Whizzystack

Mobile applications that perform
in the wild, not just in demos

We design, build, evolve mobile products for iOS, Android, and cross-platform stacks — from MVPs to enterprise apps that handle scale, offline usage, and complex workflows — with a clear focus on reliability, user journeys, and release cadence.

Whizzystack · Mobile product console
How we plug into your mobile product stack
📱
Experience
Product strategy & UX flows
Journey mapping, IA, and UX for consumer and enterprise apps — from onboarding and permissions to complex, multi-step workflows.
⚙️
Engineering
Build, integrate & ship
Native and cross-platform builds, APIs, and integrations — with CI/CD, environments, and QA geared for frequent, low-risk releases.
📈
Growth
Analytics, stability & growth
Crash and performance monitoring, funnels, cohorts, and experiments — so you can see what’s working and double-down on the right features.
Mobile app development

Mobile products that ship fast, scale cleanly, and plug into your stack.

We design, build, and run mobile apps for iOS, Android, and Flutter — tightly integrated with your APIs, data, and workflows, so you’re not just shipping an app, you’re shipping a channel that moves revenue and retention.

Product & growth leaders Founders & digital teams Ops & CX owners B2B, B2C, and marketplace apps
$41B+ IAP (Q2 2025) Non-game apps are now driving the majority of in-app purchase spend.
~3h 46m per day Average smartphone time worldwide — your users already live here.
~97% apps are free Winning apps rely on UX, engagement and retention — not paywalls alone.
1.6M+ iOS apps App Store and Play Store are both saturated — clarity and quality matter.
~218B downloads / year Global app downloads — but only a fraction become daily-use products.

Where mobile products usually get stuck.

Most teams don’t fail because of ideas. They fail because the app is slow to ship, hard to maintain, or badly wired into backend systems. We focus on the boring, hard parts — architecture, integration, and release discipline.

Problem 01

Prototype never becomes a production-grade app.

Figma screens and POCs exist, but infra, APIs, and edge-cases are missing. You don’t want yet another agency that does “just the front-end”.

Problem 02

Multiple vendors, no single owner.

Backend with one partner, mobile with another, analytics with a third — and nobody is accountable for end-to-end stability, performance, and KPIs.

Problem 03

Shipping is slow, every release is risky.

No release train, no environments, no automated tests. A simple feature takes weeks, and every App Store upload feels like a gamble.

What we actually build and run for you.

End-to-end mobile delivery: architecture, UX, APIs, integrations, analytics, and ongoing optimisation — not just a set of screens.

Core app

iOS, Android & Flutter builds

Native or Flutter-based apps, built on clean architecture patterns, ready to scale beyond the first release.

Experience

Product UX, onboarding & journeys

Onboarding flows, in-app education, and navigation patterns that reduce drop-offs and drive first-week activation.

Engagement

Push, in-app messaging & journeys

Behaviour-based push campaigns, deep links, and in-app prompts wired into your CRM, CDP, or marketing stack.

Integrations

Secure API & backend integration

REST/GraphQL integration with your existing systems, auth, and payments — including versioning and sandbox environments.

Data

Analytics, events & funnels

Event taxonomies, funnels, cohorts, and dashboards so product decisions are driven by data, not guesswork.

Run

Post-launch support & SRE basics

Crash monitoring, performance baselines, SLAs, and structured release trains, so shipping new versions becomes routine.

Our scope of mobile application development services

End-to-end ownership—from discovery to stores and beyond—with product, engineering, testing, and growth support aligned to real-world usage.

Product discovery & planning

Workshops, scope definition, and measurable goals to de-risk delivery and align stakeholders.

User journeys Wireframes Roadmap

UX & UI design

Design systems and motion that feel native on iOS and Android, tested with real users.

Design system Prototypes Accessibility

iOS app development

Swift/SwiftUI with clean architectures, StoreKit flows, and push notifications.

Swift SwiftUI Combine

Android app development

Kotlin & Jetpack Compose for reliable performance and Play Store readiness.

Kotlin Compose Material 3

Cross-platform apps

Flutter or React Native when speed to market and shared code make sense.

Flutter React Native Expo

Backend & integrations

Secure APIs, payments, and third-party services built for scale and observability.

Node.js Stripe Firebase

Realtime features

Chat, presence, and push with durable queues and graceful fallbacks.

WebSockets FCM/APNs Kafka

QA, automation & security

Test plans, device labs, and secure pipelines to keep quality predictable.

Playwright Appium OWASP

Release, ASO & support

Store listings, crash/error tracking, and iteration plans for steady growth.

App Store Play Console Sentry

The kind of outcomes we optimise around.

The build is just the starting line. We design, scope, and measure the work around business metrics that matter — not just “screens delivered”.

+30–80%
Lift in activation & week-1 retention

Better onboarding, fewer steps, clear value communication, and instrumentation to see exactly where users drop.

2–3× faster
Time-to-ship new features

Release trains, CI/CD, shared design systems, and Flutter where it makes sense, so you can iterate without chaos.

↑ NPS & CSAT
Better app experience for your customers

Faster load, fewer crashes, intuitive UX, and a feedback loop that flows back into your product backlog.

Mobile app case studies

Book a call

Real outcomes from marketplace, social travel, and co-travel apps—designed, built, and shipped to the App Store and Play Store.

Voicey – influencer/brand marketplace
iOS • Marketplace

Voicey — connect creators & brands

Influencer marketplace with pixel-perfect UI, realtime chat, and deep Instagram integration.

Creator economy · Realtime messaging See full story
Trava – social trip planning
iOS / Android • Social travel

Trava — social trip planning

Discovery-to-deployment: collaborative itineraries, social feeds, and a scalable data model.

Cross-platform · Social graph See full story
Skydreamer – co-travel matching
iOS / Android • Co-travel

Skydreamer — co-travel matching

From firefighting issues to a ground-up rebuild: smoother onboarding, swipes, chat, and store readiness.

Consumer · Onboarding & engagement See full story

Planning a mobile app in the next 3–6 months?

We’ll walk through your current idea, constraints, and tech landscape, and map out a realistic 8–12 week pilot plan — including architecture, team shape, and budget ranges.

How we work with you end-to-end.

One integrated team across product, design, engineering, and QA — with clear checkpoints, so you always know what’s shipping when.

From first workshop to live app and beyond.

We plug into your organisation as a product-first partner: clarifying use-cases, sequencing the roadmap, and then building in predictable cycles with clear demos, release notes, and KPIs.

  • Engagement models: fixed-scope pilots, dedicated pods, or ongoing retainers.
  • Tech: Flutter, Kotlin/Swift where needed, modern API stack, and standard analytics tooling.
  • Teams: small senior pods with product + design + engineering + QA, not fragmented outsourcing.
01
Discovery & product framing

Align on business goals, users, and core journeys. Audit current systems and APIs. Define what “success at launch” actually looks like.

02
Design sprint & architecture

Map information architecture, app navigation, and technical architecture. Finalise tech choices and delivery plan with timelines.

03
Build, integrate & instrument

Ship in short sprints with working builds, API integrations, analytics, and crash monitoring wired in as we go.

04
Launch, learn & optimise

App Store / Play Store release, user rollout plan, then a tight loop of experiments, UX improvements, and performance tuning.

Mobile app FAQs

  • How long does it take to launch the first version?

    Most pilots land in 8–12 weeks from kick-off, depending on complexity and how ready your APIs are. During scoping, we’ll share a clear plan with milestones, environments, and dependencies.

  • Do you only work with Flutter, or also native?

    We use Flutter where it makes sense for speed and shared code, and go native (Swift/Kotlin) when platform-specific depth or performance demands it. The tech choice follows the product and constraints, not the other way around.

  • Can you integrate with our existing backend and auth?

    Yes. A lot of our work is for teams that already have ERPs, CRMs, custom APIs, or microservices. We’ll map your systems, define contracts, and create sandboxes so mobile can ship without breaking what’s already working.

  • What does a typical engagement cost?

    It varies with scope, but pilots usually start from a well-defined fixed scope and then move into a pod / retainer model. In the first call, we’ll give you an honest range and options that match your budget and risk appetite.

Tell us about your needs

We’ll get back to you within 24 hours

WHIZZYSTACK HQ 

All queries

Whizzystack Solutions
B-61, Sector 67, Noida, Delhi-NCR 201301 

Phone:  +91 95 6064 1297  |  0(120) 428 7309
E-mail : info@whizzystack.co
Web:  www.whizzystack.co

All queries

Whizzytack Solutions
B-61, Sector 67,   Noida, Delhi-NCR 201301 

Phone:  +91 95 6064 1297  |  0(120) 428 7309
E-mail : info@whizzystack.co
Web:  www.whizzystack.co

All queries

Whizzytack Solutions
111, Pemberton BLVD, Brown Mills, NJ 08015 US

Phone:  +91 95 6064 1297  |  0(120) 428 7309
E-mail : info@whizzystack.co
Web:  www.whizzystack.co

All queries


E-mail:
  info@whizzystack.co 
Web:  www.whizzystack.co

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