MathShapesAR vs Sky Across
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
MathShapesAR
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Scan the marker images to view mathematical shapes through the screen in augmented reality! Pick up and move the markers to see the models from all angles, or move your device to change views. Shapes displayed are the Platonic solids and their dual polyhedra. Download and print markers from: https://www.bblabs.tech/MathShapesAR/
Sky Across
Discover the night sky through augmented reality and explore celestial patterns from diverse cultural perspectives. Compare constellations and star names from different traditions side-by-side in multiple languages, even offline.
- Augmented reality star map
- Multicultural constellation comparison
- Dual-language star names
- Offline stargazing
- Night mode interface
- Lightweight and fast performance
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Explore the sky with your phone β anywhere, anytime. Sky Across is a lightweight, real-time stargazing tool that transforms your phone into an augmented reality star map. Just hold your iPhone towards the sky, and stars, constellations, and celestial patterns will appear on your screen. Whether youβre observing out in the field or right at home, Sky Across makes exploring the night sky effortless. Discover the night sky through diverse cultural perspectives β displaying constellations and star names from different traditions side by side, in any languages of your choice. ---------- Key Features: AR Star Map - Point your phone to the sky to see real-time overlays of stars and constellations with accurate positioning. Constellations Across Cultures - Explore how different civilizations view the night sky. Compare constellation patterns worldwide. Sky Culture Comparison - See star names in different cultures β with dual-language display side-by-side. Supports multiple translations for each sky culture. Offline and Outdoor Friendly - No internet? No problem. Sky Across works offline, perfect for outdoor trips. Night Mode & Simple Interface - Clean, minimal design with a dark theme to protect your night vision. Lightweight and Fast - Optimized for smooth performance on many devices without draining your battery. ---------- Currently version supports sky cultures: Modern (IAU) β’ Chinese β’ Greek β’ Arabic β’ Babylonian β’ Egyptian β’ Maya β’ Romanian β’ Belarusian Currently version supports each sky culture in languages: English β’ Chinese(Simplified) β’ French β’ Japanese β’ Korean β’ German β’ Spanish β’ Italian β’ Russian Currently version supports UI interface in languages: English β’ Chinese(Simplified) β’ Chinese(Traditional) β’ French β’ Japanese β’ Korean β’ German β’ Spanish β’ Italian β’ Russian
Screenshots
Verdict
The clearest difference is price: MathShapesAR at Free against Sky Across's $2.99. MathShapesAR also leads on iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
MathShapesAR is free to download; Sky Across costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | MathShapesAR | Sky Across |
|---|---|---|
| Price | Free β better | $2.99 |
| Positive reviews | β | 100.0% of reviews |
| Update frequency | β | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | β | Paid |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 12.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 70 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Brandy Benedict | Yue Liu |
In-app purchases
MathShapesAR
No in-app purchases
Sky Across
No in-app purchases









