You need a mobile app. Not a website. Not a WhatsApp bot. A real iOS and Android app that your customers can download and use offline. And you're looking at companies in Bengaluru because they're cheaper than Bangalore's reputation suggests, but you don't know if cheap is actually good.

This guide is for Indian business owners who need a mobile app but have never built one before. We won't tell you Bengaluru has the "best" developers—we'll tell you what they cost, what you should expect, and how to avoid hiring the wrong team.

What You're Actually Paying For

When you hire a mobile app company, you're paying for three things: strategy, engineering, and ongoing support.

Most business owners only think about engineering—the code itself. That's the mistake.

A team will spend 20-30% of your budget on understanding what your app should do. This includes user research, sketching workflows, and testing ideas with 50 of your actual customers before writing a single line of code. This costs money and takes 4-8 weeks. Most cheap agencies skip this and start coding immediately. That's why their apps fail.

Another 60-70% goes to engineering: writing code, testing it, fixing bugs, and rebuilding when the original approach doesn't work (it always does). This is the longest part and the most expensive.

The final 10-20% is ongoing support: hosting, security patches, bug fixes, and new features. Many business owners are shocked that the app doesn't end when launch day comes. A finished app is a living thing. If you stop paying for support, it breaks in 6-12 months.

Pricing Models: Fixed vs. Time & Materials

Bengaluru agencies offer two basic pricing models. They'll each tell you theirs is better. Both are right, in different situations.

Fixed Price (also called "fixed scope"): You pay one amount—say ₹15 lakhs to ₹30 lakhs for a simple app—and the agency delivers a finished product. Sounds safe. It's not always.

Fixed price works only if you can describe exactly what the app should do before development starts. Most business owners can't. So what happens? The scope creeps. You ask for "just one small feature," and the agency says "that's out of scope—₹1 lakh extra." You end up paying 20-30% more than quoted, and both sides are frustrated.

Realistic fixed-price ranges for Bengaluru in 2026:

  • Simple app (single platform, basic features): ₹12-25 lakhs
  • Medium app (iOS + Android, 15-20 features): ₹30-60 lakhs
  • Complex app (payments, real-time sync, third-party integrations): ₹60-150 lakhs+

Time & Materials (T&M): You pay for hours worked, usually ₹40,000-80,000 per developer per month (junior to senior). You pay only for what's spent. More flexible, but riskier for your budget because the final bill depends on how much work is actually needed.

T&M works if you're willing to discover the scope as you go. It also works if you're hiring a small team (2-3 developers) for 6-12 months, not a huge project. Many Bengaluru startups use T&M because they don't know exactly what they want yet.

Real example: A local restaurant chain hired an agency on T&M to build an app. They estimated 4 months and ₹8 lakhs. The actual cost was ₹12 lakhs and 6 months because they added delivery tracking, loyalty points, and inventory integration as they learned what customers wanted. The extra features made the app successful. If they'd locked in fixed scope, those features would have come later and cost much more.

Red Flags When Talking to Agencies

Interview at least three agencies. When you do, listen for these warning signs:

"We can build your app in 6 weeks for ₹5 lakhs." This is a lie. A simple app takes 12-16 weeks minimum if it's built well. A cheap quote means corners will be cut—code quality, security, or testing.

"We have a template. We'll just customize it for you." Sometimes templates make sense for very standard apps (calculators, note-takers). But most business apps are unique. Templates usually mean slower, buggier apps that feel like every other app. Ask to see examples.

"No, we don't do user research. Let's just start building." If an agency doesn't push back and ask "who is your user?" and "what job does the app do for them?", they're not thinking strategically. They're just coding.

"We build iOS and Android separately." This is normal—the code is different. But asking if they use a framework like React Native or Flutter is fair. These frameworks let one team build both platforms faster, usually saving 30-40% on cost and timeline. Some agencies avoid them because they make less money doing the work twice.

"We'll sign an NDA, but we need 50% upfront and 50% on delivery." An NDA is fine. But 50-50 payment is skewed toward the agency. Better terms are 30% to start, 40% at midpoint (around week 8), 30% at launch. This way, if the agency disappears, you've limited your loss.

Questions to Ask Before Signing

Write these down and email them to every agency you interview. Their answers will tell you a lot.

"How many apps have you shipped in the last 24 months? Can you share 3 examples—the app name, the platforms, and the launch date?" Vague portfolios are a red flag. You want proof they ship finished work, not abandoned projects.

"Who owns the code after launch?" The answer should be: you do. You get all source code, design files, and documentation. If the agency says "we keep it on our servers," that's a lock-in tactic. Avoid.

"What happens after launch? What's included in support, and what costs extra?" A good answer: "First 30 days of bug fixes are free. After that, you can buy a ₹30,000-50,000 per month maintenance plan that includes 20-30 hours of updates and support." A bad answer: "We'll figure it out later."

"If I need to switch teams or bring work in-house, how easy is that?" They should say it's straightforward—documentation, handover meetings, and source code access. If they're evasive, they're betting on lock-in.

"Have you built an app in my industry?" Not strictly necessary, but helpful. If they've built for other restaurants or e-commerce brands, they understand the regulatory and feature requirements faster.

Building vs. Buying vs. Outsourcing

Before you spend ₹20+ lakhs, ask: do I need a custom app at all?

Buying (using no-code platforms): Tools like Bubble, Flutterflow, or even Shopify can generate a mobile app in weeks for ₹2-8 lakhs. The catch: they have limitations. You can't customize everything. You're locked into their ecosystem. But for a first app, or if your needs fit their templates, it's fast and cheap.

Building: Hiring an agency to build a custom app costs more (₹20-100+ lakhs) and takes longer (12-24 weeks), but you own the code and can modify it forever. Better for companies planning to invest long-term.

Outsourcing (hiring offshore developers): You can hire developers directly from Bengaluru (or elsewhere) on Upwork, Toptal, or AngelList instead of using an agency. Costs ₹25,000-60,000 per developer per month. Saves money, but you're managing the team yourself. Only recommended if you have a technical co-founder or hire a tech-savvy project manager.

Most business owners should hire an agency, not individual developers. Agencies handle hiring, firing, and replacing team members if someone leaves. You deal with one point of contact.

The Real Timeline

Most Bengaluru agencies will tell you 12 weeks. Most will deliver in 16-20 weeks. Here's why:

  • Discovery & design: 4-6 weeks. Understanding your business, sketching the app, getting feedback, iterating.
  • Development: 8-12 weeks. Writing code for both platforms, testing, fixing bugs. This is the longest part.
  • Testing & launch: 2-4 weeks. Final testing, app store submissions (Google Play and Apple require reviews), and fixing last-minute bugs.
  • Post-launch support: ongoing. First week will have urgent bugs. Plan for this.

If an agency promises less than 12 weeks total, ask them to break down the timeline. They're either skipping discovery or overstaffing the project (which costs more).

One more thing: app store reviews take 3-5 days for Google Play, 1-3 days for Apple's App Store, but can take longer if there are rejections. Plan for delays. Don't schedule your launch day assuming both stores will approve on the first try.

What to Watch Out For After You Hire

You've signed the contract. Now what?

Ask for weekly check-ins and a shared dashboard or document showing progress. You should see design mockups by week 6, working features by week 10, and a testable version by week 14. If the agency goes dark for 3 weeks, that's a sign the project is in trouble.

Insist on reading the code occasionally. You don't need to understand it, but seeing a bunch of code in GitHub or GitLab means they're actually building. If they're evasive about code access, that's a problem.

Budget for a 20-30% contingency on timeline and cost. This accounts for scope creep, design revisions, and the unexpected complexity that every app reveals halfway through.

The cheapest agency is rarely the right choice. The most expensive usually isn't either. Look for teams that have shipped 5-10 apps in the last two years, can show you real examples, and aren't trying to upsell you on unnecessary extras.

Your app is a long-term investment. Pick a team you can work with for 12-24 months, not just 16 weeks.