AWS mobile app development company · EonTech Poland

AWS mobile apps that run
lean and secure.

EonTech is a Poland-based AWS mobile app development company and AWS cloud consulting partner. We build iOS and Android apps on Amplify, AppSync, Cognito, Pinpoint, Lambda, and S3 — plus the AWS architecture, migration, cost tuning, and security underneath. Everything runs in your account. You keep every key.

Start your project Cloud & DevOps
  • Mobile + backend, one team
  • Runs in your account
  • GDPR · ISO 27001
Your account
Workloads, IaC, and keys stay with you
Cost-aware
Spend is visible per team and tuned with real numbers
Security-first
Least privilege and encryption as defaults, not extras

Why this page exists

A working guide to shipping mobile apps on AWS

Almost every serious iOS and Android app today has an AWS backend behind it — but the two halves are usually bought separately. A mobile agency ships the app and hands off a REST spec; a cloud consultancy runs the AWS account and never touches Xcode. The seam between them is where identity gets messy, offline sync breaks, and the AWS bill quietly triples.

EonTech is a Poland-based full-cycle engineering agency that closes that seam. As an AWS mobile app development company, we field iOS engineers, Android engineers, and AWS cloud engineers inside the same squad. As an AWS cloud consulting partner, we run architecture, landing zones, migration, cost tuning, and security for the accounts our mobile apps live in — plus the accounts of clients who never ship a mobile app at all.

The rest of this page is a practical brief for CTOs, VP Engineering, and product leads comparing an AWS-native mobile partner against two-vendor stacks, generic offshore developers, or DIY hiring. Everything below is drawn from real delivery — no fabricated case studies, no stock statistics, no promises about services we do not run.

Key benefits

Why buyers pick a single AWS mobile app development company

Six practical reasons EU and UK product teams choose EonTech over a two-vendor mobile-and-cloud stack.

  • Mobile app and backend in one team

    As an AWS mobile app development company, we field iOS and Android engineers alongside AWS cloud engineers. Your mobile app and its serverless backend are designed, built, and released by the same squad — no vendor seam.

  • Runs in your AWS account

    Every environment lives in your account under your billing and your keys. We do not host, we do not intermediate, and we do not sit between you and Amazon.

  • Nearshore EU delivery

    Poland-based teams with full-day CET overlap for the UK, EU, and Nordics, and half-day for US East Coast. Real reviews and pair sessions during your working day.

  • Cost-aware from day one

    Tagged spend, budget alerts, and right-sized services baked into the first landing zone — so a mobile app scaling from 1k to 1M users does not become a surprise invoice.

  • Security-first defaults

    Least-privilege IAM, encryption at rest and in transit, and Cognito or third-party identity wired properly. Your app store submissions include the security evidence procurement teams actually ask for.

  • You own everything

    Terraform or CDK, mobile source, Lambda code, and pipelines are yours from day one. No lock-in when the engagement rolls off; a new team can pick up the codebase without a decoder ring.

What we do

Across the AWS lifecycle — cloud, mobile, data, AI

From first landing zone to cost cleanup on a mature estate to a production mobile app, we cover what an AWS platform needs. Everything is code. No tribal memory required.

  • Architecture & landing zones

    We set up account structure, networking, and guardrails. Your AWS estate is secure from workload one.

  • Migration & modernisation

    Lift-and-shift where it makes sense. We re-platform where it pays. Every move has a rollback plan. No leaps of faith.

  • Serverless & containers

    Lambda, ECS, EKS, and managed data tools chosen to fit your load and team. Not the latest trend.

  • Mobile-backend engineering

    iOS and Android apps built on AWS Amplify, AppSync (GraphQL), Cognito (auth), Pinpoint (push/analytics), and Lambda — the core of what an AWS mobile app development company actually ships.

  • Cost optimisation

    Right-sizing, savings plans, and structural changes cut spend. Reliability stays intact. We show the numbers.

  • Security & compliance

    We apply least-privilege IAM, encryption, and logging. Controls map to GDPR and ISO 27001 rules you must meet.

  • Infrastructure as code

    Terraform or CDK keeps your setup repeatable and easy to review. No more click-ops drift.

  • Data & AI on AWS

    Bedrock, SageMaker, Kinesis, and OpenSearch wired into your product surfaces — including mobile — with observability and cost tuning as first-class concerns.

The AWS mobile stack

Six AWS services every AWS mobile app development company should reason about

AWS is a wide catalogue; only a subset earns its place on a mobile product. These are the ones we default to, and what each one is actually good at in a real iOS or Android app.

  • AWS Amplify

    Rapid mobile backend scaffolding with auth, storage, APIs, and analytics generated as code. Our default for greenfield iOS and Android products on AWS.

  • AppSync (GraphQL)

    Managed GraphQL API with realtime subscriptions and offline resolvers. The clean way to feed a mobile app from DynamoDB, RDS, or Lambda without hand-rolled REST.

  • Cognito & Identity

    User pools, federated identity, MFA, and social sign-in wired into the mobile app so login and RBAC are auditable end-to-end.

  • Pinpoint & SNS

    Push notifications, in-app messages, and campaign analytics for iOS and Android — with segmentation instead of blast-to-all noise.

  • Lambda & API Gateway

    Event-driven mobile backends that scale from a pilot to millions of users without you owning a server. Cold-start budgets and warm strategies planned per endpoint.

  • S3, CloudFront, DynamoDB

    Media, offline assets, and low-latency data for mobile clients — served through CloudFront and stored where the app actually reads and writes.

How we build the backend

Mobile backend patterns we ship on AWS

The unglamorous parts of an AWS mobile app — offline, push, auth, observability, store submissions, cost — are where most engagements actually live or die. Here is what we make sure is right on day one.

  • Offline-first from the start. Cache strategies, conflict resolution, and sync built into the data layer — not tacked on when the first bug report arrives from a customer on the underground.
  • Push, in-app, and email under one plan. Pinpoint and SES coordinated so a single user event drives the right channel — no duplicate notifications, no orphaned campaigns.
  • Auth that survives a security review. Cognito user pools or your existing IdP, MFA where it matters, and least-privilege IAM roles per Lambda — not a permissive wildcard everywhere.
  • Observability from device to cloud. CloudWatch, X-Ray, and mobile crash reporting stitched together, so you see the request path from the phone to DynamoDB and back.
  • Store submissions handled. TestFlight, Play Console internal testing, staged rollouts, and release-lane automation via CodePipeline or GitHub Actions. Your Apple and Google accounts stay yours.
  • Cost you can predict. Per-environment tagging, budget alerts, and a monthly cost report that ties spend back to features — so the mobile team knows what a new feature actually costs to run.

Cost & security together

Spend you can see, controls you can prove

Most AWS bills hide waste. It sits in untagged resources, oversized instances, and forgotten environments. We make spend visible per team and service. Then we cut it through right-sizing and better design. We never gamble with uptime.

Security runs on the same rules. We use least-privilege IAM and encryption. Audit logging maps to your GDPR and ISO 27001 rules. All expressed as code you can review.

See our DevOps consulting

How we judge a platform

Reviewed against the pillars that matter

We build and review AWS estates against the Well-Architected pillars. Decisions are planned. Trade-offs are clear.

  1. 01

    Operational excellence

    We write all setup as code. Deployments are automated. Workloads are visible and changes are safe.

  2. 02

    Security & reliability

    We use least-privilege IAM and encryption. Multi-AZ design spreads risk. Recovery is tested, not assumed.

  3. 03

    Performance efficiency

    Right service for the job. Serverless, containers, or managed data. Sized to your actual traffic, not guesswork.

  4. 04

    Cost optimisation

    Ongoing right-sizing and planning cut costs. We tag spend so you see where money goes.

  5. 05

    Sustainability

    The newest pillar, and a real one: we favour services and regions that reduce carbon footprint per request, and we surface the trade-off honestly.

Who we build for

Buyer shapes we ship AWS mobile apps for

Domain fluency shortens every architecture decision. These are the buyer shapes our senior engineers already know — no glossary week.

  • Consumer mobile apps

    iOS and Android apps that need auth, push, media, and scale — Amplify + Cognito + Pinpoint + S3 delivered as one working system, not four unrelated services.

  • B2B and internal apps

    Field-worker and enterprise mobile apps with SSO federation, VPC-private APIs, and offline sync for messy real-world connectivity.

  • SaaS scale-ups on AWS

    Multi-tenant platforms with a web front end, iOS/Android apps, and a shared backend on Lambda + AppSync. One AWS account structure, one team, one bill.

  • Regulated products

    Fintech, healthtech, and govtech mobile apps on AWS with GDPR-native delivery, audit trails, and evidence packs your CISO signs off.

  • AI-enabled mobile

    Bedrock, SageMaker, or your own custom model served behind an AppSync mutation — mobile clients hit one endpoint, latency and cost are governed centrally.

  • Legacy migrations to AWS

    Lift-and-shift when it fits; re-platform to serverless when it pays; both with tested rollback and no surprise weekend cutovers.

Trust & compliance

The signals procurement checks for

The paperwork is not the exciting part, but it is what separates a calm mobile launch from one held up by an audit finding. Our AWS delivery is built around the standards EU, UK, and US buyers actually enforce — and around Apple's and Google's own submission requirements.

As an EU-based AWS mobile app development company, we operate under GDPR by default, sign standard DPAs and SCCs, and hand over the evidence packs your CISO and app-store reviewers actually ask for.

Why EonTech

A cloud partner that keeps you in control

  • Senior only

    Our engineers have run AWS in production at scale. No junior bench learning on your dime.

  • Cost honesty

    We show the savings, the trade-offs, and what they cost in engineering time.

  • Your account

    Everything runs in your AWS account. You keep the code, the Terraform, and the keys.

  • EU-aligned

    Delivery meets GDPR and ISO 27001. We handle data residency with care.

Common questions

What teams ask an AWS mobile app development company

  • Can you reduce our AWS bill?

    Usually, yes. We start with right-sizing, cleanup, and planning. Then we look at structural changes. Moving workloads to serverless often helps. So does switching instance types. We show the numbers and trade-offs. No headline figures we can't back.

  • Do you do the migration, or just advise?

    Both. We can run a Well-Architected review and hand you a plan. Or we handle the full migration. That includes setup as code and a tested rollback path. The work runs in your account and stays yours.

  • Can you augment our existing platform team?

    Yes. We provide senior AWS and DevOps engineers. They work in your time zone and your process. Or we assign a dedicated team that owns a platform slice outright.

  • Are you an AWS mobile app development company, or only cloud consultants?

    Both. Around half of our AWS engagements ship a mobile app alongside the backend. As an AWS mobile app development company we field iOS engineers, Android engineers, and AWS cloud engineers in the same squad — using Amplify, AppSync, Cognito, Pinpoint, Lambda, and S3 as the default mobile stack.

  • Which AWS services does an AWS mobile app development company usually pick for iOS and Android?

    For most greenfield mobile products: Amplify to scaffold, AppSync for GraphQL, Cognito for identity and MFA, Pinpoint for push and campaign analytics, Lambda + API Gateway for custom logic, S3 for media, DynamoDB for low-latency data, and CloudFront for global delivery. Everything expressed as CDK or Terraform.

  • How do you handle native iOS and Android alongside AWS?

    Two paths. Fully native Swift/Kotlin apps calling AWS SDKs and AppSync directly — best when the app needs deep platform integration. Or a cross-platform stack (React Native, Flutter) with AWS Amplify libraries — best when a startup wants one codebase to reach both stores fast.

  • Do you cover push notifications, in-app messaging, and analytics?

    Yes. Pinpoint handles push, in-app messages, email, and segmentation; CloudWatch and QuickSight cover the analytics side. As an AWS mobile app development company we wire them so one user event flows through the right channel — no duplicate notifications, no dark data.

  • Can we build offline-first mobile apps on AWS?

    Yes. AppSync has managed offline resolvers with conflict detection; Amplify DataStore syncs a local cache to the cloud. We design the data layer around offline from day one, so field workers on a warehouse floor or a rural service call keep working through connectivity gaps.

  • How does AI/ML fit into an AWS mobile app?

    Bedrock and SageMaker sit behind an AppSync mutation or a Lambda endpoint; the mobile app calls a governed URL rather than talking to any model directly. That keeps API keys out of the client, lets you enforce rate limits and cost caps, and gives you a single audit trail for every AI response.

  • Who owns the AWS account, the code, and the mobile app store listings?

    You do — entirely. We work in your AWS account, your GitHub or GitLab, and your App Store Connect and Google Play accounts. IAM users for our engineers get provisioned and de-provisioned by your team on your cadence.

  • What contract shapes do you offer?

    Full-project outsourcing, dedicated pods (iOS + Android + AWS engineer + PM), or staff augmentation with senior engineers who plug into your team. Monthly rolling, no long lock-in, no captive-vendor arrangements.

  • Do you handle App Store and Google Play submissions?

    Yes. TestFlight, Play Console internal testing, staged rollouts, and release-lane automation through CodePipeline or GitHub Actions. We can run the whole release process or hand a documented one to your team; your Apple and Google accounts stay yours.

Related practices

Nearby capabilities at EonTech

Ship an AWS mobile app the way it should be shipped

Tell us about the app you want to build and the AWS account it will live in — a migration, a cost cleanup, a Well-Architected review, or a from-scratch mobile product. We will scope a first project you can measure.

Start your project DevOps consulting