AI-native product studio · Mobile apps

The AI-native product team for your mobile app.

Senior mobile product people, working with AI at every step, embedded in your company. We research, spec, build, ship and grow your iOS and Android app in weeks, not quarters.

Book a strategy call See how it works

30 minutes with the founder. You leave with three specific growth bets for your app, whether or not we work together.

Habit tracker app · 400K MAU · Week 14

North-star: day-30 retention +2.1 pts vs. control

Research

1,284 reviews and 3 cohorts analysed. Streak loss while travelling is the top churn driver.App Store · Google Play · Amplitude

Done

Spec

“Streak Freeze”: requirements, 3 variants, success metric: day-30 retention.Approved by client · Jira APP-913

Approved

Build

iOS and Android implementation, 38 tests, analytics events wired.GitHub · PR #482 · senior review

In review

Ship

Build 4.12 in staged rollout to 10% of users. Crash-free sessions 99.8%.App Store Connect · Play Console

Live

Grow

Store keyword test in 3 markets. Release notes in 9 languages. Win-back message to lapsed users.Apple Search Ads · Braze

Running

Day-30 retention, cohort vs. control

41.3% ↑ 2.13 weeks after rollout

This week’s team

PLProduct lead· ModulusAI-assisted

SESenior iOS/Android engineer· ModulusAI-assisted

GRGrowth lead· ModulusAI-assisted

CLHead of product· Client

One week of a typical engagementIllustrative. Real client results on request

Fourteen years in mobile. Built by the team behind GrowASO, the app store optimisation platform.

2,986+app developers on GrowASO

1.2M+apps indexed and analysed

#mobile app exits

Client logo

What we do

Everything between “what should we build?” and “did it work?”

Most apps already have the data to know what to build next. It gets lost between analytics, product, engineering and marketing. We own the whole chain, inside the tools you already use.

Research

We read every review, ticket and cohort, with AI doing the reading, and surface the few things worth building.

Amplitude

Mixpanel

Zendesk

Spec

Each idea becomes a detailed requirement with a success metric. You approve before anything is built.

Jira

Linear

Figma

Build

Senior engineers write the feature and its tests in your repo, using AI to move at several times the usual pace.

GitHub

Swift

Kotlin

React Native

Ship

Staged rollouts to both stores, crash-watched. You make the go / no-go call; we handle the rest.

App Store

Google Play

Sentry

Grow

Store listing tests, lifecycle messages and paid campaigns, plus a weekly report on whether the metric moved.

Search Ads

AppsFlyer

Braze

Then it repeats. What we learn in Grow decides what we research next.

Analytics

Google Analytics

Firebase

Amplitude

Mixpanel

Customer voice

App Store reviews

Play reviews

Zendesk

Intercom

Plan & build

Jira

Linear

Figma

GitHub

Release

App Store Connect

Play Console

Expo

Sentry

Growth

Apple Search Ads

AppsFlyer

Braze

Meta Ads

Why Modulus

Faster than hiring. More accountable than an agency.

An agency ships a scope. A new hire takes a quarter to find. We start in two weeks, work from your data, and every piece of work carries the metric it’s meant to move.

	Hiring in-house	Traditional agency	Modulus
Time to first shipped feature	3 to 6 months to hire, then onboard	6 to 12 week statement of work	Two weeks
What you pay for	Five senior salaries, plus management	Hours, or a fixed scope	A monthly team, a fraction of one senior hire
Who decides what to build	You	You, then they estimate it	Your data, then you approve
Scope	Whatever you can staff	Build only	Research to spec to build to ship to grow
Accountability	Headcount	Delivering the scope	The metric, reported weekly

Where this goes

Today, senior people with AI in every step. Next, agents that run the loop and people who review it.

Every engagement turns work we do by hand into something an agent can do. Our services fund that platform. The platform is what in-house product teams license next.

NowLive

AI-native product team

Senior people, embedded in your company, using AI at every step of research, spec, build, ship and grow.

PeopleAI

NextIn development

Agent-run, people-reviewed

Agents read your data, draft specs, write code and run growth tests. A named senior person approves every spec, merge and release.

PeopleAI

ThenPlatform

Your team, our agents

The same agents, licensed to in-house product and growth teams. Mobile first, then any software product.

Your peopleOur agents

Bars show the intended share of work per stage. Illustrative.

Founder photo

Founder

Fourteen years shipping, growing and selling mobile apps.

“We spent two years building software that told app teams what to build next. AI can now do much of the building too. So we’re becoming the team that does all of it, and building the platform that will do it for everyone.”

FNFounder nameFounder & CEO

Education: MIT
Previously: Samsung · Bain & Company
Exits: # mobile apps
Founded: GrowASO
In mobile since: 2012
Apps shipped: #

Work with us

Three ways to start.

Growth audit

An outside read of your app before you commit to anything.

We connect to your analytics, reviews and store listing
Retention, conversion and store-visibility teardown
A ranked, sized list of growth bets

2 weeksFixed fee

Embedded team

Most chosen

Product lead, senior mobile engineer and growth lead, running the full cycle on your live app.

Research, spec, build, ship and grow, every week
Work lands in your repos, tools and store accounts
Weekly report against your north-star metric

OngoingMonthly

New app

From idea to a live app on both stores, with its first growth loop running.

Market research and positioning
Design and v1 build for iOS and Android
Store launch, listing optimisation, first campaigns

~12 weeksFixed scope

Three growth bets for your app. In thirty minutes.

01Send us your app’s store link
02We review your listing, reviews, funnel and competitors
03You leave the call with three ranked, sized bets

Book a strategy call hello@modulusandco.com