Swift, SwiftUI and the App Store
iOS app development that earns the home screen.
Native Swift and SwiftUI for iPhone and iPad, designed around the first session and tested on the oldest device you still support. Submitted so review passes the first time.
30-min call with a senior lead · Reply within 1 business day · NDA on request
Projects shipped
Years of team experience
Countries served
Client score
01The approach
Our approach to iOS app development.
iOS looks like the easy platform.
What changes on the phone
- New users reach something useful fast90s to value
- They come back on day thirty+41% retention
- A cold start that feels instant-1.9s cold start
- It keeps working in lifts and dead zonesOffline-first
- Store review passed first time, handled here100% pass rate
- The same senior engineers, start to finish0 swaps
Read the full approach
One vendor, a handful of screen sizes, users who spend more. Then the first submission comes back rejected over a permission string nobody wrote, and the launch slips two weeks.
We treat App Store review as part of the build rather than a gate at the end. Privacy manifests, tracking permission and account deletion are decided in week one, because each of them can force a rework if they arrive late. The same goes for the platform decision itself: we scope native Swift and React Native side by side and let the requirements settle it, which is why roughly a third of the apps we ship are not native at all.
The other half of the job is the first session. Almost nobody deletes an app because of a bug. They delete it because the first ninety seconds gave them nothing worth keeping.
What we settle before writing Swift
- Oldest iOS version you will still support
- Privacy manifest and tracking permission
- Account deletion, which review now requires
- Native Swift or React Native, scoped both ways
- Who owns the Apple Developer account
02Services
Native, hybrid or iPad. What the app has to do on the device decides which of these is right.
iOS app development services we offer.
| Native iOS apps Swift and SwiftUI against the current SDK. The right answer when the app leans on the camera, background location, HealthKit or on-device processing. | Hybrid iOS apps One React Native or Flutter codebase for iPhone and Android, with Swift written only where the hardware demands it. Cheaper to run when both stores need the same product. | iPad and universal apps One build that behaves like an iPad app rather than a stretched phone screen. Split views, keyboard shortcuts, pointer support and multitasking. | |
|---|---|---|---|
| Typical timeline | 12–16 weeks | 10–14 weeks | 10–14 weeks |
| Next stepQuoted per project after a free consultation. | Discuss this route | Explore hybrid app development | Discuss this route |
Native iOS apps
Swift and SwiftUI against the current SDK. The right answer when the app leans on the camera, background location, HealthKit or on-device processing.
- Timeline
- 12–16 weeks
Hybrid iOS apps
One React Native or Flutter codebase for iPhone and Android, with Swift written only where the hardware demands it. Cheaper to run when both stores need the same product.
- Timeline
- 10–14 weeks
iPad and universal apps
One build that behaves like an iPad app rather than a stretched phone screen. Split views, keyboard shortcuts, pointer support and multitasking.
- Timeline
- 10–14 weeks
03Process
Our iOS app development process.
Five stages, and your team installs builds through TestFlight from week five.
01ShapeWeek 1–2
Scope cut, platform decided. Interviews, a competitive read and one hard prioritisation session. Native Swift and React Native are both scoped and costed, so the platform gets decided on requirements rather than preference.
02DesignWeek 2–4
The first ninety seconds, drawn first. Onboarding and the first session before anything else, because that is where installs are lost. Screens follow Apple's Human Interface Guidelines, so the app feels like an iPhone app rather than a website in a wrapper.
03BuildWeek 4–12
Swift, in two-week slices. Working builds every fortnight, each one installable on your own phone. Privacy manifest, tracking permission and account deletion go in as they are built rather than being bolted on before submission.
04SubmitWeek 12–14
Through review the first time. Store listing, screenshots at every required size, the privacy questionnaire and the review notes that stop an avoidable rejection. We submit, we answer review, and we do not hand you a rejection to interpret.
05WatchPost-launch
Two weeks of cover, then your call. Fourteen days of post-launch cover included: crash triage, review responses and the first data on where people drop out. A retainer afterwards is optional, and plenty of clients do not take one.
Stage 02 · Design
04Included
What we deliver.
01Review passed on the first submission
Privacy strings, the privacy manifest, tracking permission and account deletion are handled during the build, not discovered at submission.
02Time to first value, specified
How fast a new user reaches something worth having. Written into the spec with a number against it, then measured.
03Tested on the oldest device you support
On real hardware, not just the simulator. An iPhone that is four years old is still most of somebody's install base.
04TestFlight from week five
Your team installs builds on their own phones while there is still time for the feedback to change something.
05Your Apple Developer account
The app is published under your organisation, not ours. If we part ways, nothing about the listing has to move.
06Swift you can hand to anyone
Reviewed, documented and conventional. The next developer should not need us to explain the architecture.
05The work
iPhone and iPad work, described honestly. The published examples are in the portfolio.
What we build on iOS.
iPhone and iPad work, end to end.
Consumer apps, internal tools, and the backends underneath them.
- Native Swift and SwiftUI apps
- iPad and universal builds
- React Native with native iOS modules
- APIs, integrations and data pipelines
Much of our app work sits under an NDA. Everything in the portfolio was built by the same engineers and is live right now, go and prod it.
06Why Syscodes
What clients say after comparing us with larger app agencies.
Why teams pick us for iOS.
to first value
We design the first session
Time to first value is a spec item with a number against it. That is where installs are lost, long before anyone finds a bug.
review items settled
Review is part of the build
Privacy manifest, tracking permission and account deletion are decided in week one. Each of them can force a rework if it arrives at submission instead.
routes always costed
We will talk you out of native
Native Swift is not always right. We scope both routes and cost them, and a third of the apps we ship turn out not to be native at all.
devices, not just simulators
Tested on real, older hardware
On the oldest iPhone you still support, not only the simulator on a new Mac. A four-year-old device is still most of somebody's install base.
years of team experience
Senior engineers, no bench
The person in your scoping call writes the Swift. Nothing is handed down to someone you have never spoken to.
ownership from day one
The account stays yours
Published under your Apple Developer account with the code in your repository. Leaving us costs you nothing but the notice period.
07Clients
130+ brands across 20+ countries, from pre-seed founders to national operators.
Teams whose apps we ship.
“I would absolutely hire Syscodes again. Their Shopify expertise, clear communication, and reliability made the entire project seamless. They brought valuable ideas and recommendations that genuinely improved the final result. Professional, responsive, and highly skilled, I couldn’t recommend them more highly.”
conversion rate
“Great experience working with Syscodes on our CRO-focused website redesign. They understood our goals, improved the user flow, and delivered a better design. Communication was smooth, deadlines were met, and the whole process was very professional. Would definitely work with them again.”
sales
Not sure where to start?
Ask us anything before committing to a call. Most questions get a real answer within a few hours.
or WhatsApp +91 70034 16634
9.9/10 client score · 150+ projects · 100% on time
08Engagements
What an iOS app costs depends on its scope, not on a price list. Every engagement is scoped individually after a free consultation, and the written proposal carries the number.
What iOS app development costs, and what shapes it.
Engagement
iPhone MVP
- One defined v1, iPhone only
- Swift or React Native, costed both ways
- Submission handled by us
- Analytics wired before launch
Most chosen
Native iOS build
- Swift and SwiftUI
- iPhone and iPad in one codebase
- Privacy manifest and permissions
- Store review handled
Engagement
iOS and Android together
- One React Native codebase
- Native Swift where the hardware needs it
- Both stores, one release train
- Cheaper to run than two native apps
09FAQ
Frequently asked questions.
Scope, cost, the platform decision and App Store review.
Still unsure?
Ask us anything before committing to a call. Most questions get a real answer within a few hours.
hello@syscodes.in+91 70034 16634
Book a 30-min call
What does iOS app development cost in India?
There is no price list, because the number is set by scope rather than by platform. A single-purpose iPhone MVP and a native app with offline sync, background location and a backend behind it are different projects by an order of magnitude. We scope every engagement after a free consultation and put the figure in a written proposal, along with what would move it.
How long does it take to build an iOS app?
Twelve to sixteen weeks is typical for a native Swift build, and ten to fourteen for React Native. Your team installs the first TestFlight build in week five, so you are using the thing long before it ships. App Store review itself usually adds one to two weeks.
Should we build native Swift or use React Native?
It depends on what the app asks of the phone. Camera work, background location, HealthKit, on-device processing and heavy animation point to native Swift. A product that is mostly screens, forms and data, and that needs Android too, is usually better served by one React Native codebase with Swift written only where the hardware demands it. We scope and cost both routes before you decide, and roughly a third of the apps we ship are not native.
Will our app pass App Store review the first time?
That is what we plan for, and we handle the submission ourselves rather than handing you a rejection to interpret. The items that cause avoidable rejections are settled in week one: the privacy manifest, tracking permission, account deletion, permission strings that explain themselves, and a demo account for the reviewer.
Do you build for iPad as well as iPhone?
Yes, and properly. An iPad build is not a stretched phone screen: it means split views, keyboard shortcuts, pointer support and multitasking. Whether it is worth doing is a scoping question, and for a lot of consumer apps the honest answer is that it is not.
Who owns the code and the Apple Developer account?
You do, both, from the first commit. The app is published under your organisation's Apple Developer account rather than ours, and the repository is yours. If you leave us, nothing about the listing has to move and no transfer is needed.
Which iOS versions will the app support?
We agree the oldest version in week one, and it is a business decision rather than a technical one. Supporting one more version back costs testing time and constrains which APIs we can use, so it is worth checking your own analytics before deciding rather than defaulting to the widest possible range.
What happens after the app is live?
Fourteen days of cover is included: crash triage, responses to store reviews, and the first read on where new users drop out. A retainer after that is optional and plenty of clients do not take one. If you do, it is the same engineers, not a support desk.
Where are you based, and can you work with us outside Kolkata?
Do you work with clients outside India?
Yes. We have delivered in 20+ countries across five continents, and we commit to four guaranteed overlap hours with US Eastern (18:30–22:30 IST), with a full overlap for the UK and Europe. The names are in the contract.
10Start a project
Let’s scope your iOS app.
Tell us who the app is for and what it has to do on the device. Written proposal inside one business day.
- Within 1 business dayWe read it properly and reply with real questions, not a templated brochure.
- A 30-minute scoping callFree, no obligation. We tell you honestly if we are the wrong fit.
- A written proposalScope, timeline, deliverables and the success metric, all on one page.
You'll hear back from a senior lead, never a bot.