Overview

About SEM Nexus

We are the nations hottest startup mobile app development and marketing agency. We've helped launch a variety of mobile apps and web companies from their inception. We can attribute a lot of our success to our affordable pricing and agile process, which has made us capable of attributing more of the clients budget to growth. We are always willing to adapt to the market, and are always at the forfront of the mobile app scene. In the recent months, we've leveraged the power of AI to improve our processes, and have excelled at development of AI applications.

What clients say

Review Analytics of SEM Nexus

Every review is verified through Goodfirms before it's published.

4.217 Verified Reviews
Quality4.2
Schedule & Timing4.2
Communication4.2
Overall4.2
Review Summary
Summarized from 17 verified reviews · Updated August 2026
Clients report mixed experiences with SEM Nexus. Positive reviews highlight professional service delivery, responsive communication, attention to detail, and measurable marketing results. Several clients praise the team's availability and ability to execute on commitments. However, some clients describe inadequate technical performance, budget concerns, and disappointing project outcomes, citing communication breakdowns post-onboarding.
✦ AI-generated summary. May not reflect every review.
Detailed Reviews of SEM Nexus
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What reviewers mention most

Mason Kalaty
Mason Kalaty, Founder at UptickVerified Review
Posted on Aug 16, 2023

Effective work with an awesome team

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital Marketing

My experience with SEM Nexus was stellar to say the least. From the start of the project we were assigned a campaign manager who really dedicated himself to us and our needs. Communicating with the team was a breeze as they were very responsive and ready to help. Overall the results of the campaign were even better than anticipated and I’m very thankful we decided to work with SEM Nexus on this.

Jerrame SadowskiVerified Review
Posted on Aug 8, 2023

Creating of the BOHAV mobile APP and Marketing

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Mobile App DevelopmentDigital Marketing

Well from my experience with SEM Nexus it is going smoothly overall, and we have been designing and doing upgrades to the BOHAV App non-stop this year. I personally have seen some reviews on this goodfirm site and I think people should know that in business like APP design and Marketing mistakes can and will happen but that’s from any company you deal with. The best companies own their mistakes and fix them and that’s all anyone can ask of them. Were all human after all. I look forward to expanding our app with the SEM Nexus team.

AnonymousVerified Review
Posted on Aug 8, 2023

Creating of the BOHAV mobile APP and Marketing

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Mobile App DevelopmentDigital MarketingArtificial Intelligence

Well from my experience with SEM Nexus it is going smoothly overall, and we have been designing and doing upgrades to the BOHAV App non-stop this year. I personally have seen some reviews on this goodfirm site and I think people should know that in business like APP design and Marketing mistakes can and will happen, but that’s from any company you deal with. The best companies own their mistakes and fix them and that’s all anyone can ask of them. Were all human after all. I look forward to expanding our app with the SEM Nexus team.

Anonymous
AnonymousVerified Review
Posted on Jul 27, 2023

The most unprofessional firm. Will drain your marketing budget.

Overall rating1.0
Quality1.0
Communication1.0
Schedule & Timing1.0
Digital Marketing

We onboarded Sem Nexus for online paid ads and influencer marketing, with a total budget of $20,000 - $5000 of which was their monthly fee, and $15k allocated as marketing budget. In the first week they conducted ‘market research’ which was top level Googling, and was not heavily focused on our target market but instead a more broad, US-focused audience. In the second week, they ‘researched’ which ad networks could be used, which again was top level Googling, and did not include any performance analysis into such ad networks, the only wrote a 2-3 line outline of the ad network descriptions. Our marketing interns did such work in just 2 business days. It then took Sem Nexus 4 business days to set up accounts, which at most takes quite literally 5 minutes to set up per ad network. They promised to refund the $15k unspent marketing budget. They are now ignoring all communication attempts. We can only assume Michael Kordvani and SEM Nexus intend to keep our money.

Sharon Kohanim
Sharon Kohanim, Founder at The LoveryVerified Review
Posted on Mar 29, 2023

Great Experience, Great Team, Professional & Hardworking! Highly Recommend For Digital Marketing

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingSEOPPCInfluencer Marketing

SEM Nexus built out and ran a successful multi-channel marketing campaign for us. We’re very happy with the results so far. We have done Facebook & Google ads with them so far since June 2022. We worked with Wiam as our project manager. The CEO Mike was also a part of the project. They're super knowledgable and responsive. Sales are up too!

Louisa Summerfield
Louisa Summerfield, Business Liaison at Foodsnapp LtdVerified Review
Posted on Mar 27, 2023

DREADFUL they are inadequate in every aspect. Technically incompetent. Money grabbers.

Overall rating1.0
Quality1.0
Communication1.0
Schedule & Timing1.0
Mobile App Development

They were suppose to create a social media app like Instagram but just for food, they were way off target with deadlines and spent months correcting things that were technically at error then complained to us that they were doing this "extra" work for free, these guys are technically way out of their depth they simply don't have any technical expertise, the lead CTO Marco talks over you and can't communicate at all, the CEO Mike just ignores emails and only gets involved once the customer is literally begging him to intervene and even then he puts blame on the customer, annoyed that his team are correcting the fundamental errors as if they are doing us the customer a favour. Get this - we have a social media app (or supposedly) that can only take 2000 users and an admin portal that doesn't store user data such as their email. We spent in dollars 44K and we're spending another 40K correcting the source code to enable more users. DON'T EVER USE THIS COMPANY!

Vladislav Dementyev
Vladislav Dementyev, Project Manager at ExnessVerified Review
Posted on Jun 16, 2022

Satisfied Mobile App Growth Marketing And Development for Financial Services Company

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Mobile App DevelopmentDigital MarketingSEOPPCInfluencer Marketing

The results of the engagement have been promising so far. Sem Nexus, Inc. follows a smooth workflow, and they continue to impress the client with their SEO expertise. At the moment, there is no room for any improvements.

Jerid HeiseVerified Review
Posted on Dec 15, 2021

They where great at what they do I’m glad I worked with them

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingSEOPPCInfluencer Marketing

Skylar was fast with communication and getting me a promotional campaign I was very impressed with her hard work. I will definitely recommend them to a friend

Anthony Roque, Realtor
Anthony Roque, Realtor, Real Estate Agent at at EXIT Realty Corp. InternationalVerified Review
Posted on Jul 30, 2021

SEM Nexus is a SOLID choice

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingSEOPPCInfluencer Marketing

I have been only working with SEM Nexus for 2 months, but they have been great to work with and have been proposing ideas that not even my app development company was aware of. I am glad that I hired a separate marketing company to help launch my new app. I would highly recommend them for their services. All the deliverables received thus far have been very professional.

Justine SinclairVerified Review
Posted on Apr 30, 2021

CEO

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingSEOPPCInfluencer Marketing

Great talented young team knows how to deliver the service promptly and professionally,@ job done well 👌.

Lief LarsonVerified Review
Posted on Sep 23, 2020

Successfully Launched Multiple Apps with SEM Nexus

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingMobile App DevelopmentSEOPPC

Our life insurance technology company Jenny Life, Inc. successfully launched multiple native apps in both Google Play and Apple AppStore with the help of SEM Nexus, including the app description, imagery, and optimizing keywords for ASO (app store optimization) so folks can find us when searching for apps like ours. The team at SEM Nexus were great to work with, effective, and came in on budget (at value).

Iryna Korolenko
Iryna KorolenkoVerified Review
Posted on Sep 18, 2020

Very unpleasant ex

Overall rating1.0
Quality1.0
Communication1.0
Schedule & Timing1.0
Digital MarketingSEOPPC

My experience was terrible. They literally lied that they provided the results they promised in their proposal which they did not.... and when i reported this to the ceo, they said it was me who denied multiple versions of their work which was ONE only, and that I delay the process. I requested them to refund what i paid-if they refuse i will be disputing the transaction through my bank with all the relevant documentation.

Ben Davoodzadeh
Ben DavoodzadehVerified Review
Posted on Sep 18, 2020

Exceptional experience!! Very professional!!

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Mobile App Development

They were incredibly resoonsive and helped us grow our business massively through a combination of SEO and Google Ads PPC. The team was always willing to address any issues we had. We would definitely recommend them.

Nathan Kashizadeh
Nathan KashizadehVerified Review
Posted on Sep 15, 2020

My increase in marketing = an increase in sales

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingSEOPPC

I’ve been looking for a company to use to enhance my company’s marketing via apps. Wasn’t sure who to go to so I started asking around and a close friend of mine recommended SEM Nexus. After the first discussion with them, I knew that this was a group that I wanted to work with. I’ve been working with them for some time now & have only seen a growth in my company’s sales since working with them.

Joe Nitzani , Sales Manager at at Polo Gem Co.Verified Review
Posted on Sep 15, 2020

Couldn’t be

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingSEOPPC

If Only every company I ever hired I ever hired were so perfect my life would be significantly easier and my business would be significantly more profitable. I’m so pleased

Focus

Service Focus of SEM Nexus

How the team's effort is distributed across services.

40%20%20%14%

Industries Focus

100%

Client Focus

Small Business100%

Executive Interview

Executive Interview of SEM Nexus

Mike Kordvani
Mike Kordvani
CEO
Visit Profile

Kindly share your feedback on how Goodfirms has been doing so far in increasing your visibility among potential clients.

Very effective social proof and a great source of traffic.

Please introduce your company and give a brief about your role within the company?

We are the nation's hottest startup mobile app marketing agency. We've helped launch a variety of mobile apps from their inception. We can attribute a lot of our success to our affordable pricing and agile process, which has made us capable of attributing more of the client's budget to growth. We are always willing to adapt to the market and are always at the forefront of the app marketing scene.

I’m the Founder/CEO and am responsible for our growth.

Mention the objectives or the parameters critical in determining the Digital Marketing Strategy for a client.

Mobile apps are all unique to a specific category. What works for a dating app will not be effective for a game, and vice versa. It's important to understand the estimated user acquisition cost, critical mass, ARPU, and geographic constraints of an app before proceeding with a strategy.

How does your company differentiate itself from the competition?

For one, we are not a digital marketing agency, we’re a mobile app marketing agency. The process, while similar, has a unique twist on almost every medium involved.

Furthermore, we emphasize a focus on assisting startups. We do not aim to “milk” high-value clients, but rather to take an MVP style product, and build a minimum viable user base at the tightest budget possible.

What industries do you generally cater to? Are your customers repetitive? If yes, what ratio of clients has been repetitive to you?

Our industry is largely b2c/DTC mobile apps. Customers typically run the lifespan of 3-6 months, in which we prove whether the app is viable or not. After which, and if it is viable, we provide data on long term growth and move forward with a long term partnership with the client.

Please share some of the services that you offer for which clients approach you the most for?

  • ASO
  • Influencer Marketing
  • Mobile App UA digital ad campaigns
  • App Analytics

What do you find to be some of the most key factors for running a successful agency in the field of Digital Marketing?

Focus on the client's success, yours will come in time as you build a reputation of providing a great and honest service.

What are the key factors that you consider before deciding the cost of a project?

CPI, scope, and goals. Some apps just want to prove the concept, others want to go for gold. There’s also the niche: gig economy apps are so expensive even if you’re just trying to build a minimum active user base.

What kind of payment structure do you follow to bill your clients?

Monthly retainer + 10% ad spend.

What is the price range (min and max) of the projects that you catered to in 2020?

$10k-$100k, it's usually around 30-50.

Name a couple of activities that you think provide the best ROI in terms of benefit/impact when it comes to different areas of Digital Marketing.

Digital advertising on Google is always a cornerstone of any campaign, especially if you are ROI focused. That being said, things like ASO/SEO, social influencers, and social media ads are all great supplements.

Where we are

Locations (1)

Offices where SEM Nexus operates.

Headquarter
United States

United States

243 W 30th Street
NYC, New York 10001
516-983-7771