Software and app development · Missouri
Mobile app development company in Missouri that ships in 5 to 10 weeks
Looking for a mobile app development company in Missouri? We build mobile apps, client portals, map-based web apps and internal tools for Missouri firms, working remotely from San Francisco. Most builds cost $7,000 to around $30,000, the first release lands in 5 to 10 weeks, and you own every line of code.
Written scope and quote after the call. NDA on request. You own the code.
Teams we have built software for
Book us if you want a secure client portal, field app or map-based app scoped in writing, launched in about 7 weeks and handed over with the code in your name.
We are based in San Francisco: 16 in-house engineers and 30+ remote specialists, two hours behind St. Louis, Kansas City and Springfield, which gives us about six shared hours a day. Our clients include Citi, Spirit Airlines and the Miami Dolphins.
Apps and software we build for Missouri businesses
Wealth management and financial advisory firms
Clients email statements and tax documents back and forth, and nobody can prove who saw what.
A secure client portal with multi-factor login, document exchange, e-signature and an access log your compliance team can export.
Logistics and distribution companies
Dispatchers juggle loads on a whiteboard and customers call to ask where their freight is.
A map-based dispatch board with driver check-ins and a tracking page for customers.
Real estate and title firms
Deals stall because agents, lenders and buyers wait on documents nobody is tracking.
A shared transaction timeline with document requests and milestones, like Homer, which cut average time to close from 43 to 32 days.
Animal health and ag suppliers
Distributors order by phone and field reps keep their own spreadsheets.
A distributor ordering portal and a rep app that share one product and pricing database.
Planning something like this in Missouri? The first call is free and you leave with a clear next step.
Get a free project quoteWhat does it cost to hire our mobile app development company in Missouri?
$7,000 to around $25,000-$30,000
Our own price for a Missouri build, project-based or hourly, in writing before any work starts. Design, the build, testing, store launch and a handover in your name are included; the pricing page lists what is in and out.
How to compare app development companies in Missouri
Ask every firm on your Missouri shortlist for a written price, launch times on named projects, who writes the code, and whose name the code and store accounts are in. Our answers: $7k to $30k, a first release in 5 to 10 weeks, Shivam Pujara's in-house team, and everything in your name. The full list is in how to choose a software development company.
Builds closest to what Missouri businesses need
All 44 builds →
How a build works, from first call to handover
Across our published builds the first release shipped in 5 to 10 weeks, with a median of 7. Integrations and compliance work add more time than screens do. See how long our builds took.
Free 30-minute project call, then written scope and quote, then design you approve, then build with weekly demos, then test and launch, then handover you own, then support when you need it.
Get a free project quoteWhat clients say
“Working with [our team] was the best decision we made in this process. We went from a 6 month development cycle to a 10 week timeline.”
“They translated very complex operational processes into software that feels simple for our team to use.”
“Communication was clear, timelines were realistic, and the final product matched what was scoped.”
What do you want to build in Missouri?
For Missouri clients we build mobile apps, web apps and SaaS, AI features, custom software, MVPs and CRM setups.
What our mobile app development team builds for Missouri firms
Running an advisory, insurance or payments firm in St. Louis or Kansas City? We build customer portals with multi-factor login, document upload, e-signature and access logs, so clients stop emailing statements and your compliance team can see who opened what. For field teams, we build mobile apps reps and drivers use on their phones, with the office seeing the same data live.
If your work lives on a map, we build web apps with search by location, territories, routes and field data capture on phones. GoHangars, a marketplace we built in 7 weeks, reached 1,240 listings across 38 states in six months with map search at its core. Every project runs on weekly demos and a staging build, and ends with the code, accounts, a recorded walkthrough and written docs in your hands.
How to hire an app developer in Missouri: 5 things to settle first
- Which data rules apply to our app?
Missouri's breach law requires notice without unreasonable delay, and finance firms carry federal and regulator rules, so name the data in scope early.
- Will Missouri tax our subscription software?
Missouri regulation 12 CSR 10-109.050 says software as a service is not subject to sales tax, which is worth knowing if your app will charge subscriptions.
- Which map service and data will we use?
Decide which mapping service and data you will use, and check its terms for your traffic and use case before the build starts.
- Will we own the code and accounts?
Make the contract say you own code, hosting and app store accounts. With us it does, plus a recorded walkthrough and written docs.
- What will it cost, in writing?
Screens, integrations and milestones written down before work starts. Our pricing page explains the range.
Which Missouri laws change how your app is built?
The Missouri rules we design consent screens, data retention and breach logging around. A planning summary, not legal advice.
| Rule | What it means for the build |
|---|---|
| Consumer privacy law | No comprehensive consumer privacy law in force as of 2026-10-31. Apps serving users in other states still need to meet those states' rules, and sector laws (health, finance, children) apply regardless. |
| Data breach notification | Mo. Rev. Stat. § 407.1500: notice deadline without unreasonable delay. We build audit logs that show what data was touched, so notice can be accurate and on time. |
| Sales tax on SaaS | not taxable: 12 CSR 10-109.050(3)(I): 'The sale of software as a service is not subject to tax'; customized software not taxable; prewritten software on tangible medium taxable.. Relevant if you will sell your app as a subscription. |
| Time zone | Central. Our team works from San Francisco (Pacific), with remote specialists covering other hours, so Missouri working hours overlap with ours every weekday. |
Checked 2026-10-31 against state sources; confirm with counsel before launch.
Engineers you can talk to
16 in-house engineers plus 30+ remote specialists, and 44 published builds with the results each client saw.
Alpit PatelFounder and CEOEngineering is led by co-founder and CTO Shivam Pujara.Mobile app development company in Missouri: questions people ask
How much does app development cost in Missouri?
We price most apps and web apps at $7,000 to around $25,000 to $30,000. A focused portal with a few screens lands near the low end, and a product with payments, maps, several user roles and integrations lands near the top. The price is the same for Missouri as anywhere, and it is written down after a free 30-minute call.
How long does it take to develop an app for a Missouri business?
First releases across our 44 published builds took 5 to 10 weeks, with a median of 7 weeks. GoHangars' map-based marketplace shipped in 7. Financial portals often take a little longer because of security reviews and integrations with core systems. Once the scope is agreed, the timeline goes into the written quote.
Can you build a secure client portal for a financial services firm in Missouri?
Yes. A typical portal includes multi-factor login, document upload and e-signature, statements, messaging and an advisor admin area. Data is encrypted in transit and at rest and every access is logged. Your compliance team sets retention and record-keeping rules, and we build them in and document how they work.
What Missouri laws apply to a custom app?
Missouri's data breach law, section 407.1500, requires affected residents to be notified without unreasonable delay. Federal rules still apply to health and financial data, and customers in other states may bring their own state laws into play. If you sell subscriptions, Missouri regulation 12 CSR 10-109.050 says software as a service is not subject to sales tax. We design to what your counsel specifies.
Can you build a map or geospatial app?
Yes, at the application layer. We build map search and filtering, territories and service areas, routing, address geocoding and field data capture on phones, using established mapping platforms and your existing GIS data. GoHangars lets aircraft owners search 1,240 listings by airport across 38 states. We do not take classified work.
Do you work with companies in St. Louis, Kansas City and Springfield?
Yes, remotely from San Francisco. Missouri is on Central time, two hours ahead, so we share about six working hours a day. Every project runs on a written scope, a weekly demo and a staging build your team can test. We have no Missouri office and never claim one.
How long does it take for an app to get approved on the App Store?
Apple and Google both review an app before it goes live, and the wait varies with the app and the time of year, so we never promise a date we do not control. We plan for it instead: we submit a test build early, follow both stores' review guidelines from the first screen, and fix any rejection notes quickly so your launch date holds.
How much does it cost to keep an app on the App Store?
$99 a year for Apple's developer program, which keeps your app listed while the membership stays active. Google Play has no yearly fee after its one-time $25 registration. Beyond the stores, you pay for hosting and any paid services, plus developer time for updates. We bill support after launch per hour, only when you need it.
What are the top mobile app development companies in Missouri?
Search results for that question are mostly directory listings and top 10 articles written by agencies, often ranking the author first. A better shortlist comes from verified client reviews on directories like Clutch. Then compare each firm on price in writing, named clients, who writes the code and who owns it. We publish all of that, so you can check us the same way.
What should I look for when hiring a mobile app development company in Missouri?
Look for proof first: published builds with named clients and results. Then ask who writes the code, get a written scope and price before anything starts, and confirm that code and accounts end up in your name. Those answers matter more than whether the team sits in Missouri.
More answers from our engineers
App development in Missouri cities
More states in the Midwest
Sources
- Missouri Partnership, Financial services (two Federal Reserve Banks, nearly 10% of US reinsurance employees), checked Nov 3, 2026
- Missouri Revised Statutes 407.1500, data breach notification, checked Oct 31, 2026
- Missouri 12 CSR 10-109.050, software as a service not subject to sales tax, checked Oct 31, 2026
Free project call
Building an app in Missouri? Pick a time for your free call.
Tell us what you want to build, then choose a 30-minute slot. You leave the call with the scope, the risks and a realistic timeline, and a written quote follows. Typical builds run $7,000 to around $25,000-$30,000.
- A written scope and price before any work starts
- First release in 5 to 10 weeks on our 44 published builds
- Code and accounts in your name from the first commit
- NDA on request, signed before you share details
Rather write it down? Send us your brief or email info@aibrevo.com.
- Details
- Time
- Confirmed
Free project call with Alpit Patel
Pick a day
You are booked.
With Alpit Patel
Before the call
- Accept the calendar invite so the call sits in your calendar with the Meet link.
- Jot down what the app should do: who uses it, the three or four things it must handle, and any deadline.
- Have examples handy: apps you like, sketches or screenshots, and the tools it needs to connect to.
Need a different time? Reschedule or cancel.