ASO agency review · September 2026
SEM Nexus is a New York agency led by Michael Kordvani that develops iOS, Android and AI apps and sells app marketing, including ASO, user acquisition and influencer campaigns, to the same clients. It markets itself as the nation’s hottest startup app marketing agency. Development and marketing under one roof sounds convenient. Here is why it produces the wrong advice about your listing.
Thinking about hiring SEM Nexus for ASO? Avoid. Let me explain the developer-marketer conflict.
Gabriel Machuret · September 2026SEM Nexus is a hybrid: a mobile app development shop that also sells app marketing. Custom iOS and Android builds on one side, ASO, paid acquisition, influencer campaigns and, lately, answer engine optimisation on the other. The pitch is that a company that built your app understands it well enough to market it. That sounds sensible. In practice, it creates a conflict that lands squarely on the advice you get about your store listing.
A developer earns from building. Features, releases, redesigns, new platforms. A marketer earns from retainers that keep growing. Put both in the same company and every marketing conversation has a development conclusion available. The listing is underperforming? Perhaps the onboarding needs a rebuild. Conversion is low? A redesign would help. Retention is weak? A new feature set. Each of these is sometimes true, and each of these is billable by the same company that just told you it was true. An independent ASO consultant has no such option. If your listing is the problem, the listing is what gets fixed.
There is a second effect. Development shops are project businesses: they win a build, deliver it, and need the next one. Marketing retainers are the way to keep a client paying between builds. So ASO at a dev-shop-plus-agency is structurally a bridge: it keeps the relationship warm until the next version is scoped. That does not make it bad work. It makes it work with a purpose beyond your search installs, and the purpose shapes what gets recommended.
Then there is the breadth. Development, ASO, paid, influencers, AI apps, answer engine optimisation. A company doing all of that in New York with a modest team is not deep in any of them. ASO in particular is a craft that rewards a decade of watching the stores, and it is hard to accumulate that decade while also shipping React Native builds. Your listing gets the marketing team’s attention between projects, following a process, with a report that always has something else to talk about.
Compare that with hiring one consultant who cannot build anything and would not know how. If your listing is the problem, I fix the listing. If your product is the problem, I say so, and I have nothing to sell you for it. Teardown, rewrite, one screenshot test, handover. Dated, and containing nothing that needs to be built. The fee is fixed, ends, and contains no bridge to a rebuild.
In fairness: for a startup that needs an app built and wants the same team to launch and market it without hiring twice, SEM Nexus offers a convenience that has real value early on, and their directory reviews reflect clients who appreciated it. If your app already exists and your listing is what needs work, buying ASO from a developer means buying advice from someone with a rebuild on the menu. Send me their proposal and I will show you what the listing needs with nothing else attached.
02 — SEM Nexus vs one consultant
Same goal: more installs from searchOption A — SEM Nexus
Builds, then marketing, then the next build
A rebuild proposal
A marketing specialist between projects
Monthly retainer
≈ $48,000 at a typical $4k/mo, before any build
Marketing report with development notes
The next version gets scoped
Option B — Gabriel, direct Live
Store listing work, only
I say so. I have nothing to sell for it.
Gabriel, on every deliverable
Fixed scope, fixed fee
$9,500, one engagement
A changelog: what shipped, what it did
Your team runs ASO without me
03 — Where a dev-shop marketing retainer actually goes
Typical agency economics · illustrative, not their booksDevelopment bench. Engineers and designers who need the next build. Marketing retainers keep them fed between projects.
Sales & directory marketing. Clutch, GoodFirms and DesignRush profiles, plus the pitch team that converts them.
Account management. Your point of contact across build and marketing, steering both conversations.
New York office & margin. Overhead, tools, and the owners’ return.
Hands on your listing. The marketing specialist actually changing your store. About a quarter.
04 — What ‘we built it, we know it’ says vs what the advice becomes
Three things to translate before you signOne roof, two revenue lines, and every marketing problem has a development answer available. Independent advice about your listing is structurally impossible when a rebuild is on the menu.
Conflict of interest, built inA slogan. Startups are the ideal client for a dev shop because they need builds and then need marketing. The heat is in the pipeline, not in the store results.
Startups are the funnelNew lines appear as fast as the industry invents them. Breadth that wide in a modest team means depth nowhere, and ASO is a depth discipline.
Breadth without depth05 — Red flags in a developer-marketer proposal
If you see three, send it to meA redesign, feature or rebuild recommended in an ASO proposal
ASO priced as a bridge between development phases
Six or more service lines from a modest team
The marketing lead is also the project manager on your build
‘Hottest’, ‘#1’ or similar claims with no named source
A minimum term that ends when the next build starts
06 — Should you avoid SEM Nexus for ASO?
Honest answer: depends who you are07 — Fair play — what SEM Nexus genuinely does well
Credit where it is due07 — Before you sign
I will tell you what your listing needs with no development angle, whether your product or your page is the problem, and quote the listing work as a fixed fee. If you genuinely need a build-and-launch team, I will say so.
08 — Objections
They understand the code. The store listing is understood by watching your category’s search results and reviews, which any good consultant does on day one, and which has nothing to do with who wrote the app.
Then you should hear that from someone who cannot sell you the work. I will tell you plainly, and you can hire a developer with an independent brief.
No. I do the listing, the keywords, the creative testing and the training. That is the whole point.
Yes. I compete for ASO work. That is why the argument is about the developer-marketer conflict, not competence, and why I have said where their model has value.