How fast can you ship an MVP?

21 calendar days from kickoff to production deploy on the 21-Day MVP path. Custom Software builds run 6 to 26 weeks depending on scope.

How much does an MVP cost?

21-Day MVP from $5,000 USD. Custom Software Development from $11,000. AI Development from $7,000. Final quote depends on scope and integration count.

What stack do you use?

Default stack: Next.js, TypeScript, Node.js, Python, PostgreSQL, AWS, Stripe, Clerk, OpenAI, Anthropic Claude.

What services does Parallel Loop offer?

Three service lines: 21-Day MVP Development (from $5,000), Custom Software Development (from $11,000), and AI Development and AI Agents (from $7,000). Within these, 11 specialised service pillars including mobile app development, ecommerce, automation, CRM integration, cloud DevOps, and enterprise solutions.

How is the 21-Day MVP different from Custom Software?

The 21-Day MVP is productised with fixed scope, fixed price, and fixed 21-day timeline. It fits single-workflow products with off-the-shelf integrations. Custom Software is bespoke, sprint-based, and runs 6 to 26 weeks for products with multiple workflows, regulated scope, or enterprise integrations.

What stacks do you support?

Default stack: Next.js, TypeScript, Node.js, Python, PostgreSQL, AWS, Stripe, Clerk, OpenAI, Anthropic Claude. We can work in Java, .NET, Go, Ruby, PHP, Swift, Kotlin where the existing landscape requires it.

Do you offer AI development separately?

Yes. AI Development and AI Agents is a separate service line covering chatbots, generative AI, machine learning, computer vision, NLP, and AI consultation. From $7,000 for a chatbot MVP up to $35,000+ for a custom AI platform.

What is included in pricing?

Working software, full source code, CI/CD pipeline, staging plus production environments, runbook, monitoring setup, dual on-call cover for 2 weeks post-launch. We do not charge separately for architecture, design, or QA. They are part of every engagement.

Can you handle compliance and security?

Yes. We build HIPAA, PCI DSS, SOC 2 Type II, GDPR, ISO 27001, NERC CIP, IEC 62443 architecture where the build requires it. We do not issue audit certificates. We build the architecture and evidence collection that supports your audit firm.

Do you offer maintenance after launch?

Yes. Maintenance retainer from $2,200 per month. On-call cover, dependency upgrades, small features, security patching. SLA-backed. We do not require a retainer to do a build; we offer it as an option.

How fast can you start?

Typically 2 to 4 weeks from scoping call to kickoff. We do not double-book the team.

What is the average engagement length?

21-Day MVP: 21 calendar days. Custom Software: 6 to 26 weeks. AI Development: 4 to 20 weeks. Maintenance retainers run month to month.

How do I know which service line fits?

Book the free 45-minute scoping call. 30 minutes on your build, 15 minutes on which path fits. We tell you at the call if your build does not fit our service lines.

Is cross-platform really faster and cheaper than native?

Yes, when the use case fits. One codebase saves 30 to 50 percent of build cost and 50 percent of maintenance. The downside is the bridge has a performance ceiling and platform-specific features (Apple Pay, on-device ML) need native modules. We tell you which side wins for your app at scoping.

What about performance?

React Native with the new architecture (Fabric and TurboModules) and Hermes engine performs within 10 percent of native for most apps. Flutter compiles to native ARM code and performs effectively at native speed for UI-bound apps. We do not pitch hybrid for games, video editing, or AR-heavy apps.

Can you use Apple Pay and Google Pay?

Yes. Both via cross-platform packages (react-native-apple-pay, flutter_stripe) or via custom native modules where the package is missing features. PSD2 SCA where required.

Do you handle in-app purchases?

Yes. RevenueCat as a cross-platform abstraction for StoreKit 2 and Play Billing v6. Receipt validation server-side. Subscription state synced across platforms. Family sharing handled.

Over-the-air updates?

Yes. EAS Update for Expo-based React Native. CodePush for bare RN. Both allow JavaScript and asset updates to roll out without App Store or Play Store re-review. Native code changes still require a store release.

Can you migrate an existing native app to hybrid (or back)?

Yes. Native iOS plus native Android to React Native or Flutter is a common project. We also do hybrid back to native when the app outgrew cross-platform. Migrations typically take 60 to 70 percent of a greenfield build.

Wear OS, watchOS, and tablet?

watchOS and Wear OS need native companions (cross-platform does not support them well). Tablets and foldables are first-class in both React Native and Flutter with adaptive layouts.

Hybrid App Development

Hybrid App Development. One codebase. iOS and Android. Shipped fast.

Cross-platform mobile apps in React Native (Expo or bare workflow) and Flutter (Dart). One codebase that ships to App Store and Play Store simultaneously. Faster delivery, lower total cost of ownership, native-grade UI where it matters. Shipped in 8 to 14 weeks. USD pricing.

Book a Free Call →See how we work ↗

Tell us your app type, target platforms, and any platform-specific features. Scoped plan plus quote within 3 business days. No deposit to talk.

8–14WEEKS TO SHIP

$8K+CROSS-PLATFORM

RNOR FLUTTER

BothAPP STORES

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How we work

Overview: Three phases from project init to both stores live. We submit to App Store and Play Store on the same day where possible.
Step 1 — Scope and architecture: Two-week scoping. Screens mapped in Figma. React Native vs Flutter decision (we recommend based on your stack and team). Platform-specific feature audit (Apple Pay, Google Pay, deep links, push, in-app purchases).
Step 2 — Build in sprints: 6 to 10 weeks build. Two-week sprints. TypeScript-first for React Native. Dart for Flutter. Native modules for iOS and Android where the cross-platform layer cannot reach.
Step 3 — Harden and launch: 2 weeks hardening plus dual store submission. ATT, Play Data Safety, screenshots, demo accounts. Average submit to live: 5 to 10 days for both stores.

Recent mobile builds

Recent hybrid app builds shipped to both stores.

Care PlusAI home-care app (cross-platform)

React Native app for home-care professionals with offline-first scheduling, photo uploads, and AI-assisted documentation.

Read case study →

WowbeenSocial video review (React Native)

Consumer cross-platform MVP with native video upload, ranking, and social features built for iOS and Android stores.

Read case study →

MyPandaPlanTax planning (Flutter)

Consumer tax-planning Flutter app with calculation engine and onboarding flow shipped to both stores in 12 weeks.

Read case study →

Full library on the case studies page →

What we deliver. Hybrid Apps

React Native or Flutter codebase

React Native with Expo Router for fast start, or bare RN with TypeScript for full native flexibility. Flutter with Dart for one codebase to web plus mobile plus desktop where the use case fits.

Native modules where the bridge cannot reach

Custom native modules for Apple Pay, Google Pay, HealthKit, Bluetooth, AR, on-device ML when the cross-platform layer is missing or slow. Swift on iOS side, Kotlin on Android side.

Shared backend with auth and payments

Firebase, Supabase, AWS Amplify, or custom Node.js plus Python backend. Auth via Sign in with Apple, Google Sign-In, magic link. Subscriptions via RevenueCat or Stripe Mobile.

Push, deep links, and offline

Expo Push or Firebase Cloud Messaging for push. Universal Links plus App Links for deep linking. Offline-first state management via TanStack Query, Redux Persist, or Drift.

TestFlight, Play Console, and OTA updates

Beta automation via EAS Submit or Fastlane. Over-the-air JavaScript updates via EAS Update or CodePush so bug fixes ship without store re-review.

Dual store submission

App Store and Play Store submission on the same day where possible. ATT, Play Data Safety, screenshots in all required sizes, demo accounts. Review feedback handled.

Typical engagement ranges

Cross-platform MVP

From $8,000

React Native or Flutter for one codebase across iOS and Android.
App Store and Play Store submission included.
8 to 12 weeks.

Production hybrid app

From $14,000

Cross-platform with custom native modules for Apple Pay, Google Pay, or platform-specific features.
Native-grade payment or auth flows with cross-platform UI.
10 to 14 weeks.

Multi-app hybrid suite

From $35,000

Multiple apps from a shared codebase or monorepo.
B2C plus B2B variants, white-label, or per-region builds.
14 to 20 weeks.

Maintenance retainer

From $2,200 / mo

OTA updates, store policy changes, crash monitoring, release cadence.

Indicative USD ranges. Final quote depends on integration count, regulatory scope, and timeline. Exact scope and pricing locked on the scoping call.

FAQ

React Native wins when your team already does React or TypeScript. The ecosystem is bigger and you can share code with a Next.js web app. Flutter wins when you want pixel-perfect UI control across iOS and Android, or when you also want to target web and desktop. We pick based on your team and your roadmap.

Need hybrid apps?

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Hybrid App Development. One codebase. iOS and Android. Shipped fast.

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Who we've built for.

How we work

Recent mobile builds

What we deliver. Hybrid Apps

React Native or Flutter codebase

Native modules where the bridge cannot reach

Shared backend with auth and payments

Push, deep links, and offline

TestFlight, Play Console, and OTA updates

Dual store submission

Typical engagement ranges

Cross-platform MVP

Production hybrid app

Multi-app hybrid suite

Maintenance retainer

FAQ

Need hybrid apps?