Comparison

Star Rover HD vs Learn Fortran Programming

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

Head to head
About

Star Rover HD

Explore the night sky with a realistic planetarium on your device. Identify stars, planets, and constellations in real-time by simply pointing your device. Travel through time and space to view celestial events and learn about the cosmos.

Highlights
  • Real-time star map updates
  • Identify celestial objects
  • View constellations with artwork
  • Explore planets and moons
  • Moon phases and meteor showers
  • Time and location travel
  • Over 120,000 stars
Features
Read full description

Do you love the starry night? Do you want to know everything in the sky? Star Rover HD is the fantastic planetarium for your iPad. Just hold up your iPad and Star Rover HD will tell you exactly what you are pointing at. Star Rover HD determines your location automatically. You'll see the stars, moon, planets, constellations in their proper place from your current location. As you move your iPad, the star map updates in real time. Star Rover HD makes the virtual sky a gorgeous view. You can see star twinkling, beautiful nebulae, occasional meteor and even sunset glow in the evening. Star Rover HD is very easy to use. You can simply change the sky view in settings and use Quick Find for everything you want to know in the night sky. Star Rover HD lets you set your location manually so you can see the sky from any part of the world. It also lets you travel to the future or the past and see the sky on different dates and times. If you are planning for a solar eclipse, this is the app you need. Features - Over 120,000 stars. - All 88 constellations with beautiful artworks. - Planets and their moons with stunning graphics. - Moon phases. - Real images of Messier objects. - Sky objects information. - Realistic Milky Way. - Equatorial and azimuthal grids. - Sky view underneath the horizon. - Visual magnitude adjustment. - Manually time & date setting. - Manually location setting. - Quick Find. - Point and view.

About

Learn Fortran Programming

Features
Read full description

This comprehensive app is designed for students, engineers, researchers... to be able to use Fortran language from scratch to program in a simple and practical way. Never mind if you have no experience in programming, you will be equally capable of understanding everything and you will finish the course with mastery of the subject. After several years working as an Engineer, I have realized that mastering Fortran to program today is something very necessary in engineering or other programming applications. Some people thinks that Fortran is an old, but the fact is that the demand is increasing. Knowing how to program this language can give you many job opportunities and many economic benefits, especially in the scientific or engineering field. The big problem has always been the complexity to learn that programming requires, since its understanding is not easy. In this course I try to facilitate this entire learning and improvement process, and you will be able to carry out and understand your own codes in a short time, thanks to the step-by-step and detailed examples of every concept. This app includes coding exercises and theoretical explanations as well as practical examples to master Fortran. This app will teach you Fortran in a practical manner. We will start by helping you get Fortran installed on your computer, regardless of your operating system, whether its Linux, MacOS, or Windows, we've got you covered. Then, we will cover a wide variety of topics, including: Installation and Introduction to Fortran Elementary features fortran Program Preparation fortran Decision fortran Fortran Loops Fortran Errors Subprograms and Modules fortran Fortran Arrays Advanced Input and Output Fortran Handling Characters Derived Types Structures Fortran Pointer Variables Simulation Fortran Matrices and Their Applications Introduction to Numerical Methods Fortran Practical Exercises and much more! Fortran, as derived from Formula Translating System, is a general-purpose, imperative programming language. It is used for numeric and scientific computing. Fortran was originally developed by IBM in the 1950s for scientific and engineering applications. Fortran ruled this programming area for a long time and became very popular for high performance computing, because. It supports − Numerical analysis and scientific computation Structured programming Array programming Modular programming Generic programming High performance computing on supercomputers Object oriented programming Concurrent programming Reasonable degree of portability between computer systems Facts about Fortran Fortran was created by a team, led by John Backus at IBM in 1957. Initially the name used to be written in all capital, but current standards and implementations only require the first letter to be capital. Fortran stands for FORmula TRANslator. Originally developed for scientific calculations, it had very limited support for character strings and other structures needed for general purpose programming. Later extensions and developments made it into a high level programming language with good degree of portability. Original versions, Fortran I, II and III are considered obsolete now. Oldest version still in use is Fortran IV, and Fortran 66. Most commonly used versions today are : Fortran 77, Fortran 90, and Fortran 95. Fortran 77 added strings as a distinct type. Fortran 90 added various sorts of threading, and direct array processing.

Screenshots

Learn Fortran Programming4 screens

Verdict

The call

The clearest difference is update cadence: Star Rover HD at every 6 months against Learn Fortran Programming's every 15 months. Star Rover HD also leads on iOS requirement (9.0 vs 13.0). Learn Fortran Programming's advantage is device support (3 vs 1). On price, ads and in-app purchases 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 Rover HD costs $1.99 and Learn Fortran Programming $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Star Rover HD ships an update every 6 months, Learn Fortran Programming every 15 months. The most recent releases landed on June 8, 2026 and September 5, 2026 respectively.

Scorecard3 real differences · 7 level
Star Rover HD versus Learn Fortran Programming: the parameters behind the verdict, then further details
ParameterStar Rover HDLearn Fortran Programming
Price$1.99$1.99
Rating4.7 (95 ratings) — better—
Positive reviews88.6% of reviews—
Number of ratings95 — better—
Update frequencyEvery 6 months — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS9.0 — better13.0
Further details — not scored
Size52 MB34 MB
Age rating4+4+
Developer寒飞 易Saqib Masood

Bugs and requests

Star Rover HD

Reported bugs

2 issues
  • Screen does not rotate to landscape view on iPad
  • Compass shows interference in some areas

Requested features

4 requests
  • Add Proxima Centauri
  • Provide constellation pictures and names simultaneously
  • Improve brightness representation for bright stars
  • Add Iridium Flare tracking

Learn Fortran Programming

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Star Rover HD

No in-app purchases

None

Learn Fortran Programming

No in-app purchases

Questions

Is Star Rover HD free?
Star Rover HD costs $1.99, with no in-app purchases.
Is Learn Fortran Programming free?
Learn Fortran Programming costs $1.99, with no in-app purchases.
Do Star Rover HD or Learn Fortran Programming have ads?
Neither Star Rover HD nor Learn Fortran Programming shows ads.
Which is updated more often, Star Rover HD or Learn Fortran Programming?
Star Rover HD ships an update every 6 months, and Learn Fortran Programming every 15 months. Most recently, Star Rover HD was updated on June 8, 2026 and Learn Fortran Programming on September 5, 2026.

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