Best A/b Testing Apps &amp; Games

Sample size & significance

4.9😊(47K ratings)

FreeAdsIn-App Purchases

CDL Test Prep 2026 Class A B screenshot 1

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Prepare for your Commercial Driver's License (CDL) exam with a comprehensive study app. It offers practice questions, realistic simulators, and detailed explanations for all endorsements and states. Study efficiently with adaptive learning and offline access to pass your test on the first try.

What We Love

🚀 Excellent study material
💯 Passed tests on first try
📚 Accurate representation of real exam
🎯 Helped pass all endorsements
🏆 Best CDL prep app
🤯 Didn't need to read manual

Room to Improve

💸 Too many ads
🤖 Issues with updated app version
🔍 Unnecessary/irrelevant questions

Testify - A/B testing tool by Rowena Ricalde

Perform everyday experiments

Strong Contender

🔧 Utilities

0.0(0 ratings)

FreeIn-App Purchases

Saccade: A/B Test-by-Eye by MARC ERFANI HOAG

A/B Testing. With Your Eyes.

Worth Considering

🔧 Utilities

5.0(1 ratings)

Free

This app uses your iPhone's TrueDepth camera to track your gaze and determine unconscious preferences between visual variants. Upload images, look at pairs, and receive instant ranked results based on where your eyes linger.

More A/b Testing apps to explore

A/B Testing Calculator

Test zur grammatik A1-A2-B1-B2

💼 Business

(0)

Lernen Deutsch Grammatik ABC

Free grammar exercisesLevels A1-C1Animated explanations

This app offers free German grammar exercises for levels A1 through C1. It provides animated explanations, overviews of grammar topics, and practice tests aligned with common European language frameworks. Ideal for learners seeking to improve their German grammar and vocabulary.

CDL Practice Test: Class A B C

(1)

free

DMV permit & knowledge exam

2,587 practice questionsExplanations for every answer15 full topics covered

Prepare for your Commercial Driver's License knowledge test with a comprehensive study tool. It offers thousands of practice questions with detailed explanations, personalized study plans, and progress tracking to help you pass on your first attempt.

(1)

German test A1 A2 B1 like exam

Learn German language easy!

Real-world scenario testsGrammar exercises by level (A1, A2, B1)Sounded exercises for pronunciation

Practice German language skills with tests based on real-world scenarios. Improve grammar, vocabulary, and pronunciation through exercises divided by proficiency levels (A1, A2, B1). Includes visual aids and word puzzles for effective learning.

(457)

Simple. Reliable. Private.

WhatsApp Messenger

End-to-end encrypted messagingHigh-quality voice and video callsGroup chats and calls

Connect with friends and family globally through private messaging and high-quality calls. Share moments, documents, and stay in touch across devices, even on slow connections. Your conversations are secured with end-to-end encryption.

🌐 Social Networking

(19M)

Pass EMT B, AEMT & Paramedic

NREMT EMT Test Prep 2026

Customizable practice examsFocus on weak subjectsDetailed question explanations

Prepare for your EMT certification exams with customizable practice tests. Focus on weak subjects, understand concepts with detailed explanations, and build confidence for the NREMT, EMT B, AEMT, and Paramedic tests.

🔍 Reference

(301)

ASE B3 Auto Body Exam Prep

Non-Structural Repair Q&A

Friends Multiplayer Party Game

Create or join multiplayer roomsSelect game categoriesPresent 2 truths and 1 lie

A multiplayer party game where players present two true statements and one false one. Challenge your friends to guess the lie and test your bluffing skills.

🎮 Games

(44)

IQ Test: Raven's Matrices

RPM/SPM/APM IQ Test Questions

Raven's Progressive Matrices IQ testNonverbal, multiple-choice questionsMeasures fluid intelligence

This app offers a nonverbal IQ test based on Raven's Progressive Matrices to measure general intelligence. It features multiple-choice questions with visual puzzles designed to test logical reasoning and spatial awareness. Hints and calculated scores are provided upon completion.

🎬 Entertainment

(3)

Video Course, Citizenship Test

V-IZ: Learn German A1-B1

Extensive video lessons (600+ hours)A1-B1 German curriculumB1 exam preparation (DTZ, Goethe, telc)

Master German from beginner to advanced levels with a comprehensive video course and exam preparation. Practice for official tests like the B1 certificate and citizenship exam, with lessons translated into over 30 languages.

(1)

TestFlight

Beta testing made simple

Test beta app versionsTest App ClipsSubmit feedback

Easily test pre-release versions of apps and App Clips. Provide feedback to developers before public launch. Receive invites via email or public link.

🛠️ Developer Tools

(789K)

free

EMT Prep 2026 - Practice Exams

NREMT EMT B Test Questions

1,600+ realistic exam-style questions37 practice tests6 full-length exams

Prepare for the NREMT cognitive exam with over 1,600 realistic practice questions. This app offers detailed explanations, immediate feedback, and progress tracking to help you master EMS care topics and assess your readiness for the official test.

(11K)

fingerprint and voice scan

Lie Detector Truth Test

Fingerprint and voice scan simulationAnalyzes spoken words for truth/lieRealistic computer voice

Simulate a lie detector test using your device's screen and microphone. Analyze spoken words to determine if they are a truth or a lie, perfect for pranks and entertainment with friends and family.

🎬 Entertainment

(49K)

EMT, Paramedic & Fire Test

EMT B Prep Test

Thousands of exam-like practice questionsQuestions from previous official exam draftsBuild confidence for exam success

Prepare for your EMT certification exam with thousands of practice questions. This app offers exam-like challenges designed to build confidence and ensure you're ready for the official test. Gain insight into key concepts and master the material for a high score.

🔧 Utilities

(6)

Microsecond reaction time measurementMultiple mini-gamesGlobal leaderboards

Test your reflexes with precision down to the microsecond. Engage in a variety of fun mini-games designed to challenge your speed and skill. Compete with friends and players globally on leaderboards.

🎮 Games

(196)

free

CDL Answers Prep Test 2026

Class A, B, Permit & HazMat

Over 1,200 practice questionsCovers all 50 states and endorsementsPersonalized study based on weak areas

Prepare for your Commercial Driver's License (CDL) exam with a comprehensive practice test app. It offers over 1,200 questions mirroring the actual exam, covering all states and endorsements, with detailed explanations and personalized study based on your weak areas. Study anytime, anywhere, and improve your chances of passing on the first try.

(689)

freemium

EMT-B Practice Test 2023

EMT-B Test Prep By ABC

Revision questions with detailed explanationsPractice by topicSimulated mock tests

Prepare for the EMT-B exam with practice tests covering key medical and emergency response topics. This app offers detailed explanations, topic-specific practice, and simulated mock tests to help you identify areas for improvement and maximize study time.

(935)