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Written scope within 48 hours

Mobile apps that stay fast after the launch week.

We build native and cross-platform mobile apps for product teams who need store-ready releases, solid backends and a team that still answers after launch.

Nobody budgets for the hours already being lost. Tell us the outcome: you get a written scope within 48 hours.

  • 48h

    To a written scope

  • Week 1

    Clickable prototype

  • 6–14 wks

    To first release

  • 100%

    Code and IP yours

Get your free estimate

Three quick questions: scope, approach and a price range back within 48 hours. No sales call required first.

What do you need built?
When do you want to start?
Where should we send the estimate?

Answer all three questions above, then send.

NDA-friendly · IP yours from day one

Trusted by companies worldwide

  • Bloomford
  • Contractor Plus, Inc.
  • Snappy Stats
  • Ad Lunam
  • Local Buzz
  • CyberFind
  • Hellory
  • 5.0Clutch · 8 client reviews
  • 4.9Google · 18 reviews
  • Top ratedUpwork · 100+ reviews · 5K+ hours worked
  • TopTracker7K+ hours tracked with clients

Why teams call us

Three reasons a team calls us about a mobile app.

Almost every mobile app engagement we take on starts from one of these three situations. Recognise yours and the rest of this page gets more useful.

  • You need iOS and Android, not just one

    Two native codebases means two teams, two release schedules and every feature built twice. Most products cannot afford that from day one.

    One Flutter codebase, native performance on both stores.

  • A previous app shipped, then stalled

    The app is in the stores but the person who built it is gone. It still works, mostly, until the next OS update or store policy change breaks it.

    Audit, stabilise on current SDKs, then keep shipping.

  • The app needs a real backend behind it

    Push notifications, sync, payments and accounts all need a server the app can trust, not just local storage and hope.

    API, auth and backend built alongside the app, not bolted on after.

A row of phones and a tablet on a testing bench
Six phones · one release

What you actually get

What a mobile build actually hands you.

Six artefacts a mobile engagement produces, not a slide about frameworks.

  1. Clickable screens before a build decision

    A tappable prototype on your own phone in week one, so stakeholders react to something real instead of a deck.

  2. A store-ready build, not just a demo

    Signing, provisioning, and the App Store and Play Store listings handled as part of the build, not left for you to work out at launch.

  3. A release every two weeks you can install

    A TestFlight or internal track build after every sprint, with a written note of what changed and what is next.

  4. Code and store accounts in your name from day one

    Your Apple Developer account, your Google Play console and your repos, with access from the first sprint.

  5. Tests on the flows that cost you a bad review

    Automated and device coverage on sign-up, payments and anything that crashes the app, not a coverage number for its own sake.

  6. Documentation and a handover

    Architecture notes, a release checklist and a walkthrough so your team can ship updates without us.

What it costs

Three ways to start, priced honestly.

Ranges, not single numbers, because the real figure depends on integrations and migration scope. You get the exact number in writing after one call.

  • Launch

    One core journey, production-ready.

    Investment

    From mid four figures USD

    Timeline

    6–8 weeks

    • Discovery and written scope
    • Clickable prototype before build
    • Core journey in production
    • Auth, roles and admin basics
    • Your repos and cloud accounts
    • 30 days post-launch support

    For founders validating a product with real users.

    Start with Launch

  • Most chosen

    Scale

    A full product with the integrations that matter.

    Investment

    From low five figures USD

    Timeline

    10–14 weeks

    • Everything in Launch
    • Two to four external integrations
    • Payments, billing or subscriptions
    • Reporting and analytics
    • Automated tests on critical paths
    • Fortnightly demos and reports

    For teams replacing a manual process or an outgrown tool.

    Start with Scale

  • Platform

    A standing team that keeps shipping.

    Investment

    Retainer or dedicated pod

    Timeline

    Ongoing

    • Everything in Scale
    • Named technical lead
    • Multi-tenant or multi-entity architecture
    • Performance and cost optimisation
    • Monitoring, uptime targets, on-call
    • Roadmap planned quarter by quarter

    For products where the roadmap does not end at launch.

    Start with Platform

Ranges reflect projects delivered in 2025–26 and move with integrations, data migration and compliance scope. Every engagement starts with a written scope listing exactly what is included and what is not.

Our clients · reviews

Teams who trusted QalbIT

Short feedback from clients and products we work on across web, mobile, SaaS and internal tools.

  • Testimonials from long-term custom software development and SaaS product clients.
  • Covers ERP systems, B2B marketplaces, booking platforms, and web & mobile app development projects.
  • Real text and video reviews from founders, CTOs, and product teams who partnered with QalbIT for delivery.

  • Video review

    Rated 5 out of 5.
    “Working with QalbIT was an absolute pleasure. They understood our brand vision, delivered a WordPress site that is easy to navigate, and kept communication smooth throughout. I would absolutely recommend them to anybody.”
    Imdad Ali KadiwalaFounder, Netzur

  • Written review

    Rated 5 out of 5.
    “QalbIT is a fantastic dev partner. They provide quality work, good communication and go above and beyond. Fantastic work delivered by QalbIT and his team. Can’t give enough credits with regards to how they work and at which speed they do it. Top team.”
    Joost HesselberthFounder of Ad Lunam Investments PTY LTD

  • Written review

    Rated 5 out of 5.
    “I would recommend QalbIT to everybody. QalbIT has been developing all my front-end & backend systems complete to my requirements. They have excellent technical knowledge and listen very well to the needs of their customers. And above all, they are great people.”
    Wouter SantensExecutive Search Consultant at Bloomford

  • Written review

    Rated 5 out of 5.
    “They listened to my ideas and came up with a plan for development then executed that plan to completion. I liked their attention to detail and communication skills. Very responsive.”
    Osmond MwanyikyCTO, Bocsit

  • Written review

    Rated 5 out of 5.
    “QalbIT quickly integrated four platforms quickly. Square, Stripe, PayPal, and Coinbase were all successfully used. The vendor provided an active communication process, maintaining timely deadlines despite the research-heavy service. They also offered post-launch support.”
    Roshan SethiaCTO, Contractor Plus, Inc.
View all testimonials

How it runs

From first call to running software in four moves.

The same process on every engagement, whichever package you start from.

  1. Scoping call

    A working call about the outcome and the constraints. Not a pitch.

    Day 1–3

  2. Written scope & price

    Architecture options, timeline and a price range you can take to your board.

    Within 48 hours

  3. Prototype & build

    Clickable prototype, then working software in fortnightly sprints.

    Week 1 onward

  4. Launch & operate

    Deployment to your cloud, monitoring in place, then the next slice.

    Launch week

Proof

Mobile app development engagements we scoped, built and still support.

Different sectors, same process, and in each case the client owns the code.

How we work

A product engineering culture built on ownership and clarity.

The habits that decide whether software still works in year three. Here is the honest comparison: what most outsourced engagements look like, and what changes when you work with us.

How an engagement with QalbIT compares
The questionThe usual answerAt QalbIT
Who scopes itA salesperson, then a handover docThe founder and the engineer who will build it
Who writes the codeWhoever is on the bench that monthNamed senior engineers, in our office, no subcontractors
What you see weeklyA status deck and a percentageA working demo and the board it came from
When something breaksA ticket queue and an account managerThe engineer who wrote it, in your timezone overlap
If you want to leaveA migration project and a licence conversationThirty days notice · repos and IP were always yours

  • Principle 01

    Ownership over ticket-taking

    Engineers who ask why before they ask which framework. Scope questions come back before code goes out.

  • Principle 02

    Written over remembered

    Scope, estimates and architecture decisions are written down with the trade-off stated. Nobody relies on what was said on a call.

  • Principle 03

    Small over staffed

    Senior pods that hold the whole system in their heads beat large mixed teams that need a coordinator to function.

Engagement models

Flexible engagement models.

Choose how you want to work with us based on where your product is today. We help you validate, ship and then scale without forcing you into a one-size-fits-all model, and how we price projects follows the model you pick.

  • Best for defined scope

    Fixed-scope projects

    Best when requirements are clear and we can estimate precisely.

    • Clearly defined scope, milestones and deliverables.
    • Predictable budget with upfront estimates.
    • Ideal for MVPs and discrete feature releases.

    Works well with good documentation or a short discovery

  • Most chosen

    Dedicated product squad

    A cross-functional team that behaves like your in-house product team.

    • Stable team for long-term ownership and roadmaps.
    • Capacity planned monthly with clear velocity.
    • Founder involvement on architecture and key decisions.

    When software is core to your business

  • Best for ongoing work

    Time & material / Agile

    Ideal for ongoing iterations, R&D and integrations.

    • Pay for actual engineering and design time used.
    • Flexible backlog and scope, prioritised every sprint.
    • Perfect for experiments and proof-of-concepts.

    When agility matters more than fixed scope

What protects you

Five commitments that make the first engagement low risk.

The objections worth raising before you sign anything, answered up front rather than buried in a contract.

  • Free written scope

    Scope, timeline and price range within 48 hours, yours to keep whether or not you hire us.

  • IP and repos yours, day one

    Code, repositories and cloud accounts in your name under NDA, with commit access from week one.

  • Changes quoted in writing

    Added scope is priced and approved before it is built. The number never moves quietly.

  • Replacement guarantee

    If an engineer is not the right fit we replace them at no recruitment cost, with handover before they leave.

  • 30 days notice

    Monthly engagements end or scale down with 30 days notice. No annual lock-in.

Industries we build this for

Tailored software solutions built for your industry's success.

We bring patterns from multiple domains, but always adapt them to your specific context, constraints and users, never a template dropped on your business.

More services

Software development services at a glance.

From MVPs to long-term platforms, combine our core and specialised services to design, build and grow products that match how your business really works.

FAQs · Mobile App Development

Frequently asked questions

Cost, timelines, store accounts and what happens after the next OS update.

Ask us directly →
Cost is driven by how much of the app depends on a backend, how many platforms you need at once, and how much of the design already exists. Launch starts from mid four figures USD for one core journey shipped to a single store, and Scale starts from low five figures USD for both iOS and Android with two to four integrations such as payments or push notifications. You get the exact range in writing within 48 hours.
For most products, one Flutter codebase covers both stores with native performance, which means one team, one release schedule and every feature built once instead of twice. We build fully native only when a specific capability genuinely requires it, and say so upfront rather than defaulting to native because it sounds safer.
A store-ready first release typically takes 6 to 8 weeks for one core journey, or 10 to 14 weeks for a fuller app with backend integrations. Signing, provisioning and the store listings are handled as part of the build, and you get a TestFlight or internal-track build to install after every two-week sprint.
You do. The app is published under your Apple Developer account and your Google Play console, with access granted to you from the first sprint, alongside your repositories. There is nothing tied to our accounts that would block a future release if you moved to another team.
Yes, and it is a common starting point when the original developer is gone and the app still works, mostly, until the next OS update or store policy change breaks it. We audit the codebase against current SDKs first and tell you what needs updating before the next submission, rather than guessing.
If you already have a backend and an API, we build against it directly. If not, we design and build the API, auth and sync layer alongside the app rather than leaving push notifications, accounts and payments running on local storage and hope.
Store guidelines are checked against the build before submission, not discovered from a rejection email. Where a rejection does happen, and both stores reject apps for reasons outside anyone's control, we treat the resubmission as part of the release, not as scope creep.
Both are scoped as specific requirements up front: which events trigger a notification, and what the app should do with no connection, cache data, queue actions, or show a clear offline state, rather than left as a gap discovered by a user's bad review.
Often yes, and it is worth the conversation if you are maintaining two native codebases for one product. We scope it as a rebuild with feature parity checked screen by screen, not a rewrite where something quietly gets dropped.
OS updates and store policy changes do not stop after launch, so most clients keep a small standing team to handle them along with the next release. It is optional, ends or scales down on 30 days notice, and you get documentation and a release checklist either way so your team is not stuck if you move on.

Next step

Get the number before you commit.

Send the problem in two lines. You get a written scope, timeline and price range within 48 hours, free, and yours to keep either way.

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