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Kendall Gelner

Senior iOS Engineer

Kendall Gelner is a Senior iOS Engineer at Fieldwire. Previous, he was the founding iOS Architect at Nami ML. He is well regarded in the iOS development community for his technical knowledge and platform experience going back to the App Store launch. The last SDK Kendall was responsible for shipped inside of some of the most widely installed apps, reaching more than 200 million devices.

9 posts

5 min read

The App Store Rejected My App! Now What?

So your app was rejected. App Store rejections are common but are usually simple to resolve. Learn about typical rejection reasons, including those relating auto-renewable subscriptions and IAPs.

app-store-policy Read
5 min read

Designing a Mobile SDK

Learn best practices from our experience building a mobile SDK, including how to prioritize the end user customer experience.

mobile-subscriptions Read
5 min read

In-App Purchases and StoreKit in iOS 14 and Xcode 12

The Xcode simulators for iOS 14 work differently than iOS 13 and earlier. We step you through how to get IAP purchase testing working in the iOS 14 simulators.

mobile-subscriptions Read
5 min read

What’s New with In-App Purchases? WWDC20 Updates

Apple announced a lot of changes to subscriptions and IAP in iOS 14 at WWDC this year. Our summary has you covered on the most important changes.

mobile-subscriptions Read
5 min read

Allow your Fans to ‘Give Thanks’ by adding a Tip Jar to Your App

Tip jars are an easy way to start generating revenue from users that love your app. We step through the entire process of adding a tip jar to an iOS app.

mobile-subscriptions Read
5 min read

What’s New with In-App Purchases in iOS 15 - WWDC 21

iOS 15 introduces tons of new subscription and IAP capabilties including refunds, customer support, StoreKit 2, new server APIs and server notifications, and more.

mobile-subscriptions Read
5 min read

How to add in-app purchases in SwiftUI with Store Kit 2: A Comprehensive Guide

Learn how to add in-app purchases in SwiftUI using StoreKit 2. Boost your app's revenue with seamless in-app purchase integration in SwiftUI.

mobile-subscriptions Read
5 min read

Maximize iOS Testing Coverage: Unit Test vs. UI Test

Maximize your iOS app testing coverage by applying both Unit Test and UI Test. Learn in what situations to use each testing types provided by XCTest

mobile-subscriptions Read
5 min read

What Every iOS Developer Should Know About App Submission

Development is complete, bugs squashed, and the code is clean. Here's what you need to know before submitting an app to the App Store for review.

mobile-subscriptions Read

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