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Custom Development
Custom Data ModelsMulti-Tenant AuthComplex Workflows

Custom Web Application Development

You've Outgrown Templates. Build What's Next.

95+
Lighthouse Score
Every build, every time
0
Vendor Lock-In
You own your code
60%
Faster Iteration
vs. fighting platform limits
100%
Custom Logic
No plugin workarounds
What Is Custom Web Application Development?

Custom web application development means designing, building, and deploying software around your exact business logic — not bending your operations to fit a template or no-code platform's limitations. That means production-grade code with custom data models, role-based access control, third-party integrations, and workflows that actually reflect how your business runs.

プロジェクトが失敗する理由

Your Webflow or Bubble app hits a wall every time you need custom logic You burn weeks on workarounds that break on the next platform update.
No-code platforms own your data and dictate your architecture By the time you've outgrown the platform, migration is basically a full rebuild from scratch.
Template sites can't handle multi-tenant access or role-based permissions You either expose sensitive data or end up managing access in a spreadsheet.
Squarespace AI and drag-and-drop builders spit out the same sites Honestly, your brand ends up looking identical to thousands of other businesses that grabbed the same template last month.
Plugin stacking creates fragile dependencies and kills performance Page load times creep past 5 seconds, and your conversion rates follow them down.
Complex workflows get duct-taped together with Zapier, Airtable, and a handful of other SaaS tools Data slips through the cracks and your team loses hours every week to manual reconciliation.

コンプライアンス

Custom Data Modeling

We design PostgreSQL schemas that reflect your actual business entities and relationships. No forcing your data into someone else's generic structure.

Multi-Tenant Architecture

Row-level security, organization-scoped data, and tenant isolation are built into the foundation from day one. It scales from 5 customers to 5,000 without a rewrite.

Role-Based Access Control

Granular permissions that match your org chart — admin, manager, member, client. Every route, every API endpoint, every database query gets scoped accordingly.

Third-Party Integrations

Direct API integrations with your CRM, payment processor, ERP, or any system that exposes an API. No Zapier tax, no webhook prayer chains.

Performance Engineering

Server-side rendering, edge caching, and optimized database queries keep load times under a second. Lighthouse scores stay above 95 on every page.

Full Code Ownership

You own every line of code. Deploy on Vercel, AWS, or your own infrastructure — no proprietary runtime, no vendor lock-in, no export restrictions.

構築する内容

Server Components & Streaming

Next.js App Router with React Server Components for fast initial loads and progressive data streaming.

Real-Time Collaboration

Supabase Realtime subscriptions for live dashboards, notifications, and multi-user editing — no polling required.

Automated Workflow Engine

Custom state machines and background jobs replace your Zapier chains with code that's actually reliable and testable.

Stripe Billing Integration

Subscription management, usage-based billing, invoicing, and webhook handling built directly into your application.

Admin Dashboard

Purpose-built internal tools for your team — user management, analytics, content moderation, and operational controls.

CI/CD & Preview Deploys

Every pull request gets a preview URL. Automated testing, type checking, and deployment run on merge to main.

私たちのプロセス

01

Architecture & Data Modeling

We map your business logic, define your data schema, and spec every user flow. You get a technical blueprint before we write a single line of code.
Week 1-2
02

Foundation Build

Auth, database, API routes, and core UI components ship first. You'll have a working login and basic CRUD within the first sprint.
Week 3-4
03

Feature Development

We build your custom workflows, integrations, and business logic in weekly sprints. You review working software every Friday.
Week 5-8
04

Testing & Performance

End-to-end tests, load testing, a security audit, and Lighthouse optimization. We break things in staging so they don't break in production.
Week 9-10
05

Launch & Handoff

Production deployment, DNS cutover, monitoring setup, and documentation. Every build includes 30 days of post-launch support.
Week 11-12
Next.jsReactSupabasePostgreSQLVercelTailwind CSSPrismaStripeAuth.js

よくある質問

ノーコードからカスタム開発に切り替えるべき時期はいつですか?

プラットフォームの制限を回避することに、機能構築以上の時間を費やすようになった時です。典型的なきっかけ:カスタム権限、複雑なデータ関係、プラットフォームが対応していない統合、またはプラグイン積み重ねによるパフォーマンス問題。Zapierの請求がデベロッパーの時給に近づいてきたら、切り替えどきです。

カスタムWebアプリケーション開発にはいくらかかりますか?

カスタムWebアプリは、フォーカスした内部ツールは$14,000から始まり、マルチテナントSaaSプラットフォームの場合は$50,000以上になります。価格はデータモデルの複雑さ、統合の数、ユーザーロール要件によって異なります。固定料金見積もりを提供しており、時間単位での思わぬ費用はありません。

BubbleやWebflowからカスタムアプリにデータを移行できますか?

できます。どちらのプラットフォームもデータエクスポートに対応しており、既存データを適切に正規化されたPostgreSQLスキーマにマップする移行スクリプトを作成します。通常、移行中は並行環境を運用するため、ユーザーに影響を与えません。

カスタムWebアプリケーションの構築にはどのくらい時間がかかりますか?

ほとんどのプロジェクトは8~12週間で本番稼動します。フォーカスした内部ツールは6週間で稼動可能です。複雑な請求と権限を備えたマルチテナントSaaSは通常12~16週間かかります。毎週機能を本番稼動するため、数ヶ月も大きな発表を待つことはありません。

プロジェクト完了後、コードの所有権は得られますか?

完全に得られます。Gitリポジトリ、すべてのインフラストラクチャ認証情報、デプロイメント構成に完全なアクセス権を得ます。プロプライエタリランタイムやライセンスはありません。別のチームを導入したり、プロジェクトをフォークしたり、どこにでもデプロイできます。これは完全にあなた知的財産です。

ローンチ後はどうなりますか?継続サポートは提供していますか?

すべてのプロジェクトに、バグ修正と軽微な調整のための30日間のローンチ後サポートが含まれます。その後、継続的な機能開発、パフォーマンス監視、インフラストラクチャ管理をカバーする月間リテーナープランを提供しています。ほとんどのクライアントは新機能のリリースが速いため、その後も継続します。

Custom Web Apps from $14,000
Fixed-fee. 30-day post-launch support included.
See all packages →
Next.js DevelopmentCore Web Vitals OptimizationMigrate from WordPress to Next.js

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