Comparison

SlipStick 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

SlipStick

This app is a fully functional digital reproduction of a classic engineering slide rule. It allows users to perform complex calculations like multiplication, division, logarithms, and trigonometry, just like the original manual tool.

Highlights
  • Virtual slide rule reproduction
  • Multiplication and division
  • Logarithm calculations
  • Trigonometry calculations
  • Classic engineering tool
Features
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A reproduction of a classic engineering tool - the slide rule. This fully functional manual calculating device was the engineer and math student's means of quickly solving multiplication, division, logarithm and trigonometry calculations until the invention and wide spread use of electronic calculators.

About

Learn Fortran Programming

Features
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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

SlipStick4 screens
Learn Fortran Programming4 screens

Verdict

The call

The clearest difference is update cadence: SlipStick at weekly against Learn Fortran Programming's every 15 months. SlipStick also leads on price ($0.99 vs $1.99). On ads, in-app purchases, device support and iOS requirement 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

SlipStick costs $0.99 and Learn Fortran Programming $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SlipStick ships an update weekly, Learn Fortran Programming every 15 months. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
SlipStick versus Learn Fortran Programming: the parameters behind the verdict, then further details
ParameterSlipStickLearn Fortran Programming
Price$0.99 — better$1.99
Rating4.6 (9 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings9 — better—
Update frequencyWeekly — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size1 MB34 MB
Age rating4+4+
DeveloperSteve GlennerSaqib Masood

In-app purchases

None

SlipStick

No in-app purchases

None

Learn Fortran Programming

No in-app purchases

Questions

Is SlipStick free?
SlipStick costs $0.99, with no in-app purchases.
Is Learn Fortran Programming free?
Learn Fortran Programming costs $1.99, with no in-app purchases.
Do SlipStick or Learn Fortran Programming have ads?
Neither SlipStick nor Learn Fortran Programming shows ads.
Which is updated more often, SlipStick or Learn Fortran Programming?
SlipStick ships an update weekly, and Learn Fortran Programming every 15 months. Most recently, SlipStick was updated on October 17, 2026 and Learn Fortran Programming on October 12, 2026.

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