Comparison

SkyORB Classic Astronomy vs Forge

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

Head to head
About

SkyORB Classic Astronomy

Explore the cosmos with a 3D planetarium and real-time celestial event tracking. Identify stars and planets using your device's sensors and AR, and receive notifications for upcoming astronomical phenomena. Access detailed information and simulations from any location.

Highlights
  • 3D star map and planetarium
  • Real-time planet orbits
  • AR night sky identification
  • Celestial event notifications
  • Universal search for celestial objects
  • Moon phase tracking
  • Worldwide sky simulations
Features
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Unleash the power of the universe with SkyORB, your all-in-one astronomy companion. Explore the stars, planets, and celestial events like never before. Discover the wonders of the cosmos and stay informed about astronomical phenomena. Why Choose SkyORB? Astronomy at Your Fingertips: SkyORB is a lightweight and fast astronomy app designed to put the universe in the palm of your hand. With a 3D star map, a feature-packed planetarium, ephemeris with notifications, and much more, it's your gateway to the cosmos. Real-Time 3D Universe: Immerse yourself in a breathtaking 3D representation of our solar system. Watch as planets orbit the sun in real-time. Zoom in for a closer look at the planets or zoom out to explore the entire Milky Way. Explore the Night Sky: SkyORB brings the night sky to life. Use your device to point at a star or planet, and our app will identify it for you. Whether you rely on GPS positioning, compass orientation, gyroscope data, or ARKit, we've got you covered. Stay Informed: Keep track of comets and satellites with updates from the web. Stay on top of celestial events with personalized ephemeris that covers the next 60 days. Whether it's the peak of a meteor shower or a planetary elongation, we'll make sure you're in the know. Universal Search: Looking for a specific celestial object? Our universal search engine lets you find everything from constellations and planets to space probes and more with just a few keystrokes. Moon Phases: SkyORB provides moon phase information, including rise and set times. Explore the moon's changing faces and understand its impact on the night sky. Worldwide Simulations: Simulate the night sky from any location on Earth or even from other planets like Mars. SkyORB Classic lets you explore the universe from wherever you are. Notifications: Receive local notifications for significant astronomical events like planet visibility, full and new moons, and eclipses. Plus, get the latest astronomy news delivered right to your device. Upgrade to SkyORB Premium and Unlock Even More: Ad-Free Experience: Say goodbye to ads and enjoy uninterrupted stargazing. Enhanced Planetarium: Go full-screen in planetarium mode, unlocking more views. Extended Information: Get more details on moon phases and ephemeris. Comprehensive Search: Unlock the full potential of our search engine. Multi-Device Access: Access your premium features on all your devices connected to your account with iOS cloud storage. And Much More: Enjoy a host of additional premium features. Apple Watch Support: Now you can explore the cosmos right from your wrist with vocal search, digital crown functionality, an equation of time complication, and standalone use. Upgrade and Renewal: The 12-month Premium Membership automatically renews, ensuring uninterrupted access to premium features. Manage your subscription in your iTunes account settings. Step into the world of astronomy with SkyORB. Download it today and embark on your cosmic journey. The universe is waiting

About

Forge

Features
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2026 올해 가장 뜨거운 주제, AI 에이전트를 처음부터 끝까지 마스터하세요. 이런 분을 위한 앱입니다: - LLM 기반 AI 에이전트를 직접 설계하고 구축하고 싶은 개발자 - LangGraph로 복잡한 에이전트 워크플로우를 구현하고 싶은 엔지니어 - MCP/A2A 프로토콜로 에이전트 생태계를 확장하고 싶은 실무자 - RAG와 멀티 에이전트 시스템을 실전에 적용하고 싶은 학습자 콘텐츠 구성 (20챕터 97섹션): Part 1 — 에이전트 기초 - Ch1. LLM 도구 호출의 이해: OpenAI/Anthropic API의 Tool Calling 메커니즘 - Ch2. ReAct 패턴과 에이전트 루프: Thought-Action-Observation 루프 구현 - Ch3. 대화 메모리와 상태 관리: 단기/장기 메모리 전략과 컨텍스트 윈도우 관리 Part 2 — LangGraph 핵심 - Ch4. LangGraph StateGraph 기초: 상태 정의, 노드, 엣지의 기본 패턴 - Ch5. 조건 분기와 동적 라우팅: add_conditional_edges와 서브그래프 합성 - Ch6. 체크포인트와 영속적 실행: 상태 저장·복원, 타임 트래블 디버깅 - Ch7. Human-in-the-Loop 워크플로우: 사람의 승인·수정·피드백 통합 Part 3 — 도구와 프로토콜 - Ch8. 커스텀 도구 개발: 도구 스키마 최적화, 에러 처리, 테스트 - Ch9. MCP 서버 구축: FastMCP로 도구·리소스·프롬프트 노출 - Ch10. MCP 클라이언트와 에이전트 통합: LangGraph에 MCP 도구 통합 - Ch11. A2A 프로토콜 기초: 에이전트 간 통신과 상호운용성 Part 4 — Agentic RAG - Ch12. Agentic RAG: 에이전트가 검색을 도구로 활용, Self-Corrective RAG - Ch13. Adaptive RAG와 동적 라우팅: 쿼리별 No Retrieval/Single-shot/Iterative 선택 - Ch14. GraphRAG와 Knowledge Graph: 구조화된 지식 검색 Part 5 — 멀티 에이전트 - Ch15. Supervisor/Worker 멀티 에이전트: 계층적 에이전트 시스템 - Ch16. CrewAI와 LangGraph 비교: 아키텍처·사용성·성능 분석 Part 6 — 프로덕션 - Ch17. 에이전트 평가와 LangSmith: LLM-as-Judge, 멀티턴 평가 - Ch18. 관찰가능성과 디버깅: 분산 트레이싱, 성능 병목 진단 - Ch19. 가드레일과 Structured Output: 안전한 에이전트 출력 보장 - Ch20. FastAPI 배포와 프로덕션 운영: 스트리밍, 인증, 스케일링 주요 기능: - 오프라인 캐싱 지원 — 네트워크 없이도 학습 가능 - iCloud 동기화 — 즐겨찾기와 읽기 진행률을 기기 간 공유 - 구문 강조 코드 블록 — Python 코드를 선명하게 표시 - Mermaid 다이어그램 — 아키텍처와 플로우를 시각적으로 이해 - 다크모드 지원 v1.1.1 - AI Agents 실전 완전 정복 20챕터 97섹션 수록 - 오프라인 캐싱 지원 - iCloud 동기화 (즐겨찾기, 읽기 진행) - 다크모드 지원 v1.1.1 - AI Agents 실전 완전 정복 20챕터 97섹션 수록 - 오프라인 캐싱 지원 - iCloud 동기화 (즐겨찾기, 읽기 진행) - 다크모드 지원 Forge Series는 개발자를 위한 체계적인 기술 학습 시리즈입니다. 각 주제를 실전 중심으로 구성하여, 개념 이해부터 프로덕션 적용까지 하나의 앱에서 완결합니다.

Screenshots

SkyORB Classic Astronomy4 screens
Forge3 screens

Verdict

The call

The clearest difference is in-app purchases: Forge at none against SkyORB Classic Astronomy's 2. Forge also leads on ads (none vs shown). SkyORB Classic Astronomy's advantage is iOS requirement (15.6 vs 26.0). On price 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. SkyORB Classic Astronomy sells 2 in-app purchases, starting at $1.99 per year. Forge asks for nothing beyond the download.

Scorecard3 real differences · 7 level
SkyORB Classic Astronomy versus Forge: the parameters behind the verdict, then further details
ParameterSkyORB Classic AstronomyForge
PriceFreeFree
Rating4.5 (24 ratings) — better—
Positive reviews53.8% of reviews—
Number of ratings24 — better—
Update frequencyEvery 2 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Mac
Requires iOS15.6 — better26.0
Further details — not scored
Size143 MB9 MB
Age rating4+4+
DeveloperStephane DenisJason Lee

Bugs and requests

SkyORB Classic Astronomy

Reported bugs

4 issues
  • Compass and orientation issues
  • Inconsistent behavior across devices
  • Incorrect or outdated celestial data
  • Persistent login and subscription problems

Requested features

4 requests
  • More detailed instructions and tutorials
  • Improved search and navigation
  • Ability to track comets and asteroids
  • Seamless integration with telescopes

Forge

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

SkyORB Classic Astronomy

Subscriptions1
  • 1-year Premium Subscription$1.991 Year
One-time1
  • Premium Version$3.99
None

Forge

No in-app purchases

Questions

Is SkyORB Classic Astronomy free?
SkyORB Classic Astronomy is free to download, with in-app purchases available.
Is Forge free?
Forge is free to download, with no in-app purchases.
Do SkyORB Classic Astronomy or Forge have ads?
SkyORB Classic Astronomy shows ads; Forge does not.

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