Skip to main content

iOS · Android · APIs

Mobile App Development

iOS and Android strategy, APIs, and cross-platform builds when your roadmap needs a pocket product.

  • Mobile as a product surface, not a marketing checkbox.
  • API and offline requirements before framework choice.
  • React Native or Flutter when two platforms justify cost.
  • Native when OS-specific features dominate the roadmap.
  • One backend team shipping the mobile API alongside clients.
40+ projects since 2022 IST · daily sync NDA-ready
View featured case study
Founder-led team · Surat, India · English-first delivery
WHAT WE OFFER

What we deliver for mobile app development

Core deliverables

  • Mobile API design
  • React Native / Flutter apps
  • App store release support
  • Push & offline patterns
  • Backend paired delivery

Why teams choose this engagement

  • Product discovery and written v1 scope
  • Architecture and data model for long-term ownership
  • Weekly staging demos with accountable engineers
  • Production deploy, handover docs, optional retainer
CHALLENGES

Problems we solve in mobile app development

  • Mobile UI ships before the API exists

    App store deadlines pressure teams to mock endpoints that change weekly. We deliver OpenAPI contracts and staging sandboxes before TestFlight.

  • Offline and push are deferred forever

    Field apps fail when sync and notification paths are sprint-four surprises. We map offline, push, and auth refresh in discovery.

  • App store rejection loops

    Privacy labels, login flows, and payment rules need review before submission. We checklist store requirements alongside feature work.

  • Backend team speaks a different language

    Mobile engineers need stable pagination, error shapes, and token refresh documented in OpenAPI, not Slack screenshots.

OUR APPROACH

How we build mobile app development

Founder-led engineers in Surat (IST) with morning and end-of-day updates so distributed product owners stay in the loop.

We treat mobile as a product surface, not a checkbox. Today we help teams plan iOS/Android strategy, API readiness, and React Native or Flutter builds when the roadmap justifies native shells.

Hub note: we start with your API and offline requirements before picking a framework, that saves months of rework.

Products that need a field or consumer app alongside a web platform.

MOBILE API

Backend your app can trust

We pair mobile delivery with Django or FastAPI APIs designed for flaky networks and token refresh. Contract tests run before partners or app store reviewers touch staging.

  • OpenAPI-first endpoints with pagination and error codes
  • Staging sandboxes for iOS and Android builds
  • Auth refresh and session revocation tested on critical paths
RELEASE

Store-ready without fire drills

React Native or Flutter when cross-platform fits; native paths when performance or store policy demands it. Release checklists cover privacy, payments, and crash reporting before production traffic.

  • TestFlight and Play Console staging cadence in sprint plan
  • Push notification and deep-link flows verified on staging
  • Mutual NDA before app credentials or repository access
INDUSTRIES

Where we apply mobile app development

Vertical experience from shipped products, not generic claims.

WHY US

Why teams choose us for mobile app development

Six reasons founders and product leads pick us over a generalist shop - scoped to how we deliver this engagement.

  • API readiness first

    Pagination, auth, and sync contracts before UI polish.

  • Store release support

    Listing assets and release trains when scoped.

  • Cross-platform honesty

    We advise native when RN/Flutter will fight your UX.

  • Companion to web

    Shared backend with your existing Django or FastAPI product.

  • Long-term maintainability

    We optimize for the engineer who inherits the codebase in three years.

  • Transparent billing

    Fixed phases or monthly retainers, no surprise hours on the invoice.

HONEST FIT

Is this for you?

Good fit

  • Your web product needs a companion app for field or consumer use.
  • You have budget for two platforms and maintenance after launch.
  • You want one backend team that also ships the mobile API.
  • You want the mobile API designed before UI screens multiply.
  • You have budget for store releases and post-launch maintenance.
  • Offline, auth, and sync requirements are discussed in discovery.

Probably not

  • You need a game or heavy AR experience.
  • You want mobile without any backend engineering partner.
  • You need a game or AR experience outside our core stack.
  • You want mobile without any backend engineering partner.
  • You expect both platforms plus web for a single-week MVP.
HOW WE WORK

Delivery process for mobile app development

How we plan and ship mobile apps with the API they depend on.

We map goals, constraints, integrations, and non-goals in writing - not a slide deck. Mutual NDA before sensitive details; if we are not the right fit, we say so before sprint one.

  1. Requirements

    We map goals, constraints, integrations, and non-goals in writing - not a slide deck. Mutual NDA before sensitive details; if we are not the right fit, we say so before sprint one.

  2. API and prototype

    Written v1 boundaries, data model sketch, stack choices, and integration list agreed upfront. You get milestone owners, staging plan, and definition of done before the first sprint ends.

  3. Build clients

    Repository access, CI pipeline, and a demo environment your stakeholders can click through early. Auth, billing, and partner integrations mapped before feature work spreads across the backlog.

  4. Store launch

    Weekly staging demos, tests on auth and payment paths, and direct engineer access on Slack. Scope changes are fine - surprise scope without trade-off talk is not.

TECHNOLOGIES

Stack for mobile app development

Tools and runtimes we use on this type of engagement - chosen for production delivery, not slide-deck logos.

  • React
  • FastAPI
  • PostgreSQL
  • AWS
WORKFLOW

How we work on mobile app development

  • Slack or Teams

    Direct channel with engineers, responses within one business day.

  • GitHub / GitLab

    PR reviews, CI status, and shared backlog visibility.

  • Weekly demos

    Staging walkthroughs on a cadence agreed at kickoff.

  • Linear / Jira

    Sprint board agreed with your product owner.

DEPLOYMENT

Production discipline for mobile app development

  1. CI/CD gates

    Automated tests before merge and promote to staging. pytest on auth and billing paths; lint and type checks on every PR.

  2. Staging parity

    Environment layout, secrets, and queue topology mirror production before go-live. Integration tests run against staging data that resembles real usage.

  3. Rollback plan

    Documented revert steps and database rollback scripts - not improvised during an incident. Your on-call can follow the runbook without calling us first.

  4. Post-launch monitoring

    Alerts, logs, and error budgets discussed before traffic hits production. We wire dashboards your team can read after handover.

OUTCOMES

Track record from mobile app development

Metrics from shipped products and active engagements - not slide-deck claims.

40+
Projects since 2022
US · UK · EU
Client regions
IST
Morning & EOD sync
NDA
Before code access
CASE STUDIES

Proof from mobile app development

Real products we shipped for founders in the US, UK, and Europe.

Before we scope your build, founders ask whether we have shipped products like theirs - with real auth, billing, and a team still maintaining the codebase.

  • Previous vendor left messy code

    You need proof we ship maintainable products founders still run in year three.

  • Can't show investors real software

    These are live products with staging URLs - not mockups or slide decks.

  • Unsure we handle B2B complexity

    Multi-role platforms, admin tools, and partner integrations are documented below.

AstroSure.ai - SparkScribe Technologies case study AI & ML · SaaS
Consumer AI 8 months

AstroSure.ai

AI-powered astrology platform with personalized daily guidance

What they needed: The founders had a notebook demo but needed a production LLM pipeline with cost controls, human review, and staging parity before investor diligence.

Our approach: Before build, SparkScribe worked with AstroSure to translate their SaaS Product goals into an actionable plan — not an off-the-shelf template.Discovery & planningWorkshopped birth-chart, daily reading, panchang, kundli matching, and Agastya chat flows against latency …

An astrology platform powered by LLMs - personalized horoscope readings, panchang insights, and conversational guidance through a branded AI assistant.

  • 3× faster reading generation
  • 99.2% API uptime in production
  • Python
  • Django
  • OpenAI
  • PostgreSQL
  • Redis
  • React
  • AWS
View case study
Explore all case studies
Hire us

Engagement models for mobile app development

Mobile apps with API co-delivery, fixed milestones, or squad extension for iOS and Android.

  • Fixed-scope project

    Discovery, written requirements, and milestone billing. Best for MVPs, redesigns, and integrations with a defined end state.

    • Duration: Phased milestones
    • Working: Sprint plan agreed upfront
    • Billing: Per milestone or phase
    • Timeline: Based on signed scope

  • Dedicated squad

    A focused engineering squad on your product: weekly demos, shared backlog, and one accountable team when scope evolves.

    • Duration: 8 hrs/day · 5 days/week
    • Working: ~160 hrs/month capacity
    • Billing: Monthly invoice
    • Timeline: Sprint-based delivery

  • Part-time retainer

    Smaller monthly hour buckets for fixes, dependency updates, and enhancements, with the same engineers when possible.

    • Duration: 4 hrs/day · 5 days/week
    • Working: ~80 hrs/month
    • Billing: Monthly retainer
    • Timeline: Ongoing support window
Mutual NDA before codebase access Morning & EOD IST sync Written scope before sprint one
FAQ

Questions about mobile app development

What prospects ask on a first call about this service: scope, timelines, fit, and how we work.

  • Scope & pricing
  • Delivery process
  • Handover & IP
  • NDA & quality gates
  • Written scope before sprint one milestones, owners, and what stays out of v1 are documented before build starts.
  • Weekly staging demos with the engineers writing your features, not a status deck relay.
  • Your IP in the contract code, designs, and docs transfer to you on agreed milestones.
  • Mutual NDA upfront before you share product details, credentials, or repository access.

5 questions

Do you build native iOS/Android or cross-platform?

We recommend based on UX needs, team skills, and store policies. Backend APIs are planned in the same room as mobile.

How do you handle mobile app store submission?

We prepare assets, privacy labels, and build pipelines; submission can be us or your account with our checklist.

Can mobile share APIs with our existing web product?

Yes. One API contract with versioning so web and mobile release on independent cadences when needed.

What mobile deliverables do we own?

Source repos, CI build configs, store listing drafts, and API docs for the endpoints the app uses.

How do you test mobile before release?

Device matrix on critical flows, staging API parity, and crash reporting wired before TestFlight or beta.

GET STARTED

Need a mobile app? Let's scope it.

Tell us about iOS/Android targets, offline needs, and your API status. We advise native vs cross-platform honestly and align mobile sprints with backend delivery.

  • React Native, Flutter, or native when justified.
  • API contracts agreed before UI polish.