Most founders start budgeting backward. They pick a number, ask a developer whether it is enough, and hope for the best. A better approach starts with requirements, builds an estimate from the bottom up, and ends with a number you can defend.
This seven-step method helps you build a realistic React Native app budget before you talk to a single vendor. It is written for US founders and product managers who want to compare quotes with confidence.
Step One: Define the Problem and the User
Write two or three sentences describing who the app serves and what problem it solves. If you cannot describe the problem clearly, no estimate will be accurate. Add one measurable goal, such as sign-ups, completed bookings, or hours saved.
Step Two: List Screens and Features
Sketch every screen on paper or in a simple tool. Next to each, write the features it supports. This list becomes the backbone of your brief. A six-screen MVP and a twenty-five-screen product are different budgets, and this step shows you which one you are planning.
Step Three: Rank Features by Value
Mark each feature as essential, helpful, or nice to have. Essential features belong in the first release. The others wait. This ranking is the most powerful budgeting tool you have, because moving features between lists changes cost immediately.
Step Four: Choose a Scope Tier
Match your list to a tier. Typical ranges for a React Native app run roughly as follows:
- MVP or prototype: about $20,000 to $50,000 with a US or UK team, or $5,000 to $13,000 in India, over four to eight weeks.
- Startup app: about $40,000 to $80,000 in the US or UK, or $12,000 to $30,000 in India, over two to four months.
- Mid-complexity app: about $70,000 to $120,000 in the US or UK, or $25,000 to $60,000 in India, over four to seven months.
- Enterprise app: about $120,000 to $250,000 or more in the US or UK, or $60,000 to $150,000 in India, over seven to twelve months.
Step Five: Choose Where and How to Hire
Location and engagement model change the number. US senior developers commonly charge $120 to $160 per hour, while experienced Indian developers often charge $40 to $70. Fixed-price suits tight scope, hourly suits evolving work, and a dedicated team suits long roadmaps.
Decide your approach before you request quotes, so you receive comparable proposals.
Step Six: Add Costs Beyond Development
Add hosting, third-party services, store fees, analytics, security reviews, and marketing. Apple charges $99 per year and Google a one-time $25. Maintenance typically runs 15 to 20 percent of the build cost each year, and first-year running costs often add 20 to 30 percent.
Step Seven: Add a Buffer and Write It Down
Add a contingency of 10 to 15 percent for change. Then write the budget as a simple table with one-time, monthly, and yearly lines. Share it with stakeholders, and update it every quarter.
A Worked Example
Imagine a startup planning a mid-complexity app with an Indian team. It picks the $25,000 to $60,000 tier, lands at $45,000 after ranking features, adds a 12 percent buffer, and reserves about 18 percent of the build cost for yearly maintenance. First-year running costs add roughly 25 percent.
The result is a full-journey budget with a clear total and a clear annual figure, not a single optimistic number.
Common Estimating Mistakes
- Comparing quotes with different scopes.
- Leaving out testing, project management, or deployment.
- Ignoring integrations until late in the project.
- Forgetting maintenance and store fees.
- Skipping a buffer for change.
How to Use Your Estimate With Vendors
Share your brief and ranking with every vendor. Ask for phase-by-phase estimates and for assumptions in writing. Compare where numbers differ and why. A vendor that challenges your assumptions politely is often more useful than one that simply agrees.
Using Quotes to Refine Your Estimate
Your first estimate is a hypothesis. Quotes from vendors test it. If three quotes land close to your number, your scope is probably realistic. If they spread widely, your brief probably leaves too much open, and the gaps are where the money is hiding.
Ask vendors why their numbers differ from your own. The answers often reveal features you forgot, risks you underestimated, or assumptions worth changing.
Updating the Budget After Discovery
A discovery phase of one or two weeks usually sharpens the estimate. Teams map flows, confirm integrations, and surface technical risks. Update your budget with the new information, and share the changes openly with stakeholders.
Treat discovery as part of the budget, not an optional extra. It often pays for itself by preventing rework later.
Presenting the Budget to Investors
Investors respond well to budgets that show the full journey. Present one-time, monthly, and yearly lines, a buffer, and a clear explanation of what the first release proves. Explain why you chose your scope tier and your hiring approach.
A credible budget shows that you understand running costs, such as hosting, store fees, and maintenance, not just development.
Tracking Spend Against the Plan
Once the project starts, compare actual spending with the plan every month. If the cost to build a React Native app drifts above estimate, discuss it early: reduce scope, delay a feature, or adjust the buffer.
Share the numbers with your development partner. Open conversations about money usually lead to better decisions than silent worry.
Handling Budget Changes Mid-Project
Budgets change. A regulation appears, a competitor ships a feature, or a user test reveals a missing flow. Treat changes as decisions, not accidents. Write down the request, estimate its cost and timeline, and approve or defer it in writing. That habit keeps the project honest and prevents quiet drift.
A Simple Budget Template
- One-time: discovery, design, development, testing, and store launch.
- Monthly: hosting, third-party services, analytics, and support tools.
- Yearly: store fees, security review, and operating system updates.
- Maintenance: 15 to 20 percent of the build cost.
- Buffer: 10 to 15 percent for change and 20 to 30 percent for first-year running costs.
Keep the template in a shared document and update it monthly. It becomes the single source of truth for everyone who asks where the money is going.
Share the Budget With Your Partner
Once the budget is written, share it with your development partner. Partners who see the full plan can suggest smart trade-offs, flag unrealistic assumptions, and warn you about hidden costs. Secrecy about money rarely helps either side.
Turning the Estimate Into a Plan
SpaceToTech is a software and mobile app development company based in Noida, India, working with clients in the US, UK, UAE, Australia, and India. If you want a mobile app development partner to review your budget and scope, you can share it with the team and ask for a transparent comparison.
A good estimate is not a promise. It is a map, and you will redraw it as you learn. The goal is to start with a map you can trust.
