Comparison

R+ ENGINEER vs HelixPlot

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

Head to head
About

R+ ENGINEER

This application connects to a smart device kit, enabling the use of sensors, video, and audio processing. It offers simple programming to control and manipulate the connected hardware, making it an interactive educational tool.

Highlights
  • Connects to ROBOTIS ENGINEER Kit
  • Utilizes smart device sensors
  • Supports video/image processing
  • Enables audio input/output
  • Intuitive programming interface
  • Control and manipulate hardware
Features
Read full description

R+ ENGINEER is a smart device application developed by ROBOTIS. This app connects to ROBOTIS ENGINEER Kit so that various sensors, video/image processing, audio input/output of smart device can be utilized. Simple and intuitive programming allows children to control and manipulate the ROBOTIS ENGINEER Kit.

About

HelixPlot

Features
Read full description

Discover the beauty of mathematics with HelixPlot, the ultimate 3D graphing calculator for parametric equations and complex numbers. Whether you are a student visualizing calculus concepts, a teacher demonstrating vector functions, or an engineer analyzing waveforms, HelixPlot turns abstract formulas into interactive 3D visualizations instantly. ▸ REAL-TIME 3D RENDERING Type your equation and watch it come to life. HelixPlot renders parametric curves, surfaces, and complex functions in stunning 3D with smooth animations and glowing tracer effects. ▸ THREE VISUALIZATION MODES - Parametric Curves: r(t) = (x, y, z) rendered as smooth 3D tubes - Surfaces: z = f(x,y) with height-based color mapping - Complex Functions: Visualize complex numbers in 3D space ▸ 47 BUILT-IN PRESETS Explore famous equations across five scientific fields: - Mathematics: Lissajous curves, Rose curves, Archimedean spirals - Physics: Damped oscillators, Kepler orbits, Wave packets - Chemistry: Arrhenius curves, Lennard-Jones potential - Biology: Logistic growth, Michaelis-Menten kinetics - Earth Science: Tidal patterns, Seismic waves ▸ PROFESSIONAL LATEX EDITOR Input equations naturally with our visual LaTeX editor. Supports fractions, roots, integrals, Greek letters, and all standard mathematical notation. ▸ INTERACTIVE PARAMETER CONTROL Adjust constants with real-time sliders and see how parameters affect your graph instantly. Perfect for understanding mathematical relationships. ▸ MULTIPLE VIEW MODES - Diagram View: Full 3D perspective with projection shadows - Quad View: See 3D + XY + XZ + YZ planes simultaneously - Projection Planes: Customizable colors and transparency ▸ ANIMATION PLAYBACK Watch curves draw themselves with smooth animations. Control playback speed (0.5x to 5x), scrub through time, and track coordinates in real-time. ▸ EXPORT & SHARE - Save high-resolution PNG images for reports and presentations - Generate shareable links so others can view your exact visualization - Copy equation code for use in other projects ▸ CUSTOMIZATION - Light and Dark themes - Customizable projection plane colors - Adjustable grid, axis labels, and tick marks ▸ OPTIMIZED PERFORMANCE - Web Worker parallel processing for smooth UI - GPU-accelerated rendering with custom shaders - Handles complex equations without lag PERFECT FOR: - Students learning trigonometry, vectors, and calculus - Teachers creating visual demonstrations - Researchers generating publication-quality graphics - Artists exploring mathematical beauty HelixPlot brings the hidden beauty of mathematics to your fingertips. Download now and see equations like never before.

Screenshots

R+ ENGINEER4 screens
HelixPlot4 screens

Verdict

The call

The clearest difference is update cadence: HelixPlot at fortnightly against R+ ENGINEER's every 4 months. R+ ENGINEER's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

R+ ENGINEER ships an update every 4 months, HelixPlot fortnightly. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 7 level
R+ ENGINEER versus HelixPlot: the parameters behind the verdict, then further details
ParameterR+ ENGINEERHelixPlot
PriceFreeFree
Rating1.5 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size116 MB12 MB
Age rating4+4+
DeveloperROBOTIS CO., LTD.Yonghun Kim

In-app purchases

None

R+ ENGINEER

No in-app purchases

None

HelixPlot

No in-app purchases

Questions

Is R+ ENGINEER free?
R+ ENGINEER is free to download, with no in-app purchases.
Is HelixPlot free?
HelixPlot is free to download, with no in-app purchases.
Do R+ ENGINEER or HelixPlot have ads?
Neither R+ ENGINEER nor HelixPlot shows ads.
Which is updated more often, R+ ENGINEER or HelixPlot?
R+ ENGINEER ships an update every 4 months, and HelixPlot fortnightly. Most recently, R+ ENGINEER was updated on November 3, 2026 and HelixPlot on November 9, 2026.

Other comparisons