024"
What do you like best about Instantly?

Instantly.ai is the BEST email sending platform to use, it has sooo many cool features and is incredibly easy to use - especially for beginners! Their customer support team are also super friendly. I highly recommend!

What do you dislike about Instantly?

The cost of the tool is steeper than others. However, the platform itself makes it so worth the price!

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

Email Deliverability - Their automated warm up tool is a game changer.

Small Business (50 or fewer emp.)
Feb 02, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Instantly is the best tool for cold email marketing"
What do you like best about Instantly?

I like how it has a great price, and I can connect unlimited accounts for the warm up.

What do you dislike about Instantly?

Instantly is a pretty good tool I dont think there is anything bad.

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

Instantly is helping me reach prospects and scale my outbound campaigns. I can literally email 1,000 people a day everyday, all in one tool.

Small Business (50 or fewer emp.)
Feb 02, 2024
 Source
Overall Rating:
5.0
BC
Bill C.
Founder
Share
"Great support"
What do you like best about Instantly?

The support and e course that they offer is great for anyone new to email marketing

What do you dislike about Instantly?

not much................................

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

Allowing me to save time

Small Business (50 or fewer emp.)
Feb 02, 2024
 Source
Overall Rating:
5.0
KW
Karol W.
Founder
Share
"Game changer"
What do you like best about Instantly?

It's easy to use and configure. Support team is really responsive and helpful.

What do you dislike about Instantly?

I didn't experience negative aspects. So far everything works well.

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

Instantly is solving my problem with getting new clients.

Small Business (50 or fewer emp.)
Feb 02, 2024
 Source
Overall Rating:
5.0
KC
Kanon C.
Founder
Share
"Effective, convenient, and amazing support"
What do you like best about Instantly?

The best part of instantly is being able to easily launch cold email campaigns and the integrations I'm able to use. The customer support is always friendly and there if I need any help.

What do you dislike about Instantly?

I wish I could change the custom lead statuses through Zapier and maybe a few more api uses because I love to automate stuff.

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

Instantly allows me to book appointments with prospects who are interested in my services with little effort on my end. It's very easy to use.

Small Business (50 or fewer emp.)
Feb 02, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Easy to use cold- emailing tool with amazing supoort"
What do you like best about Instantly?

Very easy to use and fast setup. Inbuilt spintax and AI to speed up email campaign creation. Most important, Instantly works great for sending cold emails and you can focus more on creating good messages which convert.

What do you dislike about Instantly?

Sometimes the email warmup is disabled by mistake of their system but their support is really helpful and fast to fix the problems. During 6 months period this happened twice, so it is not a big problem.

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

Instantly solved all my cold- emailing needs and also lead generation, email verification is solved in one tool. I can focus more on messaging and even that Instantly is helping with inbuild AI. Cold emailing is great way to get more customers.

Small Business (50 or fewer emp.)
Feb 02, 2024
 Source
Overall Rating:
5.0
SO
Sergio O.
Founder
Share
"The best tool on the market"
What do you like best about Instantly?

After spending hours looking for THE tool to sent cold emails without landing in spams, I finnaly found Instantly. Since then, I just double my reply rate and I just close more deals. I recommend !

What do you dislike about Instantly?

Nothing. i really like this Tool. The support is also great.

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

The main probleme was : finding a tool with an hight deliverability pourcentage for the best price.

Small Business (50 or fewer emp.)
Feb 02, 2024
 Source
Overall Rating:
5.0
PV
Patrik V.
Ceo
Share
"Best email outreach tool soo far"
What do you like best about Instantly?

It is pretty easy to use, they helped me with setting up the whole operation, they now have unibox on mobile which i can use to reply to people. They also reply very fast when i need something. I would definetely recommend for anyone that is looking for cold email tool for B2B.

What do you dislike about Instantly?

Not much, everything works as expected sometimes unibox doesnt catch all replies but its one in 100 and its still great

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

We use instantly for B2B outreach, we needed a tool that will warm up email accounts and send email sequences to our email contacts. instantly helped us getting customers through this channell and also helped our clients in our agencies get clients as well.

Small Business (50 or fewer emp.)
Feb 02, 2024
 Source
Overall Rating:
5.0
SH
Spencer H.
Founder
Share
"Great product!"
What do you like best about Instantly?

It is a great tool for b2b outreach. Makes everything very simple all in one application from leads to warm up to sending. I use it daily.

What do you dislike about Instantly?

Nothing. I use it daily and it helps me grow my business.

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

Solving my outreach problem.

Small Business (50 or fewer emp.)
Feb 01, 2024
 Source
Overall Rating:
5.0
Jonathan K. avatar
Jonathan K.
Product Advisor
Share
"Great product"
What do you like best about Instantly?

The bulk email warmup and DKIM record checker is amazing.

What do you dislike about Instantly?

If instantly could integrate with zapier, that would be amazing.

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

Helping me send bulk emails and making it super automated.

Small Business (50 or fewer emp.)
Feb 01, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"High value"
What do you like best about Instantly?

Instantly is an amazing tool with an easy setup

What do you dislike about Instantly?

I don´t dislike anything about Instantly

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

Instantly makes it possible to reach out to a big audience and save time for my company. It also makes it possible to personalize and make great campaigns. The tracking of the campaigns is also amazing

Small Business (50 or fewer emp.)
Feb 01, 2024
 Source
Overall Rating:
5.0
SK
Sebastian K.
Founder
Share
"UI so simple it almost turns into a Video Game"
What do you like best about Instantly?

It's a simple and elegant user expierence and has all the nessesary tools to complete client aquisistion

What do you dislike about Instantly?

Im not too sure at the moment. Which only implies a good thing.

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

Helping me complete my entire client aquisition funnel

Small Business (50 or fewer emp.)
Feb 01, 2024
 Source
Overall Rating:
5.0
IO
Idoia O.
Founder
Share
"The best app for prospecting"
What do you like best about Instantly?

It allows you to reach a lot of people quickly, and also, thanks to account warming, it avoids spam in a higher percentage than other similar solutions.

What do you dislike about Instantly?

I would like to be able to assign tasks to contacts who ask me to contact them again in a certain period of time or any other action in the future.

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

It is saving me from having to contact my target audience manually, saving me time on repetitive tasks and allowing me to spend it on other things.

Small Business (50 or fewer emp.)
Jan 31, 2024
 Source
Overall Rating:
5.0
SK
Sinan K.
Founder
Share
"Easy and stress-saving"
What do you like best about Instantly?

As a young startup instantly saved us a lot of headaches, because we could setup our email campaign in just a few hours and since then reach our target group on autopilot. Normally the first half of the day was dedicated to taking cold calls and working on manual emails, but now we can concentrate on far more value-bringing activities. The Customer Support is really fast and always helps out perfectly. By now we definitely check it once a day, but only change something every 1-2 weeks

What do you dislike about Instantly?

Some more detailed scheduling and or documentation about the specifics which emails get prioritized and follow-up behaivor would be appreciated. The limitation of active-leads is a bit annoying to deal with on a small budget, but as we already made some deals over the people we contacted through instantly this constrained vanished after 1 1/2 weeks of use.

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

Right now its our only outreach tool and its more than scalable and consistent enough to only focus on this. The Beautiful thing is that although my firm is completly new in email outreach we are blown away by the resonance we got by doing out first campaign. The best thing, since we set instantly up we had basically no work-load anymore and still reach new people everyday.

Small Business (50 or fewer emp.)
Jan 31, 2024
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Great Experience with warming up the mails and nurturing the leads."
What do you like best about Instantly?

Well, Instantly has many such pros but the most that liked was the ease with which can create campaigns and target our audience effectively.

What do you dislike about Instantly?

Email Verification tool that they provide is a bit costly.

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

We were facing issues to send follow up mails due to man power. As Instantly provide automated email follow up scheduling, now it is much easier to connect with our leads and the conversion rate has improved a lot as well.