An independent product studio

Appna Studio is a product studio from India building websites, web and mobile apps, SaaS platforms, games and connected hardware — for clients worldwide, from first sketch to production.

01Selected work

We don’t hand over a zip file and disappear. These are platforms we designed and engineered ourselves, and keep improving long after launch.

01Mobility · Trust infrastructure

KnowyourMechanic

Service records customers can actually trust.

A garage logs a service against the customer’s phone number, the customer confirms it with an OTP, payment lands on the garage’s own UPI — and a verified record is written to both sides.

Platforms from one codebase
3
Role types, policy-enforced
5
Customer-verified records
OTP
React 19CapacitorSupabasePostgres RLSEdge Functions
02Manufacturing · Operations SaaS

KnowyourInventory

An operating system for production floors.

Raw materials, recipes, work-in-progress and finished goods in one live view — built for manufacturers who have outgrown spreadsheets.

Multi-level recipes
BOM
Procure-to-pay flow
P2P
Low-stock alerts
Live
ReactTypeScriptREST APIRole-based auth
03Media · Utility

SRT Merger

Many subtitle files. One clean timeline.

Merge multi-part subtitle files into a single, correctly shifted timeline — entirely in the browser, with nothing uploaded anywhere.

Bytes sent to a server
0
Integer-precise timing
ms
ReactTypeScriptViteClient-side processing

Client websites

Brand and company sites for businesses that want a credible, fast front door — built to the same engineering standard as our products.

Free website check

Enter your address and in about 30 seconds you’ll get a report: how long it takes to load on a typical phone, what’s slowing it down, what Google can’t read, and the three fixes that would make the biggest difference. We’ll email you a copy too.

  1. 1Enter your siteand your email
  2. 2See your scorein about 30 seconds
  3. 3Get the PDFwith the top 3 fixes

Your website + where to send the report

  • Free
  • Results in ~30 seconds
  • Same engine as Google
  • No call needed
Sample report1 page · PDF

38

of 100

Mobile speed score

Most visitors leave before it loads.

Main content appears
18.4 safter fixes1.9 s
Wasted download per visit
2.9 MBafter fixes0.3 MB
Google can read
5 of 9after fixes9 of 9

Top 3 fixes

  1. 01Resize and compress the hero images
  2. 02Load scripts after the page appears
  3. 03Add page titles and descriptions
02Interactive

Real-time 3D, characters with routines of their own and tight game feel — no installs, no app stores. The same engineering discipline as our products, with tests that play the levels.

Check-In — in-game screenshot
Co-op horror · 1–4 playersG—01

Check-In

Be in your room by eleven. Or it will call you.

Stay out past 11 PM at the Hollowmere Hotel and the power dies, your real phone rings, and something faceless chases you down four floors to the front doors.

Players, co-op in the browser
1–4
When the power dies
11 PM
Killbook3D — in-game screenshot
Multiplayer social deductionG—02

Killbook3D

Find the book. Write the names. Don’t get voted out.

A first-person multiplayer whodunnit in the browser: whoever finds the hidden Killbook secretly becomes the Killer, and everyone else has to work out who before their own name is written.

Modes: Killer, or Killer + Detective
2
Rounds between meetings
3 min
Last Flame — in-game screenshot
3D platformer · BYOG 2026G—03

Last Flame

Everything burns out. Carry the fire anyway.

You are a small flame with seconds to live. Run, jump and dash across nine floating levels, burning every lamp you pass to buy a little more time.

Hand-built levels
9
Cost of a dash
1s
Jugaad Escape — in-game screenshot
First-person stealth · ComedyG—04

Jugaad Escape

Nobody goes home until Motu Sir says so.

6 PM at Bharatiya Jugaad Bank. The shutter is down, the gate padlocked, the doors bolted. Get through all three with whatever the office has lying around.

Doors between you and home
3
Hard deadline
11 PM
03Hardware lab

A custom gateway that speaks to the battery management system over UART and to a technician’s phone over BLE — with every parameter change signed into an audit ledger.

In developmentEngineering notes

KnowyourEV — diagnostics and control for EV battery packs.

Pack

JBD BMS

Battery management · protection, balancing, state of charge

UART
Gateway

Custom gateway

Our own firmware · secure BLE · byte-level contract

BLE
Field

Technician app

Live instrumentation · on-site parameter writes

HTTPS
Cloud

Broker + ledger

Policy, remote commands, signed audit trail

Pack KEV-0217 · live

BLE -58 dBm

78%

SOC

Pack

53.07 V

Current

-16.2 A

Temp

32.0 °C

Δ cell

46 mV

C01min 3.290 V · max 3.336 VC16

UART frames

  • TXDD A5 03 00 FF FD 77
  • RXDD 03 00 1B 14 A2 FB 3C …
  • TXDD A5 04 00 FF FC 77
  • RXDD 04 00 20 0C D8 0C DA …

Audit ledger

  • Cell OVP

    tech-014 · on site

    3.65 V → 3.60 V

  • Charge OCP

    support · remote

    40 A → 35 A

  • Balance start

    tech-009 · on site

    3.40 V → 3.38 V

Illustrative readout. Pack data shown is simulated.

04Studio

Design, engineering and launch under one roof, for founders and businesses in India and around the world — so nothing gets lost between the people who imagine a product and the people who build it.

01

Discover

We map the problem, the people and the constraints before a single screen is drawn.

02

Design

Flows and interfaces prototyped early and tested against the real workflow.

03

Engineer

Typed, tested, reviewed. Built to be maintained — not just to demo well.

04

Launch & run

Deployment, monitoring and iteration after go-live. We stay on.

Products, sites and games shipped or in build
10
Platforms: web, iOS, Android and embedded
4
Team from first sketch to production
1
05FAQ

The things founders and businesses usually ask before starting a website or app project.

What does Appna Studio build?

Websites, web apps, mobile apps for iOS and Android, SaaS platforms, browser and mobile games, and software for connected hardware (IoT). We design, develop, launch and maintain them end to end.

How much does it cost to build a website or app?

It depends on scope. A company website costs far less than a multi-role SaaS platform or a mobile app with a backend. After a short call we send a fixed-scope proposal with a clear price and timeline, so there are no surprises.

How long does it take?

A company website typically takes one to three weeks. A first version (MVP) of a web or mobile app usually takes six to twelve weeks, depending on features. We ship in small milestones so you can see progress every week.

Do you work with international clients?

Yes. We work remotely with founders and businesses in India and around the world, with calls scheduled in your time zone and progress shared in writing so nothing depends on overlapping hours.

Can you build one app for both iOS and Android?

Yes. We build mobile apps from a single codebase that ships to both the App Store and Google Play, with native features such as Bluetooth, camera and OTP sign-in where the product needs them.

Will I own the code and the product?

Yes. The code, designs, accounts and data are yours. We set everything up in your name and hand over the repository and documentation.

Do you offer support after launch?

Yes. We stay on after go-live for hosting, monitoring, fixes and new features, so the product keeps improving instead of being handed over and forgotten.

06Contact

Tell us what you’re building. Every enquiry gets a considered reply with honest thoughts on scope, approach and timeline.

Need an official quote? Attach your RFQ (request for quotation) or project brief to the form, and we’ll reply with a formal, itemised quote.

I’m interested in