Build

Mobile app engineering

Your app keeps missing deadlines. We fix that.

Book a strategy callSee relevant work
30+

Apps shipped

4.7/5

Avg store rating

12

Weeks to launch

Trusted by teams at

VodafoneNikeGeneral ElectricMicrosoftT-MobileBank of America

The Problem

What problem does this service solve?

Most mobile projects miss timeline targets because quality, release pipelines, and backend constraints get planned too late. By launch week, the team is patching bugs instead of shipping features.

A delayed mobile launch isn't just a schedule slip. It's users forming habits with a competitor's app instead of yours - and those habits don't break when you finally ship.

BuildHIPAA-compliant telehealth platform
15,000+

Monthly visits

97.3%

Call completion

Read case study

Overview

What is Mobile app engineering?

The hard part of mobile isn't writing the code. It's shipping reliably across two platforms while keeping store ratings high and users coming back on day seven, not just day one.

Mobile delivery fails when teams treat release quality as a late-stage activity. We build quality and performance checks into the process from day one, because you can't bolt them on at the end.

We focus on product-critical workflows first, then expand feature depth with a strong release cadence. Store ratings stay high because the first release isn't a scramble.

You get a maintainable mobile foundation and a roadmap path that supports long-term growth, not a codebase that needs a rewrite the first time iOS changes.

Experience Signal

Shipped 30+ consumer and enterprise mobile apps across healthcare, fintech, retail, and hospitality with a 4.7/5 average store rating. 12 weeks is our default, not our stretch goal.

What we build

Mobile app engineering services we deliver

Cross-platform builds with React Native

Shared codebase iOS and Android builds with native module integration, deep platform feature access, and strict performance budgets.

Native iOS with Swift

Swift and SwiftUI builds for apps that need deep platform integration, top-tier performance, or App Store-specific features.

Native Android with Kotlin

Kotlin and Jetpack Compose builds for Android-first or Android-heavy products where native is the right call.

Mobile companion apps

Mobile extensions of existing SaaS products with secure APIs, offline-safe workflows, and feature parity on the paths that matter most.

Offline-first architecture

Sync layers, conflict resolution, and background workers for apps that have to work when connectivity doesn't.

Store launch and release ops

App Store and Play Store submission, release pipelines, phased rollouts, and hotfix workflows that turn store launches into a routine.

Legacy app rebuilds

Incremental modernization of aging apps without blowing up feature delivery or losing the installed user base.

Post-launch retention and scale

Retention tuning, crash-free session optimization, and feature iteration against real store ratings and user analytics.

Fit

Is this service right for you?

Good fit

  • Founders who keep pushing the mobile launch back because the last agency burned them
  • SaaS companies whose users keep asking for a mobile app while the web team doesn't do native
  • Teams whose launched app sits at a 3.2 store rating and churns users before day seven
  • Orgs with a legacy app that barely runs on current OS versions and breaks on every update
  • Enterprises rolling out a field-team or employee app with real offline and reliability needs

Not the right fit

  • Projects with no clear mobile product owner
  • Apps without defined release and post-launch support ownership
  • Teams looking for design-only deliverables

Process

How does Mobile app engineering delivery work?

1
Phase 1· Week 1-2

Product and technical planning

We define mobile scope, architecture constraints, and release criteria against business goals. Native-vs-cross-platform gets decided here, not in week 8.

Deliverables

  • MVP scope and user flow priorities
  • Platform strategy and architecture plan
  • Release readiness checklist
2
Phase 2· Week 2-4

Foundation and integration setup

We stand up app structure, state management, API contracts, and instrumentation before feature work expands. Crash tracking and analytics land day one.

Deliverables

  • Mobile codebase foundation
  • Backend integration contracts
  • Crash and performance tracking setup
3
Phase 3· Week 4-10

Feature build and quality iteration

We deliver core user flows with testing, performance tuning, and release-candidate hardening every week. No end-of-project bug panic.

Deliverables

  • Core workflow implementation
  • QA coverage for critical paths
  • Performance and stability improvements
4
Phase 4· Week 10-12

Store launch and scale plan

We complete store submissions, run launch operations, and hand over the next-iteration roadmap with analytics wired in.

Deliverables

  • App Store and Play Store submissions
  • Launch analytics and monitoring dashboard
  • Post-launch feature backlog

Outcomes

  • A reliable launch with measurable app quality standards
  • Faster iteration through clear release and QA workflows
  • Strong mobile UX aligned to real user behavior
  • A store rating that holds up past the honeymoon period

Deliverables

  • Mobile architecture and release plan
  • Feature implementation for iOS and Android
  • Crash and performance monitoring setup
  • App Store and Play Store launch support
  • Post-launch optimization and growth roadmap
  • Engineering standards and handover documentation

Success Metrics

  • Crash-free sessions rate
  • App startup and screen load performance
  • Activation and retention on core flows
  • Release frequency and hotfix volume
  • App Store and Play Store rating trend

Engagement models

12-week delivery for a production mobile app from scoping through store launch on both platforms.

Best forTeams launching a new mobile product on an urgent timeline.

Core technology stack

React Native
Swift
Kotlin
TypeScript
Firebase
Supabase
GraphQL
F
Fastlane

Use Cases

Common use cases for Mobile app engineering

Mobile companion for an existing SaaS

Users need key workflows on mobile but the current experience is browser-dependent and clunky on a phone.

How we build it

We build mobile-first task flows with secure APIs, offline-safe handling, and analytics that show where users actually get stuck.

Outcome

Higher engagement from users who operate away from desktop. Support tickets on mobile workflows drop after launch.

Consumer MVP launch

A founder needs to validate product demand in the app stores on a tight timeline and a tight budget.

How we build it

We scope a focused MVP, ship fast, and wire up analytics that guide the first retention cycles without data overload.

Outcome

Faster launch with a clearer path for product iteration decisions - and a real store rating to defend.

Legacy app rebuild

An existing app is hard to maintain, breaks on every OS update, and blocks every new feature the team wants to ship.

How we build it

We modernize architecture and migrate high-impact modules incrementally while keeping the live app stable.

Outcome

Release velocity climbs. Long-term maintainability stops being the bottleneck.

What clients say

Real feedback from real teams

I spent years at Amazon fighting static surveys. RaftLabs built a working prototype in four days that already outperformed every survey tool I'd used. Twelve weeks later we had a full SaaS that product teams actually want to use.

Founder

Ex-Amazon PM - Perceptional

We went from text surveys that nobody finished to AI phone interviews that people actually enjoy. The voice agents handle the whole conversation, and the analytics tell us what we need to know without reading a single transcript.

Cherian Koshy

Behavioral Strategist - USA Today Bestselling Author

Proof

Recent mobile app engineering work

BuildHIPAA-compliant telehealth mobile platform
15,000+

Monthly visits

97.3%

Call completion

“A telehealth app clinicians actually want to use.”

Read case study
BuildMobile-ready SaaS for Perceptional
4 days

Prototype

12 weeks

Full SaaS

“Working prototype in four days. Full SaaS in twelve weeks.”

Read case study

Industries

Mobile app engineering for your industry

Healthcare

Telehealth, patient portals, and clinician apps with HIPAA-conscious mobile architecture.

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Fintech

Banking, payments, and wallet apps with the security and reliability finance demands.

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Retail

Commerce, loyalty, and store-associate apps with deep POS and inventory integration.

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Hospitality

Guest and property apps with booking, in-stay, and loyalty flows for multi-location operators.

Explore

MarTech

Consumer and B2B mobile products where engagement and retention decide the outcome.

Explore

EdTech

Learning apps with offline content, progress tracking, and engagement analytics at cohort scale.

Explore

Frequently asked questions about Mobile app engineering

Both. We pick based on product constraints, performance targets, and your team's long-term ownership. The decision lands during technical planning in week one, not at the end.

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Next Step

Have a mobile product stuck in limbo?

Tell us where you are today. We'll show you a realistic path to a store-ready launch that doesn't collapse on the day you ship.

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