Comparison

Halcyon Calc Lite 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

Halcyon Calc Lite

This app is a powerful calculator for students and professionals, offering advanced features like symbolic expression manipulation, graphing, and statistical analysis. It supports real, complex, and integer numbers, matrices, and vectors, making it versatile for various mathematical tasks.

Highlights
  • Symbolic expression manipulation
  • Graphing of expressions
  • Matrix and vector calculations
  • Statistical analysis
  • Multiple number formats (decimal, hex, octal, binary)
  • Over 225 built-in operations
Features
Read full description

For students, engineers, scientists or people who fondly remember classic calculators, Halcyon Calc Lite is a great application for manipulating numbers and even symbolic expressions. Features: - Use this calculator on an iPhone, iPod Touch or an iPad - Use your finger to quickly scroll through the stack to review intermediate results - Copy and paste support - Over 225 built-in operations, including trig, logarithms, real functions, complex operations and more - Allows you to work with real, complex and integer numbers. - Real and complex numbers can be displayed in standard, fixed, scientific and engineering format - Integer numbers can be displayed in decimal, hexadecimal, octal and binary bases - Work with real and complex matrices and vectors - Enter symbolic expressions and solve them for different values. Even better, solve quadratic formulas, collect and expand factors and terms, find minima, maxima and roots of any expression. - Plot symbolic expressions in X/Y coordinates. Pan the coordinate space by dragging the plot in any direction. Zoom in and out using a pinch gesture. - Determine symbolic derivative, taylor series or numeric integral of an expression. - Store numbers, lists, strings and expressions in symbols. - Store statistical data and calculate totals, averages, standard deviations, linear regressions, etc over that data. - Calculate the probabilities associated with standard distributions like the normal, F and T distributions.

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

Halcyon Calc Lite4 screens
CompSci Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: CompSci Calculator at none against Halcyon Calc Lite's 3. CompSci Calculator also leads on update cadence (every 3 days vs every 3 months) and iOS requirement (10.0 vs 16.6). On price, rating, review sentiment and ratings volume 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. Halcyon Calc Lite sells 3 one-off in-app purchases. CompSci Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Halcyon Calc Lite holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 15 and 42 respectively. Written reviews point the same way: 67% of Halcyon Calc Lite's written reviews are positive against 63% of CompSci Calculator's.

UpkeepUpdate frequency

Halcyon Calc Lite ships an update every 3 months, CompSci Calculator every 3 days. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Halcyon Calc Lite versus CompSci Calculator: the parameters behind the verdict, then further details
ParameterHalcyon Calc LiteCompSci Calculator
PriceFreeFree
Rating4.6 (15 ratings) — better4.4 (42 ratings)
Positive reviews66.7% of reviews — better62.5% of reviews
Number of ratings1542 — better
Update frequencyEvery 3 monthsEvery 3 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.610.0 — better
Further details — not scored
Size13 MB55 MB
Age rating4+4+
DeveloperHalcyon Touch SoftwareCorey Smith

Customer experience

Halcyon Calc Lite

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews12 reviews
Positive66.7%
Neutral8.3%
Negative25.0%

CompSci Calculator

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

In-app purchases

3 purchases

Halcyon Calc Lite

One-time3
  • Directory And Unit Conversion Support$0.99
  • Programming Support$1.99
  • Larger Display Upgrade$1.99
None

CompSci Calculator

No in-app purchases

Questions

Is Halcyon Calc Lite free?
Halcyon Calc Lite 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, Halcyon Calc Lite or CompSci Calculator?
Halcyon Calc Lite is rated higher. Halcyon Calc Lite averages 4.6 out of 5 from 15 ratings, while CompSci Calculator averages 4.4 from 42 ratings.
Do Halcyon Calc Lite or CompSci Calculator have ads?
Both Halcyon Calc Lite and CompSci Calculator show ads.
Which is updated more often, Halcyon Calc Lite or CompSci Calculator?
Halcyon Calc Lite ships an update every 3 months, and CompSci Calculator every 3 days. Most recently, Halcyon Calc Lite was updated on November 1, 2026 and CompSci Calculator on November 2, 2026.

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