Comparison

Halcyon Calc Lite vs GraphCalcPro2Go

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

GraphCalcPro2Go

This advanced scientific calculator offers ultra-high precision and a wide range of functions, replicating expensive handheld devices with added iOS capabilities. It supports both standard and RPN modes, includes built-in constants, and syncs across devices via iCloud. Users can also create graphs and share calculations.

Highlights
  • Ultra high precision and range
  • Standard (in-fix) and RPN modes
  • Built-in constants and unit conversions
  • iCloud sync across devices
  • Create and share graphs
  • Apple Watch compatibility
Features
Read full description

GraphCalcPro2Go is an advanced scientific calculator, offering features found on expensive handheld calculators, but with additional capabilities not possible with handhelds, thanks to iOS. Features include: • No ads. Ever. • Ultra high precision and range • Intuitive and easy to use • Standard (in-fix) and RPN modes • Built-in constants and unit conversions • iCloud sync With iCloud sync, you can synchronize your calculation history with GraphCalcPro2Go on all your iOS devices, and with GraphCalcPro on your Macs. Sharing feature allows you to share your calculation history with other users running GraphCalcPro2Go on their iOS devices and GraphCalcPro on their Macs. Additionally, you can create beautiful graphs with GCP2Go at the touch of a button. And now, you can run GCP2Go on your Apple Watch. GCP2Go on Apple Watch has the precision, performance, and all the scientific functions available on the iOS version - and graphing capability! Sync constants, and optionally history, between GCP2Go on your iPhone and your Apple Watch. Premium upgrade adds additional features, including: • Graph multiple equations simultaneously • Graph printing and sharing • Additional built-in constants, fully customizable • iCloud sync and sharing of user constants

Screenshots

Halcyon Calc Lite4 screens
GraphCalcPro2Go4 screens

Verdict

The call

The clearest difference is ads: GraphCalcPro2Go at none against Halcyon Calc Lite's shown. GraphCalcPro2Go also leads on review sentiment (80% vs 67%). Halcyon Calc Lite's advantage is iOS requirement (16.6 vs 18.6). On price, rating, ratings volume and update cadence 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 and GraphCalcPro2Go sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Halcyon Calc Lite against 4.6 for GraphCalcPro2Go. Both are backed by a comparable volume of ratings — 15 and 40 respectively. Written reviews are what separate them: 67% of Halcyon Calc Lite's written reviews are positive against 80% of GraphCalcPro2Go's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 15, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 7 level
Halcyon Calc Lite versus GraphCalcPro2Go: the parameters behind the verdict, then further details
ParameterHalcyon Calc LiteGraphCalcPro2Go
PriceFreeFree
Rating4.7 (15 ratings) — better4.6 (40 ratings)
Positive reviews66.7% of reviews80.0% of reviews — better
Number of ratings1540 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.6 — better18.6
Further details — not scored
Size13 MB9 MB
Age rating4+4+
DeveloperHalcyon Touch SoftwareStarware Software LLC

Customer experience

Halcyon Calc Lite

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

GraphCalcPro2Go

All ratings40 ratings
Positive90.0%
Neutral5.0%
Negative5.0%
Written reviews10 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

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
1 purchases

GraphCalcPro2Go

One-time1
  • Premium$0.99

Questions

Is Halcyon Calc Lite free?
Halcyon Calc Lite is free to download, with in-app purchases available.
Is GraphCalcPro2Go free?
GraphCalcPro2Go is free to download, with in-app purchases available.
Which has better reviews, Halcyon Calc Lite or GraphCalcPro2Go?
Halcyon Calc Lite is rated higher. Halcyon Calc Lite averages 4.7 out of 5 from 15 ratings, while GraphCalcPro2Go averages 4.6 from 40 ratings.
Do Halcyon Calc Lite or GraphCalcPro2Go have ads?
Halcyon Calc Lite shows ads; GraphCalcPro2Go does not.
Which is updated more often, Halcyon Calc Lite or GraphCalcPro2Go?
Halcyon Calc Lite ships an update every 3 months, and GraphCalcPro2Go every 3 months. Most recently, Halcyon Calc Lite was updated on October 15, 2026 and GraphCalcPro2Go on September 29, 2026.

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