R+ ENGINEER vs HelixPlot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Connects to ROBOTIS ENGINEER Kit
- Utilizes smart device sensors
- Supports video/image processing
- Enables audio input/output
- Intuitive programming interface
- Control and manipulate hardware
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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.
HelixPlot
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
R+ ENGINEER ships an update every 4 months, HelixPlot fortnightly. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.
| Parameter | R+ ENGINEER | HelixPlot |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 116 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | ROBOTIS CO., LTD. | Yonghun Kim |
In-app purchases
R+ ENGINEER
No in-app purchases
HelixPlot
No in-app purchases
Questions
Is R+ ENGINEER free?
Is HelixPlot free?
Do R+ ENGINEER or HelixPlot have ads?
Which is updated more often, R+ ENGINEER or HelixPlot?
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