mock object testing framework that can be used to create stubs in iOS apps.
Best Tools For iOS
Browse 11 + iOS Tools

OC Mock
Detox
Gray box end-to-end testing and automation framework for mobile apps
KIF
Keep It Functional - An iOS Functional Testing Framework

Calabash
Calabash is a BDD framework for iOS and Android

TestProject
TestProject is the world's first 100% free test automation platform for Web, Android, iOS and API testing, trusted by over 150,000 users in the testing community.
XCTest
Apple’s official testing framework for unit tests.

EarlGrey
🍵 iOS UI Automation Test Framework

Nexial
Test automation for everyone - test automation platform with support for web (selenium), desktop, database, api and much more. Coding not required ;-)

AltUnity Tester
UI Test Automation for Unity applications

Hammer
iOS touch synthesis library

Appium
Mobile application automation framework