Mobile app development · iOS & Android
Mobile Apps Designed, Built and Launched by Jiss Tech
The strongest credential a mobile developer can show you is an app you can download right now. Explore Kalamna on the App Store, and TimeStop and ALTER on Google Play — products made by Jiss Tech.
Download the proof
Our own apps, available across both stores.
Kalamna — group voice chat
iOS · App Store
Live voice rooms, drop-in hangouts, private messaging, follows, and communities built around spontaneous conversation — real-time audio at consumer-app polish.
TimeStop — precision timing game
Android · Google Play
The clock goes dark, you count the seconds, and the game scores your stop to the millisecond — with global leaderboards, daily and weekly challenges, 1v1 duels, and 45 levels across 5 worlds.
ALTER — speak your mind.
Android · Google Play
A social app by Jiss Tech for sharing thoughts, finding communities, and staying connected through messages, group chats, and voice and video calls.
What we build
From business tools to consumer products.
Business & customer apps
Bookings, orders, customer accounts, and field tools — the mobile front door to the systems that run your business.
Real-time & social
Live voice rooms, presence, messaging, and communities — the hard real-time engineering behind Kalamna is engineering we've already done.
Games & consumer apps
TimeStop scores your sense of time to the millisecond, with global leaderboards, daily challenges, and 1v1 duels — designed and shipped in-house.
Connected to your systems
Apps that talk to your CRM, payments, and operations platform through the same production-grade integrations we build everywhere else.
Store launch & operations
App Store and Google Play submission, release management, crash monitoring, and updates after launch.
From idea to shipped
Design, engineering, backend, launch — one accountable team, one fixed scope, no handoffs between vendors.
Frequently asked questions
Mobile app development, answered plainly.
Do you build for both iOS and Android?
Yes. Kalamna, our group voice-chat platform, is live on the Apple App Store. TimeStop, our timing game, and ALTER, our social app, are live on Google Play. We'll recommend native or cross-platform based on what your app actually does.
How much does a mobile app cost to build?
It depends on what the app does, so we scope fixed-price before any build starts. A focused business app — bookings, customer access, field data capture — costs a fraction of a consumer social platform. You'll get a written number, and a recommendation for the smallest version worth shipping first.
Do you handle App Store and Google Play submission?
Yes — accounts, listings, screenshots, review requirements, and the inevitable back-and-forth with app review. We've been through both pipelines with our own products, so nothing about the process is new to us.
Does the app need a backend?
Almost always — accounts, data sync, notifications, and payments all live server-side. We build the backend and the app as one system, which is where building with a product-engineering company beats hiring an app-only shop.
Budgeting an app? Our free software cost calculator turns a feature list into a cost range, phase count, and suggested architecture.
Have an app in mind?
Tell us what it should do. You'll get an honest read on the smallest version worth shipping — and a fixed price to get it into the store.