Comparison

Calculator + vs CompSci Calculator

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

Head to head
About

Calculator +

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

Highlights
  • Free basic and scientific calculator
  • Intuitive interface with equation and result display
  • Fraction and percent support
  • Advanced editing capabilities
  • Polynomial and linear equation solver
  • Graphing calculator
  • Unit conversion and geometric calculators
Features
Read full description

Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind! FEATURES: - Free basic calculator - Free scientific calculator - Elegant & Intuitive interface - Advanced editing by easily going back and forth - Displays both the equation & the result at the same time - Supports Fraction & Percent - Supports many scientific functions If you are looking for more advanced features you can upgrade to one or more of the following: - Fraction Calculator with feet, inches & cm support! - Solving for x with a polynomial Calculator for solving quadratic & cubic equations 2x³ - 4x² - 22x + 24 = 0 - Linear Equations Solver for solving system of linear equations 2x – y = 9 3x + 4y = –14 - Graphing Calculator to find the local min, max & intersection points y = 2x³ – 4x (x² + y²)³ = -27y²x² - Triangle Calculator - Cone Calculator - Arc Calculator - Circle Calculator - Base Converter ( HEX OCT BIN DEC ) - Multiple themes Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review. Thanks :) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CompSci Calculator

Perform calculations and conversions between decimal, hexadecimal, and binary bases in real-time. Ideal for programmers and computer scientists, it offers simultaneous display of values across all three modes and supports bitwise operations and complements.

Highlights
  • Decimal, hexadecimal, and binary base calculations
  • Real-time simultaneous conversion
  • Basic algebra between bases
  • Selectable bit size (8, 16, 24, 32)
  • Bitwise functions
  • 1's and 2's complements
Features
Read full description

CompSci Calculator lets you calculate in three different bases: decimal, hexadecimal, and binary. CompSci Calculator was developed for programmers, developers, computer engineers, and computer scientists. In real time you can do part of an equation in one base and then switch to another and complete the equation. As you type in any particular base the values in all three modes are displayed together. Because of the real time instant conversion between the bases CompSci Calculator also serves as an excellent conversion tool. Features: -basic algebra between bases -simultaneous answers in all three bases -selectable bit size: 8,16,24,32 -optional additional 16 bits of radix point precision -bitwise functions -1's and 2's complements -shift left and shift right Student and teacher feedback is very appreciated!

Screenshots

Calculator +1 screens
CompSci Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: CompSci Calculator at none against Calculator +'s 12. CompSci Calculator also leads on iOS requirement (10.0 vs 16.4). Calculator +'s advantage is ratings volume (10K vs 42) and review sentiment (85% vs 63%). On price, update cadence, 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

Both are free to download. Calculator + sells 12 in-app purchases, starting at $4.99 per month. CompSci Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator + holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calculator + has 10K ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 85% of Calculator +'s written reviews are positive against 63% of CompSci Calculator's.

UpkeepUpdate frequency

Calculator + ships an update every 5 days, CompSci Calculator every 3 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator + versus CompSci Calculator: the parameters behind the verdict, then further details
ParameterCalculator +CompSci Calculator
PriceFreeFree
Rating4.6 (10K ratings) — better4.4 (42 ratings)
Positive reviews84.9% of reviews — better62.5% of reviews
Number of ratings10K — better42
Update frequencyEvery 5 daysEvery 3 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.410.0 — better
Further details — not scored
Size49 MB55 MB
Age rating4+4+
DeveloperxNeat.comCorey Smith

Customer experience

Calculator +

All ratings10,181 ratings
Positive91.8%
Neutral2.8%
Negative5.4%
Written reviews941 reviews
Positive84.9%
Neutral4.0%
Negative11.1%

CompSci Calculator

All ratings42 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews8 reviews
Positive62.5%
Neutral0.0%
Negative37.5%

Bugs and requests

Calculator +

Reported bugs

5 issues
  • Fraction calculator has TWO subtraction buttons and NO division button
  • Decimals seem to be changed to fraction with no apparent way of changing it back
  • Functionality is dropped by forcing you to the main menu every time you open it
  • Currency converter broken
  • Login screen freezes

Requested features

5 requests
  • Add mod function
  • Add commas
  • Add 1/x function
  • Support for Retina Display
  • Add number 4 with two lines

CompSci Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Calculator +

Subscriptions2
  • Scientific Calculator3 Days trial$4.991 Month
  • Calculator7 Days trial$39.991 Year
One-time10
  • Linear Calculator$2.99
  • Factoring Calculator$2.99
  • Handwriting Calculator$2.99
Show 7 more
  • Currency Converter$2.99
  • Themes Pack$2.99
  • Graphing Calculator$3.99
  • Fraction Calculator$3.99
  • Scientific Calculator$4.99
  • Calculator Plus$4.99
  • Calculator$16.99
None

CompSci Calculator

No in-app purchases

Questions

Is Calculator + free?
Calculator + is free to download, with in-app purchases available.
Is CompSci Calculator free?
CompSci Calculator is free to download, with no in-app purchases.
Which has better reviews, Calculator + or CompSci Calculator?
Calculator + is rated higher. Calculator + averages 4.6 out of 5 from 10K ratings, while CompSci Calculator averages 4.4 from 42 ratings.
Do Calculator + or CompSci Calculator have ads?
Both Calculator + and CompSci Calculator show ads.
Which is updated more often, Calculator + or CompSci Calculator?
Calculator + ships an update every 5 days, and CompSci Calculator every 3 days. Most recently, Calculator + was updated on October 21, 2026 and CompSci Calculator on October 10, 2026.

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