Cracking the iOS Interview

This page summarizes the projects mentioned and recommended in the original post on

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  • Alamofire

    Elegant HTTP Networking in Swift

  • Alamofire - Elegant HTTP networking

  • Kingfisher

    A lightweight, pure-Swift library for downloading and caching images from the web.

  • Kingfisher - Download and cache images

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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  • SnapKit

    A Swift Autolayout DSL for iOS & OS X

  • SnapKit - Autolayout DSL for iOS & OS X

  • Realm

    Realm is a mobile database: a replacement for Core Data & SQLite

  • Realm - Mobile database

  • Lottie

    An iOS library to natively render After Effects vector animations

  • Lottie - After Effects vector animations

  • SkeletonView

    ☠️ An elegant way to show users that something is happening and also prepare them to which contents they are awaiting

  • SkeletonView - Fancy loading views

  • Hero

    Elegant transition library for iOS & tvOS

  • Hero - Elegant transition

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

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  • public-apis

    A collective list of free APIs

  • Practice challenges: Public APIs, Mobile design UI inspiration.

  • iOS-Interview-Questions

    A curated list of iOS interview questions and answers

  • Interview questions: this, this, this, this, and this.


    Discontinued A journal of the overlooked bits in Objective-C, Swift, and Cocoa.

  • Tutorial sites:,,,

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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