Apps people keep, built by a team that runs its own.
We design, build and launch iOS, Android and Flutter apps for startups and growing businesses, at roughly a third to half of typical agency rates. Our own app, Mobile Mandir, runs on the same process.
30+ in-house specialists design, development, QA and growth
✓App Store reviewApproved in 1 day
⚡Cold start1.2s on a mid-range phone
★New review“Smooth and simple to use”
12 wksaverage MVP build
92%projects shipped on time
200+projects delivered
Trusted by founders, growing businesses and enterprise brands
In short
What does an app development company do?
An app development company plans, designs, builds and launches mobile apps for iOS and Android, then maintains them after release.
✓One team from idea to App Store and Google Play
✓Fixed quote and dated plan before work starts
✓NDA signed, and you own the code and IP
It brings product managers, designers, developers and testers under one roof, so founders and businesses can turn an idea into a working app without hiring a full in-house team.
At Seoily, one senior in-house team takes your app from discovery to App Store launch and beyond. We build in Flutter, React Native or native Swift and Kotlin, demo progress every two weeks on a call in your time zone, and support the app after launch. We run our own app, Mobile Mandir, the same way.
Devotional · Seoily productA daily-pay insurance app for 10K+ Uber driver-partnersDrivers buy and manage a plan in a few taps. Our team also built the sales dashboard and runs the call center that sells and supports every policy.
Workforce · ClientAn instant-pay app that pays daily workers the same dayTimesheets come straight from Magnit and SAP, a manager approves the hours, an admin releases the money, and the worker is paid the same day.
Agriculture · ClientOur own devotional app with verified sevaPrayers, temple visits and seva booked from home, with video proof for every seva. We design, build, market and support it ourselves.
Travel · ClientThe vendor app behind every sevaVerified partners accept seva jobs, upload video proof and track earnings. Profiles are approved before the first assignment.
92% of our projects ship on or before the agreed date. Final plan and price come after a short call.Get my exact quote →
Pricing
How much does app development cost?
Most apps we build cost between $5,300 and $88,000. The price depends on the number of platforms, user roles, features and integrations, and whether you start from a proven template or a custom design.
Template appProven app flows with your brand, live in 4–8 weeksFrom $5,300per app
✓iOS and Android from one codebase✓Your branding and content✓Admin panel included✓App Store and Google Play submission
Quality you can checkFast, stable and rated well, on live numbersFH One platform · Firebase Crashlytics, PageSpeed Insights and store listing · updated weekly
96PageSpeed score, mobile
99.6%crash-free sessions
4.7★App Store rating
99.98%uptime, last 90 days
1.8slargest contentful paint
100Lighthouse best practices
Why Seoily
Why growing teams pick Seoily for their app
One team that builds, launches, grows and supports, so nothing gets lost between agencies.
01Senior in-house team, no freelancers30+ designers, developers, QA and marketers in our Mohali office, working hours that overlap yours.
02We run our own appsMobile Mandir and MM Partners are live on both stores, built and run by us.
03Fixed quote, your time zoneA fixed quote and dated plan after discovery, and weekly calls at a time that suits you.
BUILDLAUNCHGROWSUPPORT
SEOILYYour app
04A third to half the costSenior product work at roughly a third to half of what a large agency charges.
05Build, launch and grow in one placeApp, store listing, campaigns and call center support from one team.
06NDA, and you own the codeNDA before discovery, SOC 2-style access controls, and all code and IP transferred to you.
Can’t find yours? Ask in the chat below and a real person replies.
It depends on platforms, features and integrations; the pricing table above shows typical ranges. After a 20-minute call and a short discovery, we send a fixed quote with a dated plan, so the price doesn’t move unless the scope does.
A template-based app takes 4–8 weeks, a custom MVP 10–14 weeks, and a large multi-platform product 4–18 months. Use the estimator above for a quick range.
Yes. We work with clients worldwide, schedule calls in your time zone, work hours that overlap your workday, and give you one account lead who answers within hours.
Through Slack or email day to day, a weekly video call in your time zone and a shared board that shows every task. You also get a new build on your phone every two weeks.
You do. We sign an NDA before discovery, and the source code, store accounts, design files and all IP are transferred to you.
Your idea or a short brief, any designs or competitor apps you like, and one decision-maker for weekly reviews. We handle the scope, design, build and store accounts setup with you.
Go native if the app leans on the camera, maps, Bluetooth or background work. Go cross-platform when you want the same app on both stores faster and on a tighter budget. We recommend one in discovery.
We guarantee the scope, the dated plan and store-ready builds; 92% of our projects ship on or before the agreed date. Installs and revenue depend on the market, so we track them openly after launch.
A large or local agency offers in-person meetings at big-agency rates. A freelancer is cheaper but is one person with no QA or backup. Seoily gives you a senior in-house team with PM and QA, hours that overlap your workday and fixed quotes, at roughly a third to half of typical agency cost.
Crash monitoring, OS and SDK updates and monthly releases on a support plan. We can also run store optimization, install campaigns and call center support.
Talk to the team
Have an app idea? Talk to the team that runs one.
Chat with our assistant, message the team on WhatsApp, or book a call. Whichever you pick, a real strategist follows up within one working day.
SSeoily assistantAI assistant · a real person can take over anytime
Hi! I’m Seoily’s assistant. Want results like your app’s? Pick a question below or type your own.
Services / App developmentApp development company · iOS, Android, Flutter
App developmentthat users keep
Apps people keep, built by a team that runs its own.
✓App Store reviewApproved in 1 day
⚡Cold start1.2s on a mid-range phone
We design, build and launch iOS, Android and Flutter apps for startups and growing businesses, at roughly a third to half of typical agency rates. Our own app, Mobile Mandir, runs on the same process.
30+ in-house specialists design, dev, QA and growth
12 wksaverage MVP build
92%projects shipped on time
200+projects delivered
In short
What does an app development company do?
An app development company plans, designs, builds and launches mobile apps for iOS and Android, then maintains them after release.
It brings product managers, designers, developers and testers under one roof, so founders and businesses can turn an idea into a working app without hiring a full in-house team.
At Seoily, one senior in-house team takes your app from discovery to App Store launch and beyond. We build in Flutter, React Native or native Swift and Kotlin, demo progress every two weeks on a call in your time zone, and support the app after launch. We run our own app, Mobile Mandir, the same way.
Typical costFrom $5,300 per app
Timeline4–8 weeks template, 10–14 weeks MVP
TeamPM, designer, developers, QA
DeliverablesiOS and Android apps, admin panel, source code
Best forBusinesses with a defined scope and roadmap
Timeline4–9 months
TeamPM, 2 designers, 3–5 developers, QA
✓Native or cross-platform
✓Customer, partner and admin apps
✓Integrations with your systems
✓Launch plus 3 months of support
Best forApps that are buggy, slow or abandoned
TimelineAudit in 1 week
TeamTech lead, 2 developers, QA
✓Code, security and performance audit
✓Fix plan with dates
✓Crash and rating recovery
✓Ongoing releases
Best forCompanies that want an offshore development team
TimelineMonthly, flexible
TeamDevelopers, designer and QA as needed
✓Your roadmap, our team
✓Two-week sprints with demos
✓Scale up or down monthly
✓Weekly calls in your time zone
Our work
Apps we’ve built and launched
Devotional · Seoily productA daily-pay insurance app for 10K+ Uber driver-partnersDrivers buy and manage a plan in a few taps. Our team also built the sales dashboard and runs the call center that sells and supports every policy.
Workforce · ClientAn instant-pay app that pays daily workers the same dayTimesheets come straight from Magnit and SAP, a manager approves the hours, an admin releases the money, and the worker is paid the same day.
Agriculture · ClientOur own devotional app with verified sevaPrayers, temple visits and seva booked from home, with video proof for every seva. We design, build, market and support it ourselves.
Travel · ClientThe vendor app behind every sevaVerified partners accept seva jobs, upload video proof and track earnings. Profiles are approved before the first assignment.
Most apps we build cost between $5,300 and $88,000. The price depends on the number of platforms, user roles, features and integrations, and whether you start from a proven template or a custom design.
Template appProven app flows with your brand, live in 4–8 weeksFrom $5,300per app✓iOS and Android from one codebase✓Your branding and content✓Admin panel included✓App Store and Google Play submission
MOST CHOSENCustom MVPFounders testing a new idea with real usersFrom $16,000per project✓Custom UX and UI design✓Login, Stripe payments and push alerts✓Admin panel to run it✓Launch plus 1 month of support
Full productMulti-app platforms with roles and integrationsCustomquote✓Customer, partner and admin apps✓Integrations with your systems✓Dedicated team in two-week sprints✓Launch plus 3 months of support
Indicative prices, excluding taxes. Fixed quote after a 20-minute call.
Compare
Seoily vs a large agency vs a freelancer
TeamSeoilySenior PM, designers, developers, QA in-houseFreelancer: One developer doing everythingLarge agency: Large team, juniors do the work
PriceSeoilyFixed quote, a third to half the costFreelancer: Low, but scope often slipsLarge agency: High hourly rates, long contracts
TimelineSeoilyDated plan, 92% on timeFreelancer: Depends on one personLarge agency: Slow approvals and handovers
After launchSeoilySupport plans and monthly releasesFreelancer: Often moves to the next jobLarge agency: Support at extra cost
Growth helpSeoilyASO, ads and call center in-houseFreelancer: Code onlyLarge agency: Separate teams and contracts
ProofSeoilyRuns its own live appFreelancer: Portfolio screenshotsLarge agency: Big logos, little detail
After launch
Launch is day one. We stay for the growth.
Most app agencies hand over the code and leave. Our marketing and support teams sit in the same office as our developers.
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FAQ
Questions founders ask us
It depends on platforms, features and integrations; the pricing table above shows typical ranges. After a 20-minute call and a short discovery, we send a fixed quote with a dated plan, so the price doesn’t move unless the scope does.
A template-based app takes 4–8 weeks, a custom MVP 10–14 weeks, and a large multi-platform product 4–18 months. Use the estimator above for a quick range.
Yes. We work with clients worldwide, schedule calls in your time zone, work hours that overlap your workday, and give you one account lead who answers within hours.
Through Slack or email day to day, a weekly video call in your time zone and a shared board that shows every task. You also get a new build on your phone every two weeks.
You do. We sign an NDA before discovery, and the source code, store accounts, design files and all IP are transferred to you.
Your idea or a short brief, any designs or competitor apps you like, and one decision-maker for weekly reviews. We handle the scope, design, build and store accounts setup with you.
Go native if the app leans on the camera, maps, Bluetooth or background work. Go cross-platform when you want the same app on both stores faster and on a tighter budget. We recommend one in discovery.
We guarantee the scope, the dated plan and store-ready builds; 92% of our projects ship on or before the agreed date. Installs and revenue depend on the market, so we track them openly after launch.
A large or local agency offers in-person meetings at big-agency rates. A freelancer is cheaper but is one person with no QA or backup. Seoily gives you a senior in-house team with PM and QA, hours that overlap your workday and fixed quotes, at roughly a third to half of typical agency cost.
Crash monitoring, OS and SDK updates and monthly releases on a support plan. We can also run store optimization, install campaigns and call center support.
