All Case Studies
Proof in every iOS app we submit
Every Dcrayon iOS build rests on six pillars: App Store metrics you can verify, Swift you can audit, and plain numbers your finance team can read.
One outcome, whole build
Scoped and tracked Every iOS build is measured against one number you name on the scoping call, whether that is paid installs, crash-free sessions, or in-app purchases. The engineer on your account reports it each month, not a wall of charts.
Senior engineer writes the Swift
Kickoff to release The senior engineer who scopes your iPhone app writes the Swift and uploads the App Store build. You are not funding someone's first project in Xcode.
Current Swift, since 2016
Dcrayon AI toolkit Every build ships in current Swift and SwiftUI, with async/await and SwiftData where they fit, so the app runs well on the latest iPhone and iPad.
Month-to-month after cycle one
No yearly tie-in Work runs month to month once the first cycle closes. We keep the account by shipping updates that lift ratings and retention, not by locking you in.
Backend and Android in reach
Room to extend Your iOS app connects to a backend API, an Android build, or a web admin when you need it. Nearby mobile and software work stays with the same team.
Reports finance can read
Weekly call, monthly summary A weekly call with your developer covers the sprint and TestFlight feedback. A monthly summary maps App Store metrics to the goal, in plain language.
HOW WE WORK
How Dcrayon works with the brands we partner with
A short film on how we work: the people you deal with, how we report, and the results we hold ourselves to.
What is iOS App Development?
iOS app development means building native iPhone and iPad software in Swift and SwiftUI. The three cards below explain what it covers, how our engineering differs, and how we measure each release.
Step 1: What iOS app development covers
Definition A native iOS app runs directly on iPhone and iPad, written in Swift and SwiftUI rather than wrapped web pages. We build it as a maintained product: versioned in Xcode, shipped through App Store Connect, and pointed at one goal you set.
Step 2: Why a Dcrayon iPhone app is different
Difference Since 2016 we have shipped apps that hold up on real devices, weak networks, and strict App Store review. We write testable Swift, watch memory and jank in Instruments, and stage each release through TestFlight before it reaches the store.
Step 3: How we measure your app
Measurement We open with an audit of your current build or spec, then hold a short call each week. A monthly summary your finance team can read tracks the goal, and either side can close out cleanly after the first cycle.
Technical signals we build into every iOS app
Default work on every Dcrayon iOS app build
Each item below ties to something your app depends on to earn and keep users: launch speed, crash-free rate, App Store rating, and day-30 retention. Built and reviewed by the iOS engineer on your account.
One outcome per build
Each build tracks one outcome you choose, such as installs, in-app purchase revenue, or day-30 retention.
Your developer reports that number monthly.
Dcrayon AI toolkit applied
Our in-house toolkit flags Swift smells and likely crashes early.
A senior engineer reviews every pull request before it reaches a TestFlight build.
Speed and memory tuning
We profile with Instruments for leaks, allocations, and frame drops, so the app stays smooth on older iPhones.
XCTest coverage is included, never a paid extra.
Growth Intelligence baseline
A 150-point check runs at the start, across crash-free rate, launch time, App Store guideline fit, and code quality.
It sets the baseline we build from.
Weekly call plus monthly readout
A weekly call on the sprint and TestFlight feedback, plus a monthly summary linking App Store Connect metrics to the outcome.
Reporting terms sit in the agreement.
Exit open each cycle
Work runs month to month once the first cycle ends.
Either side can close the agreement at a cycle boundary. We keep the account by shipping releases that hold up.
Three Dcrayon tools behind every iOS app build
The Score, the Sequence, and the build toolkit: a health check, a written cycle plan, and the kit we run on every iPhone and iPad project.
Growth Intelligence (Mobile and Software axis)
A 150-point health check. The mobile axis covers crash rate, launch speed, App Store fit, and code quality inside every project. Free on the proposal call.
Dcrayon Growth Engine (iOS app sequencing)
A written cycle plan that ties each sprint back to one outcome. Shaped over years of shipping iPhone and iPad apps through App Store review.
Dcrayon AI (builder toolkit)
Our in-house toolkit runs across projects to flag Swift issues early, suggest fixes, and keep the app fast and the code readable.
How Dcrayon builds your iOS app
Three steps that build up across cycles.
Step 1: Score
A free Growth Intelligence readout on your app, mapped to the one business outcome you want to reach.
Step 2: Plan
A written cycle plan tied to one outcome you pick. A senior engineer on the build from the first sprint. Exit stays open, no yearly tie-in.
Step 3: Grow
A weekly call and a plain monthly readout. Each cycle builds on the last: a steady architecture in cycle one supports the features in cycle two.
Get my Dcrayon iOS App Development Score
A free health check on your app plus a written cycle plan to close the gaps it finds.
+187%
Median revenue lift, year 1
Other Mobile & Software services
iOS App Development sits inside the Mobile & Software category. Most clients expand into adjacent leaves as the program compounds.
Real client work, with the receipts
200%
Improvement in conversion performance
Proven Water Industries
Proven's growth on Amazon over the engagementDcrayon's work on Proven's Amazon account has run as a long-term growth programme rather...
Keratine Professional
What is in place on Keratine Professional's accountOn Amazon.in today, the brand's lead listings name the product type, the hair concern...
3,400%
Sales growth on Amazon India
GetSetNova
Sales up 3,400% on Amazon IndiaOver the engagement, GetSetNova's sales on Amazon India are up 3,400%, and the brand holds Amazon Best...
McCormick & Company
What changed on McCormick's front endThe front end now loads non-essential scripts after the main content, runs third-party tags through...
Roundglass
What changed for Roundglass's HR team, IT and new employeesAccount creation, group membership and licence assignment now follow the...
GRYT Health Labs
What GRYT shoppers can do on the storeShoppers can check the brand's licence and ownership details, compare single units with packs of...
Daddy of Tastes
What the Daddy of Tastes kitchens and riders work withCustomers can order from the full menu, pin their exact location, pay through...
Instacertify
What Instacertify's visitors could doVisitors could search for a certification from the first screen, see two clear next steps, and move...
Northern Tile Distributors
The storefront delivers a clean shopping experience on both desktop and mobile. Page load times improved significantly, the add-to-cart rate...
RAA Logistics
What RAA's customers and team have nowProspective customers can find the exact service they need, read what it covers, see who runs the...
What app owners say about working with Dcrayon
A senior developer on every account. Weekly updates. No offshore handoffs.
“Dcrayon provided website development and design services for our regulatory compliance and taxation company. On-time delivery was commendable. The team was supportive, provided timely deliverables, and communicated with us through virtual meetings throughout the engagement.”
“The process was smooth and professional. Dcrayon delivered digital marketing for our beauty brand and the work landed measurable outcomes. 35% traffic increase, 45% social growth, and first-page Google rankings, with responsive management throughout.”
“They ensure all campaigns go live as scheduled without delays. The e-commerce and digital marketing support raised engagement, website traffic, and sales, and the project oversight stayed organised and responsive across the engagement.”
Chief Executive Officer, Nirwana Jewellers Private Limited
Verified on Clutch“Dcrayon made everything right. We commissioned a website design + development build from scratch. it shipped on schedule with responsive adjustments through the review cycles and met the Google feature compatibility we needed.”
“Their attention to detail and compliance-focused approach helps build a stronger and more sustainable business. Initially they ask for documentation many sellers find difficult to provide. that is exactly what sets them apart. They now also offer USA seller account management. Loved the service. Bestseller in 3 category.”
“Dcrayon took our Amazon account from steady but flat to explosive growth: 180 percent more revenue, from Rs 1.82 crore to Rs 5.10 crore.”
Keratine Professional
Salon-grade Hair Care on Amazon
WHY DCRAYON
Why a Dcrayon iOS app holds up
Stand out in a crowded App Store
A dependable iPhone app takes years of Swift and App Store experience to get right. Dcrayon carries that engineering load so you can stay focused on running the business.
Fair monthly pricing
A flat monthly fee tied to build scope, not device count or ad spend. Your quote follows the iOS app Score.
Human-led, AI-assisted
A senior iOS engineer plus the Dcrayon AI toolkit on every account. The toolkit suggests Swift fixes; your engineer reviews and ships them.
Clear, honest reports
A weekly call plus a monthly plain-English Score readout. One outcome anchors the whole report.
No long contracts
Work runs month to month once the first cycle closes. Either side can exit at a cycle boundary.
Full scope under one roof
Your iPhone app plus the backend, Android build, or web admin it needs, under one team. No handoffs between vendors.
Cross-industry experience
500+ projects delivered across India, the US, UK, and UAE. Patterns carry over while each build fits its own industry.
The iOS app Score is free. The 90-day plan is yours to keep.
Across the 485+ brands we have served, brands running a slow or crash-prone iOS app tend to miss between Rs 5L and Rs 28L over six months. Book the scoping call to size yours.
Free Dcrayon iOS app Score readout on your build
Written cycle plan tied to one business outcome
Exit stays open in every agreement, no yearly tie-in
A senior iOS engineer on every account; slots are limited
Question & Answer
Frequently asked questions
Real questions app owners ask Dcrayon before signing on.
You do not wait until launch to see the app. We share running TestFlight builds through the project, so you test real screens on your own iPhone at each milestone and judge the work as it takes shape.
Many agencies bill for hours logged. As an iOS app development company since 2016, we ship native Swift and SwiftUI, keep the crash-free rate high, pass App Store review cleanly, and tie each release to the number you care about.
iOS app retainers usually run Rs 1.8L to Rs 5L per month for a single-region build. Larger or enterprise apps go above Rs 7L.
No. Work runs month to month once the first cycle closes, and either side can exit at a cycle boundary.
iOS app development is one of several Dcrayon Mobile and Software services. Many clients start with an iPhone app, then add an Android or backend build alongside it. See the full Mobile and Software overview at /services/mobile-software.
Get my Dcrayon iOS App Development Score
A free health check on your app plus a written cycle build plan.
Ready to Grow Your Business?
Get a free consultation and custom marketing strategy from our expert team.
Bring the numbers you already have. We will read them against what we see across 500-plus campaigns and show you where the real opportunity sits.
If we are not the right fit for the work, we will tell you that too.