Apps Like n4Studies for iPhone and iPad
Calculate study sample size and power.
The app calculates sample size and study power for various study types. It can send results via email to colleagues.
n4Studies screenshots
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.
World Quiz: Learn Geography
Michal Majewski
Learn geography with fun games.
The app offers multiple game types including ABCD Quiz, Write Quiz, and Write Race. Users can learn about countries, US states, capitals, flags, and maps through various challenges and unlock achievements.
StudyGe - World Geography Quiz
Lev Mitrofanov
Countries, capitals, and flags
Learn by identifying countries, capitals, and flags through interactive quizzes. Earn achievements for correct answers. Improve memory and knowledge with age-appropriate challenges designed for children and adults alike.
World Geography - Quiz Game
Martin Tomas
Play quizzes and learn
Test your knowledge with quizzes covering maps, flags, capitals, and more. Answer 6000 questions across four difficulty levels. View worldwide rankings and track progress. Learn about 500 countries, regions, and islands.
Private Pilot Test Prep - FAA
Aeroapps Technology, LLC
Study FAA questions and track progress
Study for the FAA Knowledge with over 900 questions and explanations. Create custom study sessions based on topics and mastery level. Filter questions by difficulty and include or exclude specific types.
Zip Codes
VersaEdge Software, LLC
Look up and map locations
Look up with detailed state, city, and county information. View population data and locate zip code center points on maps. Find nearby , search by city, and access data without internet.
Statistics Calculator--
Behzad Dogahe
Calculate and probabilities
Perform basic statistical calculations, create and edit data lists, and generate summary . Calculate regression models and probability distributions. Unlock advanced features and larger list capacities via in- purchase.
ACCUPLACER
YourTeacher.com
Study math and take practice tests
Study guide and practice tests for Math placement test. Review lessons, complete quizzes, and track progress. Access detailed explanations and test strategies.
Statistics Calculator Lite
KBIC International Limited
Calculate statistical measures of numbers.
The app calculates statistical measures for a set of numbers. It provides the number of terms, sum, mean, mode, median, range, and standard deviation.
Desmos Scientific Calculator
Desmos, Inc.
Calculate, graph, and explore math functions
Perform complex calculations with trigonometric, statistical, and combinatorial functions. Define and evaluate custom equations. Graph mathematical expressions and explore multiple variables. Save and reuse calculations for future use.
MBLEx Practice Tests 2026
EASY PASS COMPANY LIMITED
Questions and take mock
Prepare for the Exam by practicing 900+ questions and taking mock . Receive AI-driven analysis to identify strengths and weaknesses. Track progress and review detailed explanations for each answer.
GED
YourTeacher.com
Study guide and practice tests provided.
The app offers a study guide and practice tests for the GED Math test. Users can cancel within the first 3 days after purchase to avoid charges.
TSI Math Test Prep
YourTeacher.com
Study TSI with practice tests and guides
Study guide and practice tests for TSI placement . Access detailed explanations for each question. Track progress and review weak areas. Complete practice tests with instant feedback.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.