Halcyon Calc Lite vs RMCMobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Symbolic expression manipulation
- Graphing of expressions
- Matrix and vector calculations
- Statistical analysis
- Multiple number formats (decimal, hex, octal, binary)
- Over 225 built-in operations
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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.
RMCMobile
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View RMCTools Plots and Event Logs On-The-Go RMCTools plots and event logs are no longer limited to being viewed on your desktop. View on the go, whether you get them via email, download from a cloud storage app, or have them on your device. RMCMobile can view them all. Simply share the file from another app into RMCMobile, or open RMCMobile directly to open files using the files browser. Multi-Plot Capabilities The plot viewer's multi-plot capabilities allow you to seamlessly switch between plots in a file without losing your place in the current plot. Toggle back and forth between plots quickly, or use the full plot switcher to jump to any plot in the file. Powerful Plot Zooming Not only can you zoom into the entire plot for more detail on both the vertical and horizontal axes using natural pinch gestures, but you can also vertically scale and offset individual scalegroups to separate them from and compare them to similar plot quantities. When you want to undo a scalegroup's individual zoom or vertical offset, it's just a tap away. Want to return the entire plot to its freshly-opened, un-zoomed state? That's just another tap away. Event Log Filtering Search through an event log to find any entries with a certain word or axis in them.
Screenshots
Verdict
The clearest difference is in-app purchases: RMCMobile at none against Halcyon Calc Lite's 3. RMCMobile also leads on ads (none vs shown). Halcyon Calc Lite's advantage is update cadence (every 3 months vs every 24 months). On price, device support and iOS requirement 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
Both are free to download. Halcyon Calc Lite sells 3 one-off in-app purchases. RMCMobile asks for nothing beyond the download.
Halcyon Calc Lite ships an update every 3 months, RMCMobile every 24 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | Halcyon Calc Lite | RMCMobile |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (15 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 3 months — better | Every 24 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 13 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Halcyon Touch Software | DELTA COMPUTER SYSTEMS, Inc |
In-app purchases
Halcyon Calc Lite
- Directory And Unit Conversion Support$0.99
- Programming Support$1.99
- Larger Display Upgrade$1.99
RMCMobile
No in-app purchases









