Comparison

Truth Table Builder vs Sharpen

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Truth Table Builder

Easily construct truth tables from Boolean formulas. This app supports up to 8 variables and can display sub-expressions, ensuring the original truth function is preserved. It offers a custom keyboard for input, saves and shares tables, and allows operator customization.

Highlights
  • Build truth tables up to 8 variables
  • Shows sub-expressions
  • Preserves original truth function
  • Generates random expressions
  • Supports custom operators and constants
  • Saves and shares truth tables
Features
Read full description

Truth Table Builder is an easy, quick and reliable app that builds truth tables from Boolean/propositional formulas that you enter. Features: - Build truth table of up to 8 variables - Shows sub-expressions of the main expression - Splits expression based on operator precedence rule so that original truth function is preserved - Generates random expressions - Supports all variable letters and logical operators - Custom keyboard for easy input of expressions - History of all entered expressions - Save and share truth tables - Customize operators and truth constants

About

Sharpen

This app revolutionizes college exam preparation by assessing knowledge, identifying improvement areas, and offering personalized AI-driven study recommendations. It provides various study tools like quizzes, flashcards, videos, and AI-powered assistance to boost exam readiness.

Highlights
  • AI-driven study recommendations
  • Personalized knowledge gap analysis
  • Multiple quiz modes
  • Bite-sized video lessons
  • Interactive flashcards
  • AI study buddy for topic breakdown
  • Textbook-aligned content
Features
Read full description

Sharpen is the new college study app that revolutionizes exam prep. Sharpen assesses your current knowledge, identifies areas for improvement, and provides personalized AI-driven study recommendations to boost your exam readiness. Choose from three quiz modes, flashcards, bite-sized videos, chapter summaries, and practice problems, all seamlessly aligned with your college textbook. Or use Ask Sharpen, your AI study buddy, to break down topics and generate new study content tailored to your queries. Features: NEW Ask Sharpen: Enter queries and Sharpen’s AI engine provides deep-dives, links you to related study activities, and generates new learning content. NEW Improve: AI-driven insights show your strengths, knowledge gaps, and personalized study recommendations based on past sessions. Quiz Bank: Thousands of questions across three modes (basic, advanced, and exam). Exam-like Questions: Fill-in-the-blank, multiple choice with images, standard multiple choice, and single choice. Exam Timer: Simulate the exam environment with a built-in timer. Bite-Sized Videos: Concise videos that explain key concepts. Flashcards: Learn key terms from your textbook. Step-by-Step Practice Problems: Reinforce understanding with detailed practice problems. Visual Chapter Summaries: Summarize chapters visually for better retention. Trusted Content: Content built by McGraw Hill subject matter experts and aligned to your textbook. Disciplines covered: McGraw Hill Textbooks & OpenStax Textbooks: Accounting, Algebra, American Government, American History, Anatomy & Physiology, Biology, Business, Business Law, Business Math, Chemistry, Economics, Engineering, Human Resources, Investments, Management, Marketing, Medical Assisting, Medical Terminology, Microbiology, Music, Nutrition, Psychology, Spanish, and others. Testimonials: “I’m rocking the exams and my understanding in class thanks to Sharpen.” “This app is amazing! It gets right to the point & connects with my book for school.” “Fantastic resource! I love the bite-sized lessons, quizzes, and design.” Download Sharpen today and experience a simpler, more effective way to study for exams and class. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Truth Table Builder4 screens
Sharpen4 screens

Verdict

The call

The clearest difference is price: Sharpen at Free against Truth Table Builder's $0.99. Sharpen also leads on update cadence (fortnightly vs every 6 months) and ratings volume (3.3K vs 58). Truth Table Builder's advantage is in-app purchases (none vs 8) and review sentiment (60% vs 40%). On rating, 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

CostPrice · In-app purchases · Ads · Monetization

Sharpen is free to download; Truth Table Builder costs $0.99 up front. Sharpen sells 8 in-app purchases, starting at $11.99 per month. Truth Table Builder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Truth Table Builder against 4.7 for Sharpen. That said, the two scores are not equally well evidenced: Sharpen has 3.3K ratings behind it against 58, so its average is the more settled of the two. Written reviews are what separate them: 60% of Truth Table Builder's written reviews are positive against 40% of Sharpen's.

UpkeepUpdate frequency

Truth Table Builder ships an update every 6 months, Sharpen fortnightly. The most recent releases landed on October 26, 2026 and November 1, 2026 respectively.

Scorecard7 real differences · 3 level
Truth Table Builder versus Sharpen: the parameters behind the verdict, then further details
ParameterTruth Table BuilderSharpen
Price$0.99Free — better
Rating4.7 (58 ratings)4.7 (3.3K ratings) — better
Positive reviews60.0% of reviews — better40.0% of reviews
Number of ratings583.3K — better
Update frequencyEvery 6 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size1 MB194 MB
Age rating4+12+
DeveloperKetan AppaMcGraw-Hill

Customer experience

Truth Table Builder

All ratings58 ratings
Positive93.1%
Neutral1.7%
Negative5.2%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Sharpen

All ratings3,299 ratings
Positive93.3%
Neutral2.8%
Negative3.8%
Written reviews140 reviews
Positive40.0%
Neutral12.9%
Negative47.1%

Bugs and requests

Truth Table Builder

Not enough reviews yet to summarise bugs or requests.

Sharpen

Reported bugs

4 issues
  • Incorrect answer registrations
  • Repeated questions across chapters
  • Inability to restart quizzes
  • Crashing and freezing issues

Requested features

4 requests
  • Expand subject coverage to include more disciplines
  • Improve stability and reduce crashes
  • Add support for landscape mode and multitasking on iPad
  • Provide more variety and randomization of practice questions

In-app purchases

None

Truth Table Builder

No in-app purchases

8 purchases

Sharpen

Subscriptions8
  • Sharpen+7 Days trial$11.991 Month
  • Sharpen+$17.991 Month
  • Sharpen+7 Days trial$17.991 Month
Show 5 more
  • Sharpen+ 3 month$29.993 Months
  • Sharpen+ 3 month7 Days trial$29.993 Months
  • Sharpen+ 12 month BTS7 Days trial$59.991 Year
  • Sharpen+ 12 month$89.991 Year
  • Sharpen+ 12 month7 Days trial$89.991 Year

Questions

Is Truth Table Builder free?
Truth Table Builder costs $0.99, with no in-app purchases.
Is Sharpen free?
Sharpen is free to download, with in-app purchases available.
Which has better reviews, Truth Table Builder or Sharpen?
Sharpen is rated higher. Truth Table Builder averages 4.7 out of 5 from 58 ratings, while Sharpen averages 4.7 from 3.3K ratings.
Do Truth Table Builder or Sharpen have ads?
Neither Truth Table Builder nor Sharpen shows ads.
Which is updated more often, Truth Table Builder or Sharpen?
Truth Table Builder ships an update every 6 months, and Sharpen fortnightly. Most recently, Truth Table Builder was updated on October 26, 2026 and Sharpen on November 1, 2026.

Other comparisons