Comparison

Comet Book vs ABIEdu

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

Head to head
About

Comet Book

Discover and track comets with this educational app. It provides real-time direction and elevation data to help you locate celestial objects in the night sky. Explore the solar system in 3D and visualize the movement of comets and planets.

Highlights
  • Comet viewing direction and elevation
  • Real-time celestial object tracking
  • 3D Solar System mode
  • Visualize comet and planet motion
  • Observing site guidance
Read full description

The Comet Book app clearly shows when Comets can be viewed and in which direction. The direction and elevation of a Comet can change noticeably in a day due to its fast apparent motion. The moon and a bright planet may be convenient as a guide to find the comet though they have large apparent motion, too. This app determines where Comet is in the sky when it becomes visible at your observing site. You can easily start your observation of a Comet by using Comet Book as a guide to the direction and elevation of the comet. In addition, the new “3D Solar System seen from Space” mode allows you to view the motion of Comets and planets turning around the sun. Please take a look the comet’s movement around our solar system.

About

ABIEdu

Features
Read full description

ABIEdu is an academic resource platform designed for universities, educators, and students in business education. Whether you're a faculty member building a course or a student looking to connect theory with real-world practice, ABIEdu gives you access to structured case studies, study guides, and applied learning materials — all developed with academic rigour and industry relevance. For Educators Access curriculum-aligned resources that integrate directly into your course outlines across entrepreneurship, marketing, management, strategy, digital transformation, and leadership. Materials are designed to spark classroom discussion, encourage critical thinking, and support experiential and case-based learning approaches. For Students Explore real-world business scenarios that bring your coursework to life. Study guides and applied case studies help you understand how theory translates into practice — preparing you for the challenges of the modern business world. What Makes ABIEdu Different — Curriculum-aligned content mapped to business and management courses — Applied learning resources grounded in real industry context — Developed with professors, researchers, and industry professionals worldwide — Reviewed by an international Academic Advisory Council — Supports experiential, case-based, and applied learning models — A growing global network of faculty contributors and institutional partners Founded by Dr Sriram Ananthan — a professor and researcher with over 20 years of experience in business education, entrepreneurship, digital marketing, and strategic innovation — ABIEdu bridges the gap between academic research, teaching practice, and industry insight. Join universities and educators worldwide who are using ABIEdu to deliver business education that is both intellectually rigorous and immediately relevant. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Comet Book2 screens
ABIEdu4 screens

Verdict

The call

The clearest difference is in-app purchases: Comet Book at none against ABIEdu's 2. Comet Book also leads on iOS requirement (12.0 vs 15.1). ABIEdu's advantage is update cadence (every 5 days vs every 6 months). On price, 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

Both are free to download. ABIEdu sells 2 in-app purchases, starting at $12.99 per month. Comet Book asks for nothing beyond the download.

UpkeepUpdate frequency

Comet Book ships an update every 6 months, ABIEdu every 5 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Comet Book versus ABIEdu: the parameters behind the verdict, then further details
ParameterComet BookABIEdu
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews54.9% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size10 MB19 MB
Age rating9+4+
DeveloperVixen Co.,Ltd.Dr Sriram Ananthan

In-app purchases

None

Comet Book

No in-app purchases

2 purchases

ABIEdu

Subscriptions2
  • Individual Pro$12.991 Month
  • Faculty Pro$19.991 Month

Questions

Is Comet Book free?
Comet Book is free to download, with no in-app purchases.
Is ABIEdu free?
ABIEdu is free to download, with in-app purchases available.
Do Comet Book or ABIEdu have ads?
Neither Comet Book nor ABIEdu shows ads.
Which is updated more often, Comet Book or ABIEdu?
Comet Book ships an update every 6 months, and ABIEdu every 5 days. Most recently, Comet Book was updated on November 1, 2026 and ABIEdu on November 5, 2026.

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