MVPs & new products
Turn an idea into a product that can be tested, launched and developed further.
Mobile app development
Apps peopleactually use.
We design, build and launch mobile products for iOS and Android — from the first product decision to production.
iOS / AndroidProductUXCodeLaunchLive products / production
We don't stop at Figma. We build the product, deal with production and get it into users' hands.
What we build
Not justan app icon.
iOS & Android apps
Mobile products built around real user flows, not a stack of pretty screens.
Real-time products
Location, live updates, multiplayer logic and other systems where the product needs to react now.
Existing products
New features, redesigns, integrations and further development of mobile products that are already live.
Case study / HIDY
From a real-world game to #4 in the App Store.
HIDY started as a real-world game coordinated through external tools. We turned it into a complete mobile product with its own game flow, real-time systems and App Store release.
Explore the case study
Mobile development capabilities
What actually goes into it.
Product logic
Define the problem, user roles, states and rules before screens turn into expensive guesses.
UX / UI
Structure real flows and design the interface around what the product needs to do.
Mobile frontend
Build responsive application interfaces and connect them to working product logic.
Backend & data
Connect accounts, product data, business rules and the systems that keep the app useful.
Payments
Implement payment and monetisation flows where the product requires them.
Notifications
Deliver product and gameplay updates at the moment users need them.
Maps & location
Build location-based flows, live positions, zones and map interactions.
Release
Prepare builds, handle review feedback and take the product through store release.
Small by design
The people in the call are the people in the code.
NotAgency is run by two developers. There is no handoff from salesperson to account manager to project manager to somebody you've never spoken to.
You work directly with the people making product and technical decisions.
Process
From idea to store
- 01
Define
What should the product actually solve?
- 02
Structure
Flows, functionality and technical decisions.
- 03
Design
Build an interface around the real product.
- 04
Develop
Turn it into working software.
- 05
Test
Real devices, real flows, real problems.
- 06
Ship
Production and store release.
More mobile work
Split & Merge
A mobile puzzle game with split-and-merge mechanics, progression, upgrades, ad monetisation and an iOS App Store release.
View the project
UNDERBPM Studio / iOS
Your studio. In your pocket.
An iOS companion to the UNDERBPM marketplace for beatmakers. View statistics, track sales and upload new beats for sale directly from your phone.
Mobile app development FAQ
Questions before the build.
01Do you develop apps for both iOS and Android?
Yes. We build mobile products for iOS and Android and decide the right release approach around the product, scope and existing systems.
02Can you build an MVP from an idea?
Yes. We can turn an early idea into a defined product flow, interface and working MVP that is ready to test and develop further.
03Do you also design the app?
Yes. Product structure, UX and UI are part of the work. We design around real states and user flows, then build what was designed.
04Can you help publish an app to the App Store?
Yes. Our project work includes production builds, store preparation, review feedback, corrections and launch. HIDY and Split & Merge both went through the App Store process.
05Do you work with existing mobile applications?
Yes. We can add features, rethink flows, redesign interfaces, connect integrations and continue development of an existing product after reviewing its current foundation.
06How much does mobile app development cost?
Cost depends on scope, platforms, backend, integrations, product states and how much needs to be defined. A brief gives us enough context to prepare a realistic estimate.
07How long does it take to build an app?
Timing depends on whether the goal is a focused MVP or a broader product and which systems it needs. We estimate the timeline after defining the scope and release path.
Have an app idea?Make it real.
Tell us what you're trying to build, where you are now and what the product needs to do.
Start a project