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Overloop Sales Engagement Software logo
Overloop
Effortless Sales Prospecting Automation
4.4

( 118 )

(Formerly Prospect.io)
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Overloop Reviews: 4.4/5 — Solid Choice

Overloop Overview
What is Overloop?

Overloop is a powerful sales automation platform built to help companies find and engage with potential customers. The software offers tools such as an email finder, drip campaigns, and performance tracking, empowering companies to reach out to prospects effectively and track the results of their efforts.

Company Prospect.io
Year founded 2015
Company size 11-50 employees
Headquarters Brussels, Belgium
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Overloop Product Details
Capabilities
API
Segment
Small Business
Mid Market
Deployment Cloud / SaaS / Web-Based, Desktop Chromebook, Desktop Mac, Desktop Windows
Training Documentation
Languages English
Overloop 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
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Last updated: September 01, 2026
Overloop Sales Engagement Software logo
118 Overloop Reviews
4.4 out of 5
Small Business (50 or fewer emp.)
Apr 20, 2023
 Source
Overall Rating:
4.0
AG
Verified Reviewer
Founder
Share
"Powerful outbound tool"
What do you like best about Overloop?

Easy to use interface, excellent support and customer success team. I love being able to use LinkedIn AND email outreach and I look forward to phone outreach being added too

What do you dislike about Overloop?

Can't wait for phone outreach to join in - would also be useful to be able to customise lists rather than go with the names that are already in place. I've been really impressed by the platform

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

Outreach at scale using more than one platform (email and LinkedIn) that is personalised and timed. Helps me maximise my time and drives engagement with cleints

Mid Market (51-1000 emp.)
Feb 06, 2023
 Source
Overall Rating:
4.0
María Laura F. avatar
María Laura F.
Sales Support Executive
Share
"Not only that it meets our current needs, but also they have a great support team"
What do you like best about Overloop?

The email finder extension, pretty accurate!

What do you dislike about Overloop?

It would improve the campaigns if exporting the metrics to continue working on reports was possible

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

Overloop solves the need for a company-based sales approach. Since you can find people, systematize communication through campaigns and, in turn, reflect the information in our CMR, it is a tool that in our case adapts well to what we do.

Mid Market (51-1000 emp.)
Dec 05, 2022
 Source
Overall Rating:
4.0
AG
Verified Reviewer
Founder
Share
"Easy and usefull"
What do you like best about Overloop?

In my oppinion is a easy way to create contacts lists and campaigns. The way of design campaigns is easy and usefull.

What do you dislike about Overloop?

I would like to program campaigns with more than 1 month of time

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

The first problem to all none known companies is to generate leads and contacts and overloop does it easy.

Small Business (50 or fewer emp.)
Nov 10, 2022
 Source
Overall Rating:
4.0
AG
Verified Reviewer
Founder
Share
"Good for email campaigns"
What do you like best about Overloop?

I like the the linkedin integration to build contact lists

What do you dislike about Overloop?

Open/ click rates don't always seem accurate

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

helping us execute cold email campaigns and track interest from customers

Small Business (50 or fewer emp.)
Sep 02, 2021
 Source
Overall Rating:
4.0
AG
Verified Reviewer
Founder
Share
"Very easy to use email sequencing tool"
What do you like best about Overloop?

I like how easy it is to create new sequences/workflows and how customizable they are. Also, the reporting features help me evaluate the performance of each of my email campaigns. Generally, importing leads and contacts is simple, quick and has fewer steps than most similar tools.

What do you dislike about Overloop?

When you have multiple contacts within an organization, it's difficult to check if you've emailed anyone within that organization before.

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

Prospect has been great for automating my email follow-ups. I used to spend hours every day on this, and now I don't spend any time on it at all.

Small Business (50 or fewer emp.)
Jul 09, 2020
 Source
Overall Rating:
4.0
RH
Rose H.
Founder
Share
"Powerful Tool for Sales"
What do you like best about Overloop?

I love using prospect.io with linkedin navigator for prospecting purposes. It has made sales much easier. I also like that they continue to enhance and come up with innovative ideas. I'm happy they added the "unsubscribe" option!

What do you dislike about Overloop?

The new update has taken away some options that we had in the previous version, but I have been told they are working on bringing it back. Another thing is the errors that happen here and there with emails being sent. Overall I really like using prospect.io. There's also no ability to view what links have been clicked on, only the general info that someone has clicked a link.

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

The benefits are the ability to reach targeted prospects obtained via linkedin and growing sales potential.

Enterprise (> 1000 emp.)
Jun 02, 2020
 Source
Overall Rating:
4.0
Yuri S. avatar
Yuri S.
Head Of Sales
Share
"Recommended"
What do you like best about Overloop?

I like prospect.io's feature of being able to obtain emails through Linkedin or target website, and the easy to create/modify the campaigns. Especially the feature of allowing users to add custom fields for a email template is great.

What do you dislike about Overloop?

I would love the service even more if I can get email addresses of people based in non-western part of the world, such as Japan.

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

Together with Linkedin, I find, contact, and engage with my prospects with Prospect.io. Without Prospect.io, it would have taken more of my time to find and contact a prospect, and not to mention not easy as much to follow up with them.

Small Business (50 or fewer emp.)
Nov 11, 2019
 Source
Overall Rating:
4.0
AG
Verified Reviewer
Founder
Share
"A good sales engagment tool"
What do you like best about Overloop?

In love with the contact fetching and sequence

What do you dislike about Overloop?

A lot of manual tasks that can be improved

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

Sending Sequence

Small Business (50 or fewer emp.)
Jun 13, 2018
 Source
Overall Rating:
4.0
AG
Verified Reviewer
Founder
Share
"One of the best cold email automation softwares"
What do you like best about Overloop?

Good automation software (similar to tools like Reply.io) that allows you to split test, segment, and better understand the results of your campaigns.

What do you dislike about Overloop?

The price is definitely higher than some alternatives (Mailshake is a lot cheaper) but the additional features like split testing are worth it.

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

Automating our cold email outreach. This allows us to focus on follow-ups and closing.

Small Business (50 or fewer emp.)
Jan 11, 2018
 Source
Overall Rating:
4.0
AG
Verified Reviewer
Founder
Share
"Neat product"
What do you like best about Overloop?

I've only just started using prospect.io but it's been really time saving and a neat tool. At first I was a little concerned the data wouldn't be accurate/up to date but I verified it was really quite accurate with some known companies.

What do you dislike about Overloop?

I've not really used in anger too much to uncover any issues so far.

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

Mainly collecting and exporting contacts and prospects. Traditional prospect databases are too wide, and prospect allows me to target specific niches without wading through useless data

Mid Market (51-1000 emp.)
Nov 09, 2017
 Source
Overall Rating:
4.0
AG
Verified Reviewer
Founder
Share
"Works well"
What do you like best about Overloop?

Scraping for emails is a great feature. Building campaigns is SUPER easy

What do you dislike about Overloop?

Wish it had auto-scraping for all pages within a search. Now you have to manually switch pages and hit the scraping button

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

Gaining leads through cold emailing

Small Business (50 or fewer emp.)
Apr 21, 2023
 Source
Overall Rating:
3.5
AG
Verified Reviewer
Founder
Share
"Really useful tool to find professional emails and group all contacts in one place."
What do you like best about Overloop?

The email finder tool allows me to make contacts with ease, without having to use their personal email. Plus, it helps me find all of my contacts easily, regrouping them by company.

What do you dislike about Overloop?

I thnk that the extension in Chrome occupies a lot of space on the screen.

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

Overloop provides an esay solution to find business emails

Small Business (50 or fewer emp.)
Feb 07, 2023
 Source
Overall Rating:
3.5
KR
K R.
Founder
Share
"Loved it at first but could do with some improvements"
What do you like best about Overloop?

We found it quick to add people from LinkedIn, and creating campaigns was a breeze. We have experience with using their competitors, and Overloop was much more intuitive.

What do you dislike about Overloop?

The whole credit thing isn't great, and they don't stand behind the quality of the data they provide. If an email bounces, it should be credited back to you.... after all, that's poor data.

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

Adding people from LinkedIn and then putting them through email marketing campaigns to bring in sales leads and also ensure the data we add to our CRM stays good quality.

Enterprise (> 1000 emp.)
Jan 22, 2022
 Source
Overall Rating:
3.5
Sharlotte R. avatar
Sharlotte R.
Regional Human Resources Business Partner
Share
"Your CRM is very complete!"
What do you like best about Overloop?

The automation of many functions, such as emails, marketing campaigns among other things.

What do you dislike about Overloop?

Your system is easy to use, there were no problems with the configuration.

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

The organization of material for marketing, the distribution of content for our clients.

Small Business (50 or fewer emp.)
Jul 19, 2018
 Source
Overall Rating:
3.5
AG
Verified Reviewer
Founder
Share
"Great tool for generating leads"
What do you like best about Overloop?

The tiered pricing works well for our company needs

What do you dislike about Overloop?

No specific complains, the platform is quire user friendly and easy to navigate

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

Outreach, it's been a great tool to acquire leads

Mid Market (51-1000 emp.)
May 16, 2023
 Source
Overall Rating:
3.0
NB
Naftali B.
Director Of Growth
Share
"Overall cool product, but not scalable"
What do you like best about Overloop?

Seamless integration with Linkedin Nice UI

What do you dislike about Overloop?

While UI is cool looking it is very hard to master and change cadences once they are created

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

Scalable marketing

Mid Market (51-1000 emp.)
May 09, 2023
 Source
Overall Rating:
3.0
DK
Desiree K.
Founder
Share
"Great at the start, but didn't quite meet our needs"
What do you like best about Overloop?

When I started working with Overloop, when it was still Prospect.io, I really enjoyed using it. This was back in 2016/2017. I switched to another company in 2018 and introduced prospect.io there, it was easy to use and very user-friendly. You needed minimal effort to get to the thing you needed.

What do you dislike about Overloop?

As our company grew we noticed that Overloop wasn't quite scalable nor did it really meet our needs in the end. The system was slow and couldn't handle all our data requirements.

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

For the time that we used it, it helped us to get data on potential partners to which we would reach out to using their drip campaigns/automation. These were very simple and easy to create, however getting the right people was difficult, we weren't able to extract the right details nor really find the right person.

Mid Market (51-1000 emp.)
Jan 21, 2021
 Source
Overall Rating:
3.0
AT
Anthony T.
Sales Operations Lead
Share
"Very cheap alternative for lead generation"
What do you like best about Overloop?

Super easy to use and very cheap. Serve tried many similar told and this is by far the most easiest and top of mind for people. We received a 50% discount which made it a no brainier to buy.

What do you dislike about Overloop?

Database isn't as accurate as the likes of zoominfo. Wish there was an easier way to extract bulk data as opposed to just what's shown on that one LinkedIn page (25 people)

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

Lead generation, Sales prospecting, data enrichment

Mid Market (51-1000 emp.)
Sep 15, 2020
 Source
Overall Rating:
3.0
KE
Kristen E.
Sales Account Executive
Share
"Field Sales Director"
What do you like best about Overloop?

Its fast and easy to import a list from Salesforce and or external target list from ZOOM info and set up your cadence for emails. I like that I can easily see who opened, clicked, and engaged with my email campaigns, and understand which of my campaigns are most successful (and replicate) Helpful to see what email campaigns colleagues are using and collaborate on best outreach.

What do you dislike about Overloop?

It is a bit clunky for setting up automations. (or campaigns as they used to call it) The plug in for Linkedin does not produce confident contact info, and no phone #'s only emails. Emails also don't send all at once, they are sent in batches...a few at a time.(which I did not realize at first)

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

Sending out a campaign with designated cadence is up to me to create the message I want. This is ideal for a seasoned sales rep. Harder for a new SDR. I think prospect.io could be super beneficial if they had templates based on the best email campaigns from their users...to choose from for the newbie.

Small Business (50 or fewer emp.)
Jul 17, 2018
 Source
Overall Rating:
3.0
AG
Verified Reviewer
Founder
Share
"Data Integrity Issues"
What do you like best about Overloop?

Love the interface - more so than the interface, the Google Chrome Extension, which I use frequently, when I have multiple tabs open in Google Chrome.

What do you dislike about Overloop?

From my perspective, Prospect.io data seems to have some integrity issues, meaning that I'm finding more accurate contact information from other, similar tools.

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

I use Prospect.io to identify new sales prospects, which we research, and then execute direct outreach campaigns.

Small Business (50 or fewer emp.)
Apr 30, 2019
 Source
Overall Rating:
2.5
AG
Verified Reviewer
Founder
Share
"Enterprise AE using Prospect.io"
What do you like best about Overloop?

The Chrome Extension is very simple and is incredibly easy for importing leads to Salesforce.

What do you dislike about Overloop?

It's good for commercial teams, but has proven to be very poor at servicing teams focused on Enterprise companies. When you get away from standard (first.last@, etc...) email formats and start adding things like middle initials, numbers, etc... it struggles immensely.

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

It was originally brought on to solve the problem of the large amount of time our commercial team was spending prospecting and manually inputing data to Salesforce.

Mid Market (51-1000 emp.)
Jun 03, 2018
 Source
Overall Rating:
2.5
AG
Verified Reviewer
Founder
Share
"Marketing associate increasing lead database for 1 year so far with Prospect IO"
What do you like best about Overloop?

I love that Prospect IO is a Chrome extension, so any website you go to, you can simply click the extension button, and it'll scan contact information for you. I also appreciate the LinkedIn feature. It keeps track of people you've already "prospected" - so you can stay organized and don't lose credits.

What do you dislike about Overloop?

There are often malfunctions with the software. It has trouble loading, or it simply doesn't work sometimes. I often have to uninstall and re-install the Chrome extension to get it to work again.

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

We've significantly increased our lead database by using Prospect IO.

Mid Market (51-1000 emp.)
Oct 20, 2016
 Source
Overall Rating:
2.5
AG
Verified Reviewer
Founder
Share
"No more reliable than Email Hunter"
What do you like best about Overloop?

Integrates with LinkedIn to create Prospect record in Salesforce.

What do you dislike about Overloop?

Salesforce integration is unreliable and required a workaround to even function when prospecting outside US. For a European-based product this was a disappointment.

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

Lead creation and email patterns

Small Business (50 or fewer emp.)
Jul 17, 2018
 Source
Overall Rating:
1.5
AG
Verified Reviewer
Founder
Share
"Prospect.io is not a marketing tool"
What do you like best about Overloop?

Tools to help find or qualify emails, CRM capability and good contact filtering options.

What do you dislike about Overloop?

Lack of unsubscribe feature, lac of list management and the a mail limit of 400 emails sent (total)/day.

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

Our team was looking for a drip email marketing software that could manage and score our leads. The UX was poor, there were typos and the email editor was not robust. Overall: Pricing plans modelled after how many emails you can send a day was an odd one.

Small Business (50 or fewer emp.)
Dec 31, 2022
 Source
Overall Rating:
1.0
HS
Hunar S.
Ceo
Share
"Non existent customer service."
What do you like best about Overloop?

Absolute worst customer service and product

What do you dislike about Overloop?

They charged me $300 over three months, and their customer service never replied to any message or mail.

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

none

Small Business (50 or fewer emp.)
Feb 02, 2022
 Source
Overall Rating:
1.0
EM
Ernesto M.
Ceo
Share
"one word! DISHONEST business"
What do you like best about Overloop?

dishonesty kills any good features overloop has

What do you dislike about Overloop?

very poor customer service, North American customers only receive a few hours of customer service as overloop is based in Europe and only follow their hours of operations

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

email delivery, I would never recommend this platform to anybody

Mid Market (51-1000 emp.)
Dec 13, 2021
 Source
Overall Rating:
1.0
AG
Verified Reviewer
Founder
Share
"Was great for a long period, then had stopped using because of bugs"
What do you like best about Overloop?

Overall the software can help you save a lot of time, it takes a little time investment up front but saves a lot of manual work.

What do you dislike about Overloop?

Had these bugs which made me stop using it: - Always disconnecting my email addresses and not working, and didn't notice it wasn't working for a while. - Their typing field crashes a lot, cutting/pasting/indenting is pretty buggy - Search function in the app doesn't always work - Pretty slow functions - Sometimes no answer to a question about bugs

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

I used to fill a lot of automation gaps in my sales process. When it was working a little smoother, it was great to save time on prospecting clients.

Small Business (50 or fewer emp.)
Apr 17, 2018
 Source
Overall Rating:
1.0
AG
Verified Reviewer
Founder
Share
"Has promise, but a long way from being market ready"
What do you like best about Overloop?

Hugely responsive customer support team. Very easy to chat with and helpful with answers. It's easy to upload lists, and they offer an email verification service that checks for invalid addresses on upload.

What do you dislike about Overloop?

Honestly, there's almost nothing to like. The UI is challenging, the system behaves unexpectedly (eg. you think a campaign is paused or archived but it keeps sending emails), you can't schedule multiple campaigns in advance because one contact can't exist in multiple campaigns, there's a limit of 400 emails sent per day (which is usually fine but can be frustrating in certain circumstances), there's no unsubscribe option/link, there's no clear indication who has received a campaign once the last email has been sent, it doesn't show you lists of who bounced, responded, clicked. It's really only in its early stages. There are numerous typos throughout the application making it feel unpolished and not market ready.

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

We need a reliable email service provider that integrates with the rest of the marketing stack .