App Development Company in Purnia
Cyber Defence builds Android, iOS and Flutter apps for businesses across Purnia, Bihar — simple Flutter apps from ₹40,000, business apps with a backend ₹80,000–₹1,50,000 and e-commerce or delivery apps ₹1,00,000–₹4,00,000. Built by Amit Kumar (CEH, CRTA), with Play Store publishing and full source-code ownership.
Last updated: 6 August 2026
App development cost in Purnia
| Project type | Price | What it covers |
|---|---|---|
| Simple Flutter app | ₹40,000 – ₹80,000 | One codebase for Android and iOS, 4–8 screens, API integration |
| Business app with backend | ₹80,000 – ₹1,50,000 | Logins, admin panel, push notifications, payments |
| Native Android app | ₹50,000 – ₹1,80,000 | Kotlin, for apps that lean on device hardware |
| E-commerce / delivery app | ₹1,00,000 – ₹4,00,000 | Catalogue, cart, live tracking, driver app, dashboards |
One flat written quote after a free consultation. Domain and hosting (or Play Store and Apple developer fees) are separate and stated upfront, never buried.
What businesses in Purnia actually need
Purnia is the commercial capital of Seemanchal, and Gulabbagh mandi is the reason — one of eastern India’s biggest grain markets, dealing heavily in maize alongside makhana and banana. Wholesale distribution for four or five surrounding districts runs through the town, and the airport that opened in September 2025 has begun changing how traders travel.
Trade here is relationship-driven and phone-first; commission agents at Gulabbagh have national buyers but no web presence at all. Meanwhile the coaching sector has exploded and is the one category fighting for local search visibility. Smartphone penetration is high and Hindi-language content performs far better than English in consumer categories.
What people here actually search for: Real searches include "makka rate Gulabbagh mandi today", "maize supplier Purnia", "makhana wholesale price Purnia", "coaching centre Purnia for NEET" and "Purnia airport flight schedule". Hindi and Roman-Hindi dominate, with Maithili and Urdu speakers also typing in Roman script. Daily rate content is an unusually strong, legitimate traffic magnet here.
What that means for the build: Traders and processors need a buyer-facing site with commodity specifications, godown capacity, FSSAI and APMC registration details and a WhatsApp enquiry route. A rate-publishing page updated daily gives a mandi business a reason to be visited repeatedly. Coaching institutes need batch, faculty and result pages with a working admission form.
Landmarks, estates and institutions we reference for Purnia
Gulabbagh mandi · Purnia Junction · Purnia Airport · Purnia College · Line Bazar commercial area. These matter more than they look: local search and AI answers both lean on whether your content names the places your customers actually name. A page that says “serving Purnia” and nothing else is invisible next to one that knows the ground.
Language decides more than you think in Purnia
Business here happens in Hindi, Maithili, Urdu, Surjapuri, English. That is a strategy decision, not a translation job: it changes which keywords have volume, whether customers type in the local script or in Roman transliteration, and what your Google Business Profile description should say. Getting this wrong is the single most common reason a technically clean site still gets no local enquiries.
Sectors we work with here
Areas and neighbours
Katihar · Kishanganj · Araria · Saharsa
Business languages: Hindi, Maithili, Urdu, Surjapuri, English
How the work runs
1. Free consultation
What the app must do, who uses it, and whether you genuinely need an app at all — sometimes a fast mobile website is the honest answer.
2. Flat written quote
One number for the agreed scope, with Play Store and Apple fees stated separately and upfront.
3. Screens you approve
Flow and screen design signed off before build, so you are not surprised at the end.
4. Build with test builds
Flutter, or native Kotlin where it is genuinely warranted. You get installable test builds throughout and use the app on your own phone as it grows.
5. Backend and admin panel
Logins, roles, payments via UPI/Razorpay, push notifications and a dashboard you can actually operate.
6. Store publishing and handover
Listing, screenshots, privacy policy and developer accounts in your name. Full source code is yours.
Straight answer: we have no office in Purnia
Cyber Defence has one office — Red Square Market, Hisar, Haryana 125001 — and works with Purnia clients remotely over calls, screen-share and WhatsApp. Plenty of agencies list a virtual address in every city they want to rank in; that is a false-NAP problem waiting to happen, and we would rather tell you the truth.
For app work it changes nothing practical. You see progress on a staging link or a test build as it happens, rather than waiting for a reveal at the end, and you deal directly with the person writing the code.
We also publish no star ratings or review counts, because we have no verified review corpus and inventing one is fraud. Ask us to put you in touch with an existing client instead.
App Development Company in Purnia — FAQs
What kind of app do Purnia businesses usually need?
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How much does app development cost in Purnia?
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Should I build a Flutter app or native?
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Will I own the app source code?
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Do you publish the app to Play Store and App Store?
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Do you build apps for businesses across Purnia?
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Purnia me app banane ka kharcha kitna hai?
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Other services in Purnia
Get a flat written quote for Purnia
You deal with Amit Kumar directly, not an account manager. If what you need is smaller than what you asked for, we will say so.
Flat written pricing · Full ownership · One office in Hisar, serving Purnia remotely