n4Studies app icon

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.

by Chetta Ngamjarus★ 5.01 ratingsEducation$1.99Data updated 2026-10-17

n4Studies screenshots

Ranked alternatives

Showing 61–80 of 1,000 ranked alternatives.

  1. Neighborhood Check app icon

    Neighborhood Check

    FusionX Tech LLC

    Population data and demographics

    Demographics with detailed population data at various levels including race, income, and education. View recent crime statistics from the past six months with specific details like date, location, and description.

    ★ 4.4126 ratingsUtilitiesFreeData updated 2026-09-06
  2. PRAXIS app icon

    PRAXIS

    YourTeacher.com

    Practice math and take tests online

    Study for Math tests with structured lessons, practice questions, and full-length exams. Track progress with detailed performance reports. Access study guides and review materials anytime.

    ★ 4.8124 ratingsEducationFreeData updated 2026-09-08
  3. ASWB BSW Social Work Exam Prep app icon

    ASWB BSW Social Work Exam Prep

    MastrAPI Ltd

    Study for exams with a personalized plan

    Study for the with personalized practice plans based on your skill level and requirements. Access practice questions, review test objectives, and track progress. Complete mock exams and receive feedback to improve performance.

    ★ 4.7273 ratingsEducationFreeData updated 2026-09-06
  1. Savings Goals app icon

    Savings Goals

    Moneybudgie Ltd

    Save money, set , track progress

    Track progress by setting target amounts and dates. Calculate monthly or weekly needed to meet . View progress updates and receive suggestions for saving schedules.

    ★ 4.6217 ratingsFinanceFreeData updated 2026-09-08
  2. PERT Math Test Prep app icon

    PERT Math Test Prep

    YourTeacher.com

    Study and take practice tests

    Study for the with structured lessons, practice questions, and full-length exams. Track progress with detailed feedback and review key concepts for exam readiness.

    ★ 4.6102 ratingsEducationFreeData updated 2026-10-06
  3. Safeway Test Practice app icon

    Safeway Test Practice

    SAFEWAY DRIVING SCHOOL, LLC

    Prepare for Minnesota's permit test.

    This free app helps Minnesota drivers' education students prepare for the permit test. Questions are sourced from the MN Driver's Manual, covering important laws for passing the test.

    ★ 3.3197 ratingsEducationFreeData updated 2026-10-28
  4. VTrans app icon

    VTrans

    Shenzhen Beibo Intelligent Technology Co., Ltd.

    ★ 2.335 ratingsUtilitiesFreeData updated 2026-09-06
  5. Journal Club: Medicine app icon

    Journal Club: Medicine

    David Iberri

    Read articles, review studies, stay updated

    Access medical research summaries from internal journals. Read concise reviews of landmark trials written by physicians. Quickly digest key findings to inform patient care decisions. Stay updated with the latest clinical evidence.

    ★ 4.3166 ratingsMedical$6.99Data updated 2026-10-28
  6. Hebrew Alphabet Now app icon

    Hebrew Alphabet Now

    Zyntx Lab LLC

    Learn with quizzes and lessons

    Learn to read and write the through 7 lessons covering print and cursive scripts. Complete multiple choice quizzes after each lesson. Hear native pronunciation for each letter, its sound, and a sample word.

    ★ 4.4149 ratingsEducation$2.99Data updated 2026-09-10
  7. CCM Certification Made Easy app icon

    CCM Certification Made Easy

    Skyscape Medpresso Inc

    Try content, purchase full access

    Study for the CCM exam with organized content covering core material. Access sample content for free, unlock full content via in- purchase. Review key facts and prepare efficiently without unnecessary information.

    ★ 4.7179 ratingsMedicalFreeData updated 2026-09-06
  8. World Factbook Pro Edition app icon

    World Factbook Pro Edition

    Appventions

    Explore countries and view maps

    Explore country details with comprehensive profiles containing 170+ data points. View maps, flags, and key statistics. Search by country name or region. Compare economic, social, and political information. Save favorite countries for quick reference.

    ★ 4.5231 ratingsReference$1.99Data updated 2026-10-28
  9. Calculate Standard Deviation app icon

    Calculate Standard Deviation

    Asad Ahsan

    Instantly

    For a dataset. Input numbers, select sample or population, and compute SD. View results and compare data dispersion. Export calculations and share results.

    ★ 4.560 ratingsEducationFreeData updated 2026-09-06
  10. Math Placement Test Prep app icon

    Math Placement Test Prep

    YourTeacher.com

    Study and take practice tests

    Study for tests with structured lessons, practice problems, and full-length exams. Review key concepts, track progress, and access detailed explanations for each answer.

    ★ 4.375 ratingsEducationFreeData updated 2026-10-11
  11. CBEST Math Test Prep app icon

    CBEST Math Test Prep

    YourTeacher.com

    Study and take practice tests

    Study for the with interactive lessons, practice questions, and full-length exams. Track progress, review detailed explanations, and access study guides tailored to the exam format.

    ★ 4.764 ratingsEducationFreeData updated 2026-10-06
  12. Dilution Calculator app icon

    Dilution Calculator

    Samuel Blackburn

    Calculate ratios instantly

    Calculate ratios by entering the desired ratio and bottle size. Determine the exact amounts of water and solution needed. Supports litres and millimetres with future unit additions. Share results or provide feedback through in- options.

    ★ 4.7156 ratingsUtilitiesFreeData updated 2026-09-25

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.