For your business
Business App
₹40,000 – ₹2,00,000 in India$3,000 – $10,000 outside India
An app with a few types of user, a control screen for your team, and connections to the services your business already uses.
Built for Founders, Executives & Product Teams
iPhone and Android apps
Mobile App Development for iPhone and Android
We plan, design, build and publish mobile apps for iPhone and Android. Most apps use Flutter, so one codebase runs on both. We write native iOS (Swift) or Android (Kotlin) code when a feature needs it. The backend, the admin panel and the store release are part of the same project, so there is one team to talk to.
App already built and just needs to reach the stores? That is a different job, covered on its own page. Get an app into the App Store and Google Play →
Plain-language updatesPublished starting pricesYou own the code and IP
WHY FOUNDERS & BUSINESSES CHOOSE US
What working with InvoSpec feels like.
No confusing developer speak. Just a collaborative, transparent partner dedicated to making your launch a success.
CommunicationZero guesswork
We Speak Plain English
No confusing tech jargon or acronyms. We explain every decision clearly and host friendly weekly walkthroughs where you see real progress.
Weekly progress updates you can touch and test
LaunchFrom a checklist
A calm launch, from a checklist
We handle the rollout: hosting, signing keys, store submissions and the checks before go-live. If a store rejects a build, we read the reviewer notes, fix what they point at and resubmit. That is part of the job, not an extra.
Store rejectionsFixed and resubmitted, included
PriceAgreed before work starts
What affects the price
Four things move the price for this kind of work. Answer them roughly and we can tell you on the first call which package fits. You see what is included and the price before anything is built.
- How many screens, and how many kinds of user: customers, staff, admins?
- Flutter for both platforms, or native code for one of them?
- Does it need to work offline, take payments or send notifications?
- Is there a backend to connect to, or do we build one?
Full Ownership
You own the code and the IP
Everything we make for you is yours on payment: code, designs and documentation. You have access to the repository from the first day, so nothing is ever held back.
- Repository access from day one
- Clean, well-documented source code
Zero ongoing licensing fees to InvoSpec
CLEAR & TRANSPARENT
From Idea to Launch in 4 Simple Steps
Here is what working together looks like. A short written update every week, and every two weeks a version you can try yourself.
01Step 1
Discover & Design
We find out who will use the app and what it must do for your business. Then we agree what is included, the design direction and the price.
What you get:Clear roadmap & visual prototype
02Step 2
Build, with previews
The engineers turn the plan into a working app. You get a written update every week, and every two weeks a version to try on your own phone.
What you get:A version to try every two weeks
03Step 3
Polish & Quality Check
We test the app against the cases that break apps in real use: bad signal, older phones, wrong input, many users at once. Problems found here are fixed before launch.
What you get:Tested before anyone else sees it
04Step 4
Launch
We set up hosting and store accounts in your name, run the go-live checklist, and release to the App Store and Google Play. Then the maintenance package, if you want it, takes over.
What you get:Your app live in the stores
CORE CAPABILITIES
What We Deliver
What this service delivers. The package and the written plan list exactly what else is included.
The app for iPhone and Android, from one Flutter codebase or native where needed
Included
The backend and admin panel the app needs, set up in your name
Included
Testing on real phones, crash reporting and a repeatable release process
Included
Store listings, submission and review handling for the App Store and Google Play
Included
Packages
Packages for this service
Starting prices for a written scope. The exact price follows the plan you approve.
You own the code. Everything we make for you is yours as soon as each stage is paid for, and you can see the code from the first day.
Prices for
- Bigger apps
Growth App
₹3,00,000 – ₹10,00,000+ in India$10,000 – $25,000+ outside India
A larger app built in stages. It has the reports, connections and live features a growing business needs.
All packages, what each includes, and what is always extra →
I want to…
Goals this service helps with
Start from what you want to achieve. Each page explains what you would get, what affects the price and what you need to bring.
Take bookings or orders onlineAn app where your customers book or order, a screen where your team sees and manages it, and reminders that cut no-shows.What you would get
Run deliveries or field staff from one screenAn app for drivers or technicians, a screen for whoever assigns the work, live location and proof that the job was done.What you would get
Get an app into the App Store and Google PlayWe take a finished mobile app through developer accounts, signing, testing tracks, store listings and review, and keep it compliant after launch.What you would get
Read first
Guides before you decide
What to decide first, what affects the price, and what to ask any developer, including us.
3 min read
How much does an app cost? Three examples, priced
Three example apps walked through our published packages: which package each fits, what pushes it into the next one, and what the app costs to run.
Read2 min read
What the Lean MVP package includes, and leaves out
Each part of our Lean MVP package explained in plain words: why it is in, why the rest is out, and how to add something without surprises.
Read3 min read
Custom app or off-the-shelf software: how to decide
A practical test for choosing between a ready-made tool and an app built for your business, with the questions that usually settle it.
Read
BY INDUSTRY
Apps for businesses like yours
What businesses in each industry usually need from an app, and the problems the app has to handle.
Healthcare & HealthTech
Compliant, secure patient management portals, telehealth video apps, appointment schedulers, and clinical tools.
Education & EdTech
Interactive mobile learning apps, student management systems, automated attendance, and examination platforms.
Retail & E-Commerce
Fast shopping apps, multi-branch inventory sync, custom point-of-sale (POS) systems, and order dispatch workflows.
Logistics & Supply Chain
Real-time driver apps, live GPS tracking, delivery dispatch engines, and warehouse intake management.
Finance & Accounting
Automated invoicing, recurring billing engines, expense tracking portals, and secure transaction ledgers.
Talk to an engineer
Tell us about your app
A sketch, a detailed brief, or just a problem you want an app to solve. Tell us what you have and we will tell you what we would do first.
A free first call: which package fits, what would change the price, and what to build first.
100% confidential: We're happy to sign a Non-Disclosure Agreement (NDA) before our first call.
No sales pressure: you talk with an engineer, not a salesperson.
COMMON QUESTIONS
Questions people ask, answered in plain English
What to know before you start your app.
Should we build with Flutter or native code?
For most business and consumer apps we recommend Flutter: one codebase runs on iPhone and Android, so there is one app to build, test and maintain. We write native iOS (Swift) or Android (Kotlin) code when a feature depends on hardware or a platform tool that Flutter cannot reach well.
Do you handle the App Store and Google Play publishing?
Yes. We prepare the signing keys and release builds, check the app against Apple and Google rules, write the store listings, and handle the review, including any rejection.
Do we need separate apps for iPhone and Android?
No. One Flutter codebase builds both apps. We write native code only for the parts that need it, such as a particular Bluetooth device or payment tool.
Can the app connect to our existing website or system?
Yes. If your system already has a way for apps to connect, we use it. If not, we build the backend as part of the project.
Who owns the app and the store accounts?
You do. The developer accounts are registered to your company, the signing keys are yours, and the code is yours on payment.