Tsukuba Tech
Mobile app developmentアプリ開発

iOS and Android apps, connected to the rest of your business.

Tsukuba Tech designs, builds and releases mobile apps for customers and staff, together with the backend, admin dashboard and integrations they depend on, and keeps them running after launch on the App Store and Google Play.

Mobile apps from ¥350,000 · excl. tax

App project specification仕様書
Platforms
iOS · Android
Approach
One cross-platform codebase, native modules where needed
Backend
Node.js · ASP.NET Core · REST APIs
Data
PostgreSQL · Firebase · Supabase
Admin
Web dashboard for your team
Features
Sign-in · push notifications · offline sync · payments
Release
App Store and Google Play submission
Publishing
Your developer account or ours (approved apps)
Pricing
Apps from ¥350,000
After launch
Care plans from ¥2,500 / month
iOS + Android
from one codebase
Backend
and admin included
Store release
handled for you
¥2,500
Care plans from, per month
What we build開発領域

What we build for mobile.

Apps that do a job for your customers or your staff, and share their data with the website and systems you already run.

Customer apps

Accounts, bookings, orders, loyalty and notifications, in an app your customers keep on their phone.

Staff & field apps

Check-in, inspections, scheduling and internal tools for the people running the business.

Companion apps for web platforms

An app that shares data, logins and admin with your existing website or web app.

Booking & event apps

Reservations, tickets with QR codes and reminders, with the same backend as your booking website.

Membership & community apps

Member profiles, content, payments and messaging for organisations and clubs.

MVPs for new products

A focused first release to put in front of real users before committing to a full build.

Capabilities技術範囲

Everything an app needs, not just the screens.

App features

  • Sign in with email, Apple or Google
  • Push notifications
  • Offline mode and data sync
  • Camera, QR scanning and maps
  • In-app and online payments

Backend & admin

  • REST APIs
  • Databases and file storage
  • Web admin dashboard
  • Roles and permissions

Integrations

  • Payments: Stripe and Square
  • Email and messaging
  • AI features through Tanzz AI
  • Your existing website and APIs

Release & quality

  • TestFlight and internal testing builds
  • App Store review preparation
  • Privacy labels and Data safety forms
  • Crash reporting and versioned releases
TechnologyiOSAndroidTypeScriptNode.jsASP.NET CorePostgreSQLFirebaseSupabaseTestFlightGoogle Play Console
How we work開発プロセス

Six steps, one agreed price.

  1. 01

    Discovery

    Who uses the app, what it must do, and what it connects to.

  2. 02

    Scope & quote

    A written plan, timeline and one agreed price before any work starts.

  3. 03

    UX & prototype

    A clickable prototype you can test on a phone before development.

  4. 04

    Build & test

    Test builds on your own phone at each milestone through TestFlight and Google Play testing.

  5. 05

    Store release

    Listings, screenshots, privacy forms and review submission for both stores.

  6. 06

    Care

    Updates, monitoring and support on a monthly Care plan.

Project pricing料金の目安

Starting prices, fixed before we start.

Every project is different. These are starting points for a defined scope. Once we understand your requirements, you receive a detailed proposal and one fixed price before development begins, so there are no surprise invoices halfway through.

Prices exclude consumption tax.

Mobile apps

An iOS and Android app with sign-in, a backend API, an admin dashboard and App Store and Google Play release.

From
¥350,000

Complex and enterprise apps

Multiple user types, heavy integrations or strict compliance needs.

Custom quote
Care plans保守・運用サポート

Keep your app running. Tsukuba Tech Care.

Building an app is only the first step. After launch, Tsukuba Tech can continue to maintain, monitor and improve your application as your users and requirements grow. Care plans cover ongoing technical maintenance, updates and support for apps built by Tsukuba Tech.

Care Essential

¥2,500/ month

Best for: Small apps with few moving parts

Basic technical upkeep. Not full app maintenance.

  • Routine technical maintenance
  • Dependency and security updates
  • Basic backend monitoring
  • Minor bug fixes
  • Standard technical support
Choose Essential

Care Growth

Recommended
¥5,000/ month

Best for: Apps with active users and a connected backend

For apps that need regular maintenance and technical support.

  • Everything in Essential
  • Performance and crash monitoring
  • Backend and API maintenance
  • Third-party integration support
  • Regular technical reviews
  • Priority support response
Choose Growth

Care Priority

¥10,000/ month

Best for: Apps your operations depend on every day

For applications that are important to your day-to-day business.

  • Everything in Growth
  • Highest support priority
  • Advanced application monitoring
  • Backend and database maintenance
  • AI and integration monitoring where applicable
  • Release and deployment support for store updates
Choose Priority

Custom Care

Contact us

Best for: Enterprise apps and multi-platform systems

Agreed response times, dedicated hours and coverage for the app, backend and dashboard together.

  • Service-level agreement
  • Dedicated monthly engineering hours
  • iOS, Android, backend and admin in one plan
  • Release planning with your team
Talk to us

Every Care plan covers

  • Fixing existing functionality
  • Dependency and security updates
  • Small text, image and configuration changes
  • Keeping integrations working
  • Monitoring and backups

Quoted separately

  • New features, pages or screens
  • New integrations
  • Redesigns and major UI changes
  • Significant new development

New features, integrations and custom development are scoped and quoted on their own, based on your requirements.

Third-party fees are not part of Care

These are project expenses, paid by you directly or billed at cost:

Apple Developer ProgramGoogle Play Console registrationServer and cloud costs outside Tsukuba Tech hostingAI API usageSMS and messaging feesMaps APIsPayment processing feesOther paid third-party services

Care plans apply to websites and apps built by Tsukuba Tech. AI and API usage has a fair-use limit and is billed at cost above it.

Publish with Tsukuba Tech
アプリ公開サポート

Release under Tsukuba Tech for less than going alone.

Approved apps can be published on the App Store and Google Play through Tsukuba Tech's developer accounts, with the backend on our shared infrastructure. You avoid holding your own developer memberships and servers, and the team that built the app handles every release.

  • App Store and Google Play publishing
  • Signing certificates and store listings
  • Review submissions and update releases
  • Backend on Tsukuba Tech Shared Hosting
  • Monitoring and backups
  • Transfer to your own account later

Your own developer accounts

  • You enrol in the Apple Developer Program and Google Play yourself
  • Your company appears as the developer
  • You pay membership fees and your own server costs
  • We release to your accounts with access you grant

Tsukuba Tech developer accounts

  • No developer memberships of your own to buy or renew
  • Backend on shared infrastructure at a lower cost
  • Tsukuba Tech appears as the developer
  • Approved apps only, with transfer to you available later

Approved projects only

Each project is reviewed before it joins shared infrastructure. Approval is based on:

  • Built by Tsukuba Tech
  • Standard backend traffic and storage
  • Meets Apple and Google store policies
  • Not in a category that must be published by your own company

Your brand stays on the app: its name, icon and screenshots are yours. The developer name shown on the store listing is Tsukuba Tech.

Apps in regulated areas such as banking and finance, healthcare, insurance, gambling or government services generally have to be published by the business itself under store rules. We release those to your own developer accounts.

Pricing is quoted per project once it's approved.

FAQよくある質問

Questions? We have answers.

Yes. We build iOS and Android apps, usually from one cross-platform codebase so both versions ship together and stay in step, with native modules where a feature needs them.

Have an app in mind?

Tell us who it's for and what it has to do. We'll reply within one business day with questions, an approach and next steps toward a fixed quote.