SAP to open-stack ERP migration
Manufacturer, 500+ employees. Phased migration off SAP ERP onto an open stack with custom modules — run in stages while the plant kept working.
- 0 downtime
- 8 mo migration
- −40% on licences
Mobile app development for products that have to survive the store review
The app is the easy part. The budget goes on everything around it: store review, offline behaviour, payments, push permissions and the OS updates that arrive whether you planned or not.
What we can show you
Mobile
What mobile app development services actually include
Screens are maybe half the work. The other half is store delivery, offline rules, payments and the maintenance nobody quotes for.
Cross-platform by default, native where it earns its cost
One codebase for iOS and Android is the default because the saving is real: a single team, a single release cadence, and shared logic with a React web product. For standard product interfaces the result is indistinguishable from native to the person using it.
Native stops being optional when the app is graphics-heavy, uses AR, processes media, or lives deep inside OS features. In those cases we say «go native» and lose the cheaper deal, because the alternative is a project that fights its framework for a year.
When to build a mobile app at all
When the job is done away from a desk, needs the camera, GPS, push or offline, or when the store itself is a distribution channel you need. If the honest answer is «a responsive web app would do this», that costs less and we will say so on the first call.
Signals a mobile app is the right investment
- your users work in vans, warehouses or on site, not at a desk;
- the flow needs camera, scanner, GPS, push or offline;
- you need both stores on one budget and one release cadence;
- there is a React web product to share logic and types with;
- someone will own updates after launch, or you want us to.
Price
From $18,900
Timeline
6–8 weeks to both stores
Payment
50/50 by milestone
Comparison
One cross-platform app or two native ones
The honest comparison, including the cases where native wins and the project costs you roughly twice as much.
Criterion
Two native appsCross-platform (React Native or Flutter)
Cross-platformTwo native apps (Swift + Kotlin)
Team and release cadence
Two teams, two cycles
One team, one cycle
Cost of the same roadmap
Roughly double
One budget
Standard product UI
Best possible
Indistinguishable in practice
Graphics, AR, media processing
The right tool
Fights the framework
Deep OS integration
Direct
Native module per feature
Shared logic with a web product
None
Types and business rules shared
When it wins
Platform-defining or graphics-heavy apps
Products where features matter more than platform tricks
Process
The work that is not the screens
Four areas that decide whether an app ships on time — and none of them appear in a design file.
Store delivery
Submission and the review back-and-forth under your developer accounts, staged rollouts, and the metadata that reviewers actually check.
First submissions get rejected for predictable reasons: permissions without justification, account deletion missing, payment rules. We handle those before they cost a week.
Offline and sync
Conflict rules agreed before the first screen: what wins when the same record changed in two places, what queues, what retries, what the user sees while it waits.
Retrofitting offline into a shipped app is a rewrite, which is why it is a scoping question rather than a later feature.
Payments and subscriptions
In-app purchases with server-side receipt validation, or external payments where store rules allow. Reconciliation is part of the work, not an afterthought.
Store commission and payment provider fees are yours and paid at cost.
Devices, crashes and updates
A device matrix that includes the cheap Android your users actually own, crash reporting and performance budgets from the first build.
Mobile decays faster than web: OS versions, store policies and dependencies move constantly. Care from $790 a month exists because an unmaintained app breaks on its own.
Why us
Why founders bring mobile products to us
Four things we can prove, rather than four adjectives.
Your accounts, your keys
Developer accounts, signing certificates, repository and analytics stay in your name from day one. IP is assigned at delivery with a documented chain of title.
Fixed price, fixed date
Scope is written into the SOW with an out-of-scope list, and on packages with a date commitment we keep working at no extra cost if we miss it for reasons on our side.
We will tell you not to build it
If a responsive web app or a no-code tool does the job, that is the recommendation. Losing a small deal is cheaper than delivering a product nobody needed.
Maintenance priced honestly
Care plans from $790 a month cover OS versions, store policy changes and dependency updates — the costs that surprise first-time founders three months after launch.
Industries
Mobile appsfor your industry
Mobile lands first where the work happens away from a desk: drivers and warehouses in logistics, agents in property, technicians in field service.
- IT companies and digital agencies
- Insurers and brokers
- Lenders and microfinance
- E-commerce
- Wholesale and distribution
- Manufacturing
- Freight and forwarding
- Clinics and medical centres
- Dental
- Car dealers and service centres
- EdTech
- Legal and consulting firms
- Equipment rental
- Real estate agencies
- Property developers
- Travel and events
- Beauty and wellness
- Construction and renovation
FAQ
Mobile app development questions
Seven answers that usually replace a discovery call.
How much does mobile app development cost?
From $18,900 for a focused first version on both stores; $35,900 and up for a product with payments, offline sync and integrations. Hourly work is $28–55 by role.
Cross-platform or native?
Cross-platform unless the app is graphics-heavy, uses AR or lives deep inside OS features. We recommend native when it is right, even though it is the more expensive project for you.
React Native or Flutter?
React Native when you share code and hiring with a React web team; Flutter when the UI is highly custom and the team knows Dart. See React Native and Flutter.
Do you submit the app to the stores?
Yes, including the review back-and-forth, under your developer accounts, with staged rollouts.
What about offline use?
Sync and conflict rules are agreed before the first screen. Retrofitting offline into a shipped app is a rewrite, so it belongs in scoping.
What does maintenance cost after launch?
Care from $790 a month: OS versions, store policy changes, dependency updates and crash triage. Mobile decays faster than web, so this is a real line in the budget.
Who owns the accounts and the code?
You do, from day one — developer accounts, certificates, repository and IP. Nothing is held as leverage at renewal.
2–4×
faster on the code-writing share
in 3 weeks
from idea to MVP
230+
projects delivered
17 years
of engineering experience
Work
Work we can show you
SMARTWILL
Digital inheritance service (Web3)
AIRDEVELOPPA
Indoor air quality finder driven by sensor data
CAR5
Car-sharing app
APP.DENTAL
Cloud CRM for dental clinics
NEXORA
Warehouse and logistics management platform
As-built docs
Digital as-built documentation
EX211
Telegram Mini App for currency exchange
SMARTWILL
Digital inheritance service (Web3)
Not sure whether you need an app or a better mobile web?
Describe the flow and who uses it. You get a platform recommendation with the reasoning — including «you do not need an app» when that is true — and a fixed quote for the first version.