Test Prep 2020 vs Derivative
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Test Prep 2020
Prepare for major exams and tests with practice questions and vocabulary flashcards. Covers a wide range of subjects including DSST, CLEP, AP, Regents, and career-specific certifications.
- Practice exams with randomized questions
- Vocabulary flashcards
- Covers DSST exams
- Covers CLEP exams
- Covers AP exams
- Covers Regents exams
- Career test preparation
Read full descriptionHide full description
New 2019 questions, full exams and vocabulary flashcards Prep for your exam or major test! ACE major exams and Tests in your field DSST Business DSST Civil War Reconstruction DSST Criminal Justice DSST Environment Humanity DSST Ethics America DSST Human Cultural Geography DSST Human Resource Management DSST Information Systems DSST Introduction Computing DSST Law Enforcement DSST Organizational Behavior DSST Personal Finance DSST Public Speaking DSST Substance Abuse DSST Supervision DSST Technical Writing DSST Financial Accounting DSST Heres Your Health DSST World Religions CLEP American Government CLEP American Literature CLEP Biology CLEP Business Law CLEP Financial Accounting CLEP Human Growth CLEP Educational Psychology CLEP Information Systems CLEP Macroeconomics CLEP Natural Science CLEP Social Sciences CLEP Principles of Management CLEP Principles of Marketing CLEP Psychology CLEP Sociology CLEP US History CLEP Western Civilization High School Test Prep AP Bio Buddy AP European History Buddy AP Human Geography Buddy AP Psychology Buddy AP US History Buddy AP World History Buddy APES Buddy- Environmental Science Bio Regents Exam Chem Regents Exam Earth Science Regents Exam Global History Regents Exam Physics Regents Exam US History Regents Exam SAT US History Exam SAT Biology Exam Career Test Prep Real Estate Salesperson Exam Real Estate Appraiser Exam Real Estate Broker Exam Civil Service Clerical Police Exam State Trooper Exam Firefighter Exam Police Sergeant Exam Probation Officer Exam Case Worker Exam EMT Exam Paramedic Exam ASVAB Exam PCAT NCLEX-PN Nurse Aide Exam Radiography Exam Physical Therapist Exam ExCPT Medical Assistant Exam Culinary Arts Border Patrol Exam Dental Assistant Exam Electrician Exam VTNE CDL Praxis -Early Childhood MBLEX Surgical Technologist Exam PANCE Cosmetologist Exam The features of this app include 1. Practice Exams with over 100 randomized questions for each subject 2. Vocabulary Flashcards
Derivative
Read full descriptionHide full description
The DerivativeCalculus is a simple but elegant app to find the derivatives of complex multivariable functions. You can find the partial derivatives of a multivariate function and share it with others or save it locally. You can create a beautiful high quality partial derivative tree and share it with others or save it locally. Derivatives are shown in beautifully written mathematical expression It automatically saves your hard work locally on your device so you can come back and pick up from where you left off as your great effort will not be lost. This app also has a Study page to help you learn important differentiation rules like, product rule, chain rule, quotient rule, ect. This app is perfect for students learning calculus. Sharpen you brain by using this app and learning about the calculus. This is an app for all student groups. From high school to college to university students. Be creative. Enjoy the app!
Screenshots
Verdict
The clearest difference is price: Test Prep 2020 at Free against Derivative's $1.99. Test Prep 2020 also leads on iOS requirement (10.0 vs 15.1). Derivative's advantage is in-app purchases (none vs 10) and update cadence (monthly vs every 3 months). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Test Prep 2020 is free to download; Derivative costs $1.99 up front. Test Prep 2020 sells 10 one-off in-app purchases. Derivative asks for nothing beyond the download.
Test Prep 2020 ships an update every 3 months, Derivative monthly. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.
| Parameter | Test Prep 2020 | Derivative |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 89 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Feraco media Inc. | Om Prakash Chapagain |
In-app purchases
Test Prep 2020
- DSST Human Resource Management$0.99
- DSST Organizational Behavior$0.99
- CLEP American Government$0.99
Show 7 moreShow fewer
- CLEP Principles of Management$0.99
- Police Exam$0.99
- Macroeconomics Flash Cards$0.99
- Criminal Justice Flash Cards$0.99
- Global History Regents FC$0.99
- realestappr fc$0.99
- police flashcards$0.99
Derivative
No in-app purchases
Questions
Is Test Prep 2020 free?
Is Derivative free?
Do Test Prep 2020 or Derivative have ads?
Which is updated more often, Test Prep 2020 or Derivative?
Other comparisons
