Comparison

Star Map Tracker vs EGK HydroElectric AR

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

Head to head
About

Star Map Tracker

Explore the night sky with this augmented reality stargazing app. Identify stars, constellations, planets, and galaxies in real-time. It provides detailed information and helps you locate celestial objects.

Highlights
  • Augmented reality celestial body view
  • Identification of over 3,000 stars
  • Depiction of 88 constellations
  • Real-time celestial object tracking
  • Solar system object identification
  • Compass calibration
Features
Read full description

Star Map Tracker is an impressive stargazing augmented reality app boasting a database of over 3,000 stars and constellations. This app not only provides guidance through the vast majority of known stars but also furnishes essential information such as right ascension, declination, azimuth, elevation, and more. Whether you aim to align your telescope or simply desire to point your device at the sky for star, constellation, nebula, galaxy, and solar system object identification, this app caters to your needs, functioning as a proficient star finder and augmented reality map of celestial bodies, offering real-time information about them. Immerse yourself in a captivating night stars safari by finding an open space, taking a stroll, and lifting your device to behold the mesmerizing night sky view. The Star Map app serves as an exceptional tracker for all celestial objects, essentially placing a sky object seeker right in your pocket. Key Features: - Augmented reality view of celestial bodies - 88 constellations depicted with their shapes - Over 3,000 actual stars accompanied by detailed descriptions - Ability to search by star/constellation name, HD, HR, HIP - Real-time position of stars/constellations in the sky - Inclusion of the entire solar system (consisting of 9 planets, Sun, and Moon) - Realistic lighting, shadows, and planet textures - Milky Way galaxy background enriched with precise spatial positioning - Compass calibration facilitated using the moon, sun, or cardinal points In-App Purchase: - Enhanced access to names and information of over 3,000 stars (by default, only star information for zodiac constellations is available) - Expanded access to 74 constellations (only 14 are available by default: 12 Zodiac constellations, Ursa Minor, and Ursa Major) - Detailed inclusions of the solar system (encompassing 9 planets; Moon and Sun are available by default)

About

EGK HydroElectric AR

Features
Read full description

Generate power from the flow of water with EGK HydroElectric AR, the next step in our augmented reality education series. This innovative app transforms your surroundings into a dynamic environment to explore the science and engineering behind hydroelectric power. Designed for students, engineers, and curious minds alike, it offers a hands-on, engaging way to learn about one of the world's most vital renewable energy sources. Developed by Isaac Khor Eng Gian of EGK Microelectronic Solutions Group Sdn. Bhd., this app provides a comprehensive curriculum on harnessing the power of water. Experience the Hydroelectric Syllabus: EGK HydroElectric AR features a structured, four-week program that breaks down complex engineering and scientific principles into easy-to-understand AR activities. Week 1: The Water Cycle and Gravity: Learn about the fundamental forces that drive hydroelectric power. Place a 3D model of a watershed in your space and witness an animated water cycle, from evaporation to precipitation, and understand how gravity creates the potential energy needed to generate electricity. Week 2: Dam Structure and Water Flow: Explore the engineering marvel of a hydroelectric dam. Interact with a detailed dam model and see an animation of water flowing through its gates, building pressure, and being channeled towards the turbines. Week 3: Turbine and Generator Mechanics: Get an up-close look at the heart of a power plant. The app reveals the inner workings of the turbine and generator. Watch as the force of the water spins the turbine, which in turn spins the generator to produce electricity, visualizing the conversion of kinetic energy into electrical energy. Week 4: Power Grid Integration: Understand how the electricity generated at the dam reaches your home. Animate the transmission process, from the dam's transformers to high-voltage power lines and distribution grids, explaining the journey of electricity. Engaging Quizzes for STEM Learning: After each week's AR simulation, test your knowledge with interactive, AR-based quizzes. The app challenges you to identify key components and processes by tapping on the 3D models. Immediate visual feedback (green for correct, red for incorrect) reinforces your learning and makes studying fun. Features at a Glance: Immersive Augmented Reality: Interact with high-quality 3D models of dams, turbines, and power grids. STEM-Focused Education: A curriculum designed to teach the science and engineering of hydroelectric power. Interactive Animations: Trigger animations like the water cycle, water flow, and spinning turbines. In-App Quizzes: Reinforce learning with fun and challenging AR-based questions. Intuitive Controls: Easily manipulate models using gestures for translation, rotation, and scaling. Stunning Visuals: Realistic graphics and models in a fluid, engaging AR environment. Download EGK HydroElectric AR today and start building your future in renewable energy!

Screenshots

Star Map Tracker4 screens
EGK HydroElectric AR4 screens

Verdict

The call

The clearest difference is price: Star Map Tracker at Free against EGK HydroElectric AR's $19.99. Star Map Tracker also leads on iOS requirement (12.0 vs 18.5). EGK HydroElectric AR's advantage is in-app purchases (none vs 3). On ads 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

Star Map Tracker is free to download; EGK HydroElectric AR costs $19.99 up front. Star Map Tracker sells 3 one-off in-app purchases. EGK HydroElectric AR asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Star Map Tracker versus EGK HydroElectric AR: the parameters behind the verdict, then further details
ParameterStar Map TrackerEGK HydroElectric AR
PriceFree — better$19.99
Rating5.0 (1 ratings) — better—
Positive reviews28.6% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.5
Further details — not scored
Size107 MB94 MB
Age rating4+4+
DeveloperYuriy KvashaIsaac Eng Gian Khor

Bugs and requests

Star Map Tracker

Reported bugs

11 issues
  • Map is disoriented
  • Stars and planets do not track movement
  • Calibration does not stick
  • App freezes
  • App always points north
Show 6 more
  • Compass is off by degrees
  • Stars constantly shifting
  • App shows incorrect directions
  • GPS is way off
  • App doesn't work on iPhone X
  • AR is useless as camera can't see stars

Requested features

7 requests
  • Add search functionality for stars
  • Include planets in the free version
  • Improve compass synchronization
  • Add language options
  • Show horizon line
Show 2 more
  • Display star sizes/visibility
  • Provide more detailed information on planets

EGK HydroElectric AR

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Star Map Tracker

One-time3
  • Stars & Constellations$1.99
  • Planets$1.99
  • Premium$2.99
None

EGK HydroElectric AR

No in-app purchases

Questions

Is Star Map Tracker free?
Star Map Tracker is free to download, with in-app purchases available.
Is EGK HydroElectric AR free?
EGK HydroElectric AR costs $19.99, with no in-app purchases.
Do Star Map Tracker or EGK HydroElectric AR have ads?
Neither Star Map Tracker nor EGK HydroElectric AR shows ads.

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