Native or cross-platform — which should we choose?

It depends on your performance needs, budget, and timeline. We assess your requirements honestly and recommend the approach that serves the product, not a one-size-fits-all answer. For graphics-heavy or deeply platform-integrated apps, native often wins; for the many apps that are forms, lists, and content, cross-platform usually delivers faster and costs less to maintain. We will explain the trade-off in plain terms before you commit.

Can you publish to the App Store and Google Play for us?

Yes. We manage the full submission process — store listings, screenshots, privacy disclosures, compliance, signing, and release — and can publish under your developer accounts or guide your team through it. We keep up with Apple and Google's frequently changing guidelines so a surprise rejection does not derail your launch date. Staged rollouts let us release safely rather than all at once.

Do you build the backend too?

We can. Most apps need APIs, authentication, and a data layer, and we build those alongside the app so the whole system is designed and tested together rather than meeting at a fragile seam. We handle secure token storage, session expiry, and offline sync as first-class concerns. If you already have a backend, we integrate with it cleanly.

Will the app work offline?

We design for unreliable networks from the start. The app can cache data, queue user actions locally, and sync cleanly when the connection returns, with conflict resolution handled deliberately so nothing is lost or duplicated. The degree of offline support is scoped to what your product actually needs — a field-work tool needs far more than a social feed.

How do you keep the app fast and battery-friendly?

We profile startup time, frame rates, memory, and battery use on real devices — including older, lower-end hardware, not just the latest flagship. We tune the parts that affect perceived speed and avoid the background work and wakeups that drain batteries. Performance budgets are set early and checked throughout, not measured once at the end.

Can you take over or fix an existing app?

Yes. We start by auditing the codebase, dependencies, and crash data to give you an honest picture of its health, then stabilise the worst problems before improving from there. Whether the app needs rescuing, modernising, or just ongoing care, we plan the work in safe stages rather than insisting on a rebuild you may not need.

How do you handle app security and user data?

Security is designed in, not bolted on. We store credentials and tokens in the platform's secure storage, encrypt sensitive data, validate everything the app receives, and follow Apple and Google's privacy requirements for permissions and data disclosure. For apps handling payments or personal data we run a dedicated security review before submission.

What happens after launch?

We monitor crashes and usage, fix issues, and ship updates to keep the app compatible with new OS releases — under a maintenance plan that fits how active your roadmap is. Mobile platforms change every year, so an app left untouched slowly breaks; ongoing care keeps yours healthy, secure, and competitive. You decide how involved we stay.

Yes. You own 100% of the source code, the app store assets, and the intellectual property. Everything is delivered in your repositories and under your developer accounts with full documentation, so you are never locked in to us as a vendor. You can continue with your own team, another partner, or with us — your choice.

Mobile Development

Mobile apps your users actually keep

We build iOS and Android apps — native or cross-platform — that feel fast, work offline when they should, and make it all the way through app store review.

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Native and cross-platform, done right

A mobile app lives or dies on the small things: how quickly it opens, whether it remembers where you left off, how gracefully it handles a dropped connection. Users have no patience for jank, and the app stores have no patience for apps that ignore their guidelines. Building something people keep on their home screen takes more than a framework — it takes engineering judgement about performance, battery, offline behaviour, and the realities of two very different platforms.

Techies builds mobile apps for iOS and Android, choosing native or cross-platform based on what your product genuinely needs rather than what is fashionable. We design the architecture, build the screens and the services behind them, handle device testing, and manage the full submission process to the App Store and Google Play. After launch we monitor crashes, ship updates, and keep the app compatible as operating systems and devices change — so your app stays healthy long after version one.

The hardest part of mobile is everything that happens outside the happy path. A patchy train-tunnel connection, a phone that is three OS versions behind, a permission the user declined, a backgrounded app the system decided to kill. We design for those realities from the start, because a demo that works on the latest device on office Wi-Fi tells you almost nothing about how the app behaves in your customer's hand on a crowded morning commute.

Choosing native or cross-platform

There is no universally right answer to native versus cross-platform — only the right answer for your product, your budget, and your timeline. Native development in Swift for iOS and Kotlin for Android gives the smoothest performance, the deepest access to platform features, and the most polished feel, at the cost of maintaining two codebases. It is the right call for apps where graphics, sensors, real-time interaction, or platform-specific behaviour are central to the experience.

Cross-platform development with mature tooling lets a single codebase serve both platforms, which usually means faster time to market and lower long-term maintenance for apps that are primarily forms, lists, and content. The trade-off is a thin layer of abstraction between your code and the platform, which occasionally needs native escape hatches for the trickiest features. For most business and consumer apps that balance lands firmly in cross-platform's favour.

We make this recommendation honestly, based on your actual requirements rather than the tool we happen to like. Sometimes the answer is a hybrid: cross-platform for the bulk of the app with native modules where performance or platform integration demands it. Whatever we choose, we design the architecture so the business logic is testable and shared, the UI is responsive on the full range of screen sizes you care about, and the codebase is something your team can read and own.

From submission to long-term health

Getting an app approved is its own discipline. Apple and Google each maintain detailed, frequently-changing guidelines covering privacy, data handling, payment rules, and content, and a rejection can cost a week of back-and-forth at exactly the wrong moment. We manage the full submission process — store listings, screenshots, privacy disclosures, certificates and signing, and review compliance — so your launch lands on schedule rather than stalling in review.

Shipping version one is the beginning. Mobile platforms move fast: a new OS arrives every year with deprecations and new requirements, devices change shape and capability, and an app left untouched slowly rots until it breaks. We instrument the app with crash reporting and analytics from day one so we can see what real users experience, then fix what hurts and refine what works based on evidence rather than guesswork.

Ongoing maintenance keeps the app compatible, secure, and competitive. We keep dependencies current, apply security patches, adapt to new OS requirements before they become forced deadlines, and ship updates on a cadence that matches how active your roadmap is. Releases are managed carefully with staged rollouts so a bad build reaches a small fraction of users before it reaches all of them — the difference between a minor hiccup and a one-star review spiral.

What mobile development covers

Native iOS & Android

When the product demands top performance or deep platform features, we build natively in Swift and Kotlin to get the smoothest, most reliable result. Native gives full access to sensors, background modes, and the latest OS capabilities the moment they ship. It is the right choice when the experience itself is the product.

Cross-platform delivery

When one codebase makes sense, we use mature cross-platform tooling to ship iOS and Android together — faster to market without sacrificing quality. A shared codebase means a single fix lands on both platforms and long-term maintenance costs less. Where a feature needs the metal, we drop into native modules rather than compromising.

Offline & sync

Apps that work on a patchy connection, queue actions locally, and sync cleanly when the network returns, with no lost data or duplicate writes. We design conflict resolution and retry logic deliberately rather than hoping the network behaves. The result feels reliable even on a train, in a lift, or on a weak cellular signal.

Backend, APIs & authentication

Most apps need APIs, secure sign-in, and a data layer, and we build those alongside the app so the whole system is designed and tested together. We handle token refresh, secure storage of credentials, and graceful handling of expired sessions. The mobile client and its services are engineered as one product, not two that meet at a seam.

App store submission & delivery

We handle store listings, review compliance, certificates, and release management so your app gets approved and updates roll out without drama. We keep up with Apple and Google's shifting guidelines so a rejection does not derail your launch. Staged rollouts let us catch a bad build before it reaches everyone.

Push notifications & engagement

Timely, relevant push notifications and deep links that bring users back without becoming noise they mute or uninstall over. We wire up the platform messaging services properly and respect the permission the user granted. Notifications route straight to the right screen rather than dumping the user on a home page.

Performance & battery

We profile startup time, frame rates, memory, and battery use on real devices, then tune the parts that actually matter to perceived speed. A smooth, responsive app that does not drain the battery is one users keep. We test on older and lower-end hardware, not just the latest flagship.

Monitoring & maintenance

Crash reporting, analytics, and regular updates keep the app stable and compatible as new OS versions and devices arrive. We watch real-world metrics and fix issues based on evidence, not guesses. A maintenance plan sized to your roadmap keeps the app healthy long after launch.

iOS + AndroidBoth platforms covered

100%Source code you own

StagedRollouts to catch bad builds

10+ yrsAverage senior engineer experience

Frequently asked questions

Native or cross-platform — which should we choose?: It depends on your performance needs, budget, and timeline. We assess your requirements honestly and recommend the approach that serves the product, not a one-size-fits-all answer. For graphics-heavy or deeply platform-integrated apps, native often wins; for the many apps that are forms, lists, and content, cross-platform usually delivers faster and costs less to maintain. We will explain the trade-off in plain terms before you commit.
Can you publish to the App Store and Google Play for us?: Yes. We manage the full submission process — store listings, screenshots, privacy disclosures, compliance, signing, and release — and can publish under your developer accounts or guide your team through it. We keep up with Apple and Google's frequently changing guidelines so a surprise rejection does not derail your launch date. Staged rollouts let us release safely rather than all at once.
Do you build the backend too?: We can. Most apps need APIs, authentication, and a data layer, and we build those alongside the app so the whole system is designed and tested together rather than meeting at a fragile seam. We handle secure token storage, session expiry, and offline sync as first-class concerns. If you already have a backend, we integrate with it cleanly.
Will the app work offline?: We design for unreliable networks from the start. The app can cache data, queue user actions locally, and sync cleanly when the connection returns, with conflict resolution handled deliberately so nothing is lost or duplicated. The degree of offline support is scoped to what your product actually needs — a field-work tool needs far more than a social feed.
How do you keep the app fast and battery-friendly?: We profile startup time, frame rates, memory, and battery use on real devices — including older, lower-end hardware, not just the latest flagship. We tune the parts that affect perceived speed and avoid the background work and wakeups that drain batteries. Performance budgets are set early and checked throughout, not measured once at the end.
Can you take over or fix an existing app?: Yes. We start by auditing the codebase, dependencies, and crash data to give you an honest picture of its health, then stabilise the worst problems before improving from there. Whether the app needs rescuing, modernising, or just ongoing care, we plan the work in safe stages rather than insisting on a rebuild you may not need.
How do you handle app security and user data?: Security is designed in, not bolted on. We store credentials and tokens in the platform's secure storage, encrypt sensitive data, validate everything the app receives, and follow Apple and Google's privacy requirements for permissions and data disclosure. For apps handling payments or personal data we run a dedicated security review before submission.
What happens after launch?: We monitor crashes and usage, fix issues, and ship updates to keep the app compatible with new OS releases — under a maintenance plan that fits how active your roadmap is. Mobile platforms change every year, so an app left untouched slowly breaks; ongoing care keeps yours healthy, secure, and competitive. You decide how involved we stay.
Do we own the code?: Yes. You own 100% of the source code, the app store assets, and the intellectual property. Everything is delivered in your repositories and under your developer accounts with full documentation, so you are never locked in to us as a vendor. You can continue with your own team, another partner, or with us — your choice.

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