Trango Tech offers specialized iOS app development services, leveraging the latest Apple technologies to deliver highly functional apps. By harnessing the power of native Swift and SwiftUI, our iOS app developers build solutions for iPhone, iPad, Apple Watch, Apple TV, and Vision Pro.
Finding the right iOS app development services provider that actually delivers in the App Store is harder than you think. You need someone who subcontracts to anonymous freelancers, quotes low but overcharges you later, or hands you a codebase that fails Apple’s privacy review for a privacy manifest violation. Trango Tech has been providing native iOS development services since the App Store opened in 2008. We built for iPhone, iPad, Apple Watch, Apple TV, and Vision Pro in Swift 6 and Swift UI. We integrate Apple intelligence and foundation models on supported devices and maintain 100% privacy for every iOS app submitted in the last 18 months.
Trango Tech has been a native iOS mobile app development company since the App Store opened in 2008. We build for iPhone, iPad, Apple Watch, Apple TV, and Vision Pro in Swift 6 and SwiftUI.
Stay here, and you’ll get to know everything you should know before hiring a custom iOS app development company. Explore the real US cost range, a written SLA with response times, our true app store rejection rate, and an IP transfer downloadable clause before you sign in
Get a free estimate for your custom mobile solution by completing the quick 5-step process. We’ll email you a detailed cost PDF report with a step-by-step breakdown, a timeline, and an explanation of what's driving you up or down.
Pick the closest match. We'll fine-tune the estimate as you go.
iPhone is included by default. Each extra device adds a focused dev/QA stream.
Every checkbox maps to specific Apple frameworks and engineer hours.
Optional — skip this step if your app is standalone.
Free PDF with stage-by-stage breakdown, timeline, and what drives the number up or down. No sales calls unless you ask.
Our iOS app development services range from a fixed-price MVP to multi-device Apple ecosystem services, leveraging native Swift, Objective-C migration, SwiftUI, and the latest Apple frameworks.
We provide custom iPhone application development services to create scalable, custom mobile apps that offer an intuitive user experience, innovative features, and smooth interactions.
Our iPhone app development services involve the creation of customizable iPhone and iPad apps that reflect your brand’s mission & target audience.
Our iOS app developers create both dependent and independent Apple Watch apps integrated with in-app purchasing & automatic iOS updates.
We create native tvOS apps that enable you to deliver immersive, high-quality video content, games, and services directly to users’ TVs.
Our iOS development services also include developing apps for visionOS, Apple’s Spatial computing platform that combines digital content with the physical world.
We offer app modernization from Objective-C to Swift, from UIKit to SwiftUI, and from Core Data to Swift Data, enabling a painless migration of legacy iOS codebases.
We create interactive, high-performance entertainment applications specifically for Apple’s operating system, including iPhone, iPad, and Apple TV.
As a custom iOS app development company, we provide a 1-2 week paid audit of your existing iOS codebase, architecture, security, app store compliance, and CI/CD.
Most agencies just stop at iPhone, but we built across the full Apple ecosystem with a shared Swift UI core, where it makes sense, cutting the total budget by 30-40% compared to building each platform separately.
From iPhone SE to Pro Max. Dynamic Island, ProMotion, Always-On display.
Stage Manager, Apple Pencil, multitasking, and Mac Catalyst handoff.
Complications, Smart Stack, HealthKit, Workout API, independent cellular.
Focus engine, Top Shelf, TVML, Siri remote, multiplayer GameCenter.
Spatial volumes, Immersive Spaces, RealityKit, hand tracking, eye gaze.
Most agencies tell you what they can build — not what you should build. This 4-question wizard tells you whether native Swift/SwiftUI, React Native, or Flutter fits your project. The recommendation is based on engineering trade-offs, not on what we want to sell you.
Native wins when you need top performance, deep iOS hardware (LiDAR, ARKit, HealthKit, Vision), Apple Intelligence integration, watchOS/tvOS/visionOS support, or App Store-quality UX. Cross-platform wins on iOS+Android with one team, faster MVPs, and lower long-run TCO when you're not stack-locked.
The compliance, integrations, and Apple frameworks each vertical actually needs, not generic features bolted onto a template.
HealthKit, ResearchKit, video consults, e-prescriptions.
HIPAAApple Pay, biometric auth, real-time fraud detection.
PCI-DSS · SOC 2AR property previews, MLS integration, mortgage calculators.
CCPAApple Pay, AR product try-on, loyalty, push merchandising.
PCI-DSSLive GPS, route optimization, driver app, customer ETA.
DOT-ELDSSO, MDM, SAP/Oracle/Salesforce integrations, offline-first.
SOC 2 · ISO 27001School Manager, Classroom, Schoolwork, content protection.
FERPA · COPPAOffline blueprints, Vision Pro walk-throughs, daily reports.
OSHA-readyHLS, AVKit, FairPlay DRM, AirPlay, SharePlay sessions.
DRM-FairPlayReal-time matching, in-app payments, ratings, dispatch.
PCI-DSSLive messaging, group video, push, content moderation.
GDPR · ATTiCloud sync, Sign in with Apple, Mac Catalyst, Universal Apps.
SOC 2Apple Intelligence opened the Foundation Models API to third-party apps in 2025. visionOS reshaped what spatial software looks like. SwiftData replaced Core Data. We ship with these, not around them.
Apple opened on-device LLM access to third-party apps in 2025. We integrate Foundation Models, Core ML, Vision, Natural Language and App Intents — for free, private, offline AI on every supported device.
Native visionOS apps in SwiftUI + RealityKit + ARKit, or bring your existing iPad/iOS app to spatial with depth, gestures, and Immersive Spaces. Our team is on the Vision Pro Developer Kit programme.
If your app is still UIKit + Core Data + completion handlers, we modernize it. The 2025 stack is Swift 6 strict concurrency, SwiftUI 6, SwiftData with #Index and compound uniqueness, async/await everywhere, Combine for streams.
Native iOS apps support new iOS versions on launch day — that's the whole point of native. Our internal WWDC tracker has every client app updated and tested against the iOS beta cycle, so your app ships compatible the day Apple's release goes live.
Apple rejected 12% of App Store submissions in Q1 2025 for Privacy Manifest violations alone. That number gets worse if you fail App Tracking Transparency disclosure or HIG compliance. We screen for all of it before we submit — not after.
Every iOS app we ship comes with a complete Privacy Manifest declaring data types, API usage codes, and third-party SDK access; an ATT prompt with explicit third-party data recipient disclosure as required by the 2025 ATT updates; and a regulatory profile matched to your industry — HIPAA, PCI-DSS, SOC 2, GDPR, CCPA.
Declared data types, API codes, third-party SDK disclosure. Mandatory since May 2024.
Permission prompts with named third-party data recipients per 2025 update.
BAA-ready architecture, end-to-end encryption, audit logging.
Tokenization, Apple Pay, no PAN at rest. PCI-DSS Level 1 ready.
Access controls, audit logs, least-privilege by default.
Data export, deletion, consent management, regional data residency.
We follow an agile app development process. Most agencies have six stages. The seventh is what makes the difference between an app that launches and one that bounces in App Store review.
Business goals, user research, technical architecture, fixed-scope SOW. You leave discovery with a written roadmap you can take to any other team if we're not the right fit.
Wireframes, interactive prototypes, pixel-perfect Figma designs that follow Apple's Human Interface Guidelines — navigation, typography, touch targets, accessibility, and Dynamic Type.
Swift module design, data layer (SwiftData / Core Data), API contracts, third-party SDK selection, security review, observability, and crash reporting plan.
Two-week sprints in Swift 6 / SwiftUI / SwiftData with weekly TestFlight builds. You get a named iOS engineer + PM, daily Slack, and access to the Git repo from day one.
Functional, performance, security, and VoiceOver testing across the iPhone / iPad / Watch / TV matrix. Accessibility audit. Memory leak hunt. Network resilience tests.
Now comes the app store deployment services, Privacy Manifest audit, App Tracking Transparency check, HIG compliance review, IAP/StoreKit validation, and full coverage of the App Store Review Guidelines. We catch rejection causes before Apple does.
Submission, App Store Optimization (keywords, title, subtitle, screenshots, preview video, localization), launch monitoring, and a written SLA: P1 < 4 hrs, P2 < 1 business day, P3 < 3 days.
Fixed-price MVP for defined scope. Time & materials for evolving products. Dedicated iOS team for long-term roadmaps. Staff augmentation to extend in-house.
Defined feature set, defined timeline, defined cost. Best for first apps and validated MVPs.
For evolving scope and continuous discovery. Pay only for hours worked, with weekly burn-down reports.
A full pod of iOS engineers, designers, QA, and PM reporting to you for the long run.
Hire our iOS app developers to augment your in-house team, working with your standups and Git.
There’re are no hidden charges for our iOS app development services. Every level includes separate phases: discovery, design, native iOS development, App Store submission, and post-launch support.
Founders verifying a single basic flow with up to 10 screens.
Usually, an e-commerce, fintech, or SAAS app. Custom UI Payments, real-time, third-party APIs
Includes development for multi-device, AR, Apple intelligence, deep enterprise integration, and regulated industries.
The fixed-price quote of your iOS app development solutions will depend on the following numbers, which provide a clear breakdown by features. Senior iOS app developers rate: $120-$220/hour. Estimates assume native Swift-based iOS development. Actual hours taken by each feature depend on edge cases, business logic, and integration depth. We send a fixed price quote within 48 hours of discovery.
| iOS Feature | Native iOS hours | Backend hours | Design hours |
|---|---|---|---|
| Authentication + profile (Sign in with Apple, email, social) | 10–70 | 12–40 | 8–20 |
| Payments (Stripe, Apple Pay, IAP, subscriptions) | 20–200 | 30–120 | 12–30 |
| Push notifications + APNs (rich, actionable) | 8–20 | 14–30 | 3–8 |
| Geolocation + maps (MapKit, route, geofence) | 10–150 | 16–80 | 10–30 |
| Real-time chat (1:1, group, attachments) | 40–120 | 60–180 | 18–40 |
| Social login (Google, Facebook, Apple) | 10–30 | 8–20 | 2–6 |
| HealthKit / Workout / sensor integration | 30–120 | 10–40 | 12–30 |
| ARKit + RealityKit experience | 60–240 | 10–60 | 40–120 |
| Apple Intelligence / Foundation Models integration | 20–80 | 0–30 | 6–20 |
| Vision Pro / visionOS adaptation | 80–320 | 10–40 | 60–200 |
Estimates assume native Swift/SwiftUI. Actual hours depend on edge cases, business logic and integration depth — we send a fixed-price quote within 48 hours of discovery.
We don’t use Cordova or 2019 frameworks. As a swift app development company, we utilize Modern Swift, modern SwiftUI, and modern tooling with Objective-C and UIKit available when migrating legacy apps.
Each one has a proof point on this page. None of these are claims; they’re contractual.
As a trusted iOS app development firm, we’ve been creating iOS apps since the App Store launched in 2008. 500+ shipped iOS apps Already shipped 500 high-performance iOS applications across 14 industries, no other in our tier can say that honestly.
IP transfer is in our agreement. We’ll give you access to the Git repository, signing certificates, and Apple Developer at every sprint close. Sample IP clause downloadable, no email gate. Sample IP clause downloadable — no email gate.
Comes under stage 6 of our process. It includes privacy manifest, App Tracking Transparency (ATT), Human Interface Guidelines, IAP/StoreKit, and full review guideline coverage. 96% first-submit acceptance. If Apple rejects the app, we fix it for free. 96% first-submit acceptance. If Apple rejects an app we submitted, we fix it free.
Our Native iOS apps support new iOS versions on launch day. We test every app of our client with our WWDC tracker against beta cycles, so users dont have to face the broken apps.
Every retainer comes with a written SLA: P1 < 4 hrs, P2 < 1 business day, P3 < 3 business days. Our iOS engineer and PM will genuinely be there to help; it's not just a statement. P1 < 4 hrs, P2 < 1 business day, P3 < 3 business days. Named iOS engineer + PM. Not a generic "we'll be there."
Our headquarters is located in Houston, with offices in Los Angeles, New York, Miami, and Charlotte. Our US-based PM and Apple app developers are behind our every engagement. Our Global Delivery scales the team without scaling the time-zone gap. Los Angeles, New York, Miami and Charlotte. US-based PM and iOS Practice Lead on every engagement. Global delivery scales the team without scaling the time-zone gap.
100% privacy manifest pass-through rate on every iOS app submitted in the past 18 months. We specialize in regulated industries, including HIPAA, PCI-DSS, SOC 2, and GDPR, where compliance isn’t optional.
If we don’t deliver the results we agreed on in the statement of work (SOW), you’ll get your money back. We’ve never had to honor it, but it’s written in every contract.
Here are nine high performance iOS applications from our portfolio. Just click on a card and read the full case study on Trango Tech.com. The design process, technical decisions, and results are clearly mentioned.
iOS app that lets construction professionals find jobs, post bids, and connect with contractors faster.
Courier delivery iOS app with live GPS tracking, dynamic dispatch, and seamless customer ETA notifications.
iOS platform for nightlife discovery, VIP reservations, loyalty rewards, and social engagement around live events.
HIPAA-ready telemedicine platform with 2,500+ doctors, HD video consults, e-prescriptions, and HealthKit integration.
Full retail digital transformation: iOS app, Flutter, HRMS, WMS, AI-powered call center.
On-demand cleaning service iOS app with real-time matching, in-app payments, dispatch and dynamic ratings.
AI-powered matchmaking iOS app digitizing the matchmaking process with smart matching and intuitive profile browsing.
Cross-platform iOS app strengthening the bond between churches and musicians through seamless event booking and discovery.
iOS app and Flutter mobile app revolutionizing marine transportation services with intuitive scheduling and tracking.
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They developed an iOS telemedicine app compliant with HIPAA regulations in just 16 weeks, with ATT and privacy manifest. Got Apple's approval for the first submission. They have delivered seven updates with their team since then.
After two failures with different agencies, Trango tech rebuilt our iOS retail app from scratch in Swift/SwiftUI. The app store ranked us in the top 50 in our category in week three after launch.
Need a local iOS app development company for your next project? We have a team of US-based PMs and iOS engineers in every US city listed, with a Houston headquarters that has been open since 2008.
Share your idea with us, and we’ll send a fixed-price quote, a weekly timeline, and a sample IP transfer clause for our iOS app development services within 48 hours. We also offer a mutual NDA upon request, at no fee.
Pulled from real Reddit and Quora threads on iOS app development companies in the USA.
Hours per feature, US vs offshore rates, hidden costs.
Read guidePerformance, hiring, TCO, and Apple ecosystem access compared.
Read articlePrivacy Manifest, ATT, IAP, HIG — what we screen before submitting.
Read playbookWhat changed in 2025 and how to ship on-device AI features.
Read deep-diveDriving Change
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