Do you handle App Store and Play Store submission?

Yes — listings, screenshots, privacy nutrition labels, review responses and phased rollouts are part of our deployment stage.

Can the app work without a connection?

We design offline-first where it matters: local storage with background sync, conflict resolution rules and clear UI states for pending changes.

Who owns the source code and IP?

You do. All source code, designs and documentation are assigned to you on payment of each milestone, and the repository lives in your organisation from day one.

How long does delivery take, and what does it cost?

Every scoped release is planned for delivery within 1–4 weeks, and larger scopes are planned to fit that window rather than stretching the schedule. A fixed quotation follows a free 30-minute scoping call.

Can we negotiate pricing for a long-term engagement?

Yes. Commitments of 3–5 months earn 5% off, 6–11 months 10% off, and 12 months or more 15% off with a 12-month rate lock and a dedicated delivery lead. Invoices are monthly in advance, scaling down or exiting needs 30 days’ written notice, and discounts are recalculated if a commitment is shortened. Everything is negotiable before signing.

How do you handle security and confidentiality?

Every engagement starts with a mutual NDA. Engineers work on managed devices with SSO and MFA, secrets never leave your vault, and production access is granted per person with audit logging.

Avg. support response 9.8h Verified authors · Razorpay secured

contact@dev3.tech +91 98776 58521

DEV3Technologies

Native & cross-platform apps

Mobile App Development

React Native, Flutter and native iOS/Android apps with offline sync, push, payments and store-ready release pipelines.

React Native & Flutter cross-platform
Native Swift / Kotlin modules
Offline-first sync & push notifications
CI/CD to App Store & Play Store

Delivery window

1–4 weeks per scoped release

Team

Senior, in-house squad

Ownership

Code & IP assigned to you

React NativeExpoFlutterSwiftKotlinFirebaseGraphQL

Value proposition

Why teams choose DEV3 for Mobile App Development

We build native and cross-platform apps that feel at home on every device: offline-first data, reliable push, secure payments and release pipelines that ship to the App Store and Play Store on a predictable cadence.

We choose React Native, Flutter or fully native Swift/Kotlin based on your performance needs, existing team and long-term roadmap — and tell you why.

Engagement frameworks

Three ways to work with us

Full comparison →

Fixed Price

A defined scope, timeline and price agreed upfront, with milestone-based payments and change requests handled through a transparent impact assessment.

From $4,000 per project

Dedicated Team

A cross-functional squad that works exclusively on your product, follows your rituals and scales up or down with one month’s notice.

From $1,600 per engineer-month

Time & Materials

Pay for the hours worked against an evolving backlog, with weekly timesheets, sprint reviews and a budget cap you control.

From $10 per hour

Long-term partnerships — negotiable

Committing to a longer engagement lowers your rate. Every term below is a starting point we negotiate with you, in writing, before work begins.

Discuss long-term pricing

Commitment	Discount	Also included
3–5 month commitment	5% off	Applied to every monthly invoice in the committed period
6–11 month commitment	10% off	Quarterly roadmap reviews with your delivery lead
12+ month commitment	15% off	Rate locked for 12 months and a dedicated delivery lead

Conditions

Monthly invoicing, billed in advance
A minimum commitment term is agreed in the order form
30 days’ written notice to scale down or exit
Discounts apply to the committed period only and are recalculated if the commitment is shortened
Milestone acceptance within 5 business days of delivery
IP transfers to you on full payment
Price revisions only at renewal

Architecture roadmap

How the engagement runs, stage by stage

Discovery → UI/UX prototyping → systems architecture → engineering → QA → deployment. Select a stage for its deliverables.

Stage 1 of 6

Discovery & scoping

Stakeholder workshops, success metrics, constraints and a prioritised backlog with acceptance criteria.

Typical duration: 3–5 days

Deliverables

Platform & device matrix
Feature prioritisation
App store compliance review

Case studies

Related engagements

All case studies →

MediTrack Health · Healthcare · United States

An offline-first, HIPAA-grade mobile app for field nurses

React Native app with encrypted local storage, background sync and conflict resolution so home-care nurses can chart visits with or without signal.

Documentation lag

48 h0.25 h

Charting errors / 100 visits

React Native Node.js PostgreSQL AWS HIPAA

FAQ