CloudLabs Converging Lens vs Learn Erlang Programming
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CloudLabs Converging Lens
Read full descriptionHide full description
This simulator recreates an optical table with a converging lens and two test objects. The goals of this lab are to experimentally find the focal length, radius of curvature, and power of the lens, as well as find the magnification of the image and determine whether or not it is inverted. During the laboratory development you will be able to observe the changes in the size of the formed image, as the distance between the object and the lens is varied.
Learn Erlang Programming
Master the Erlang programming language to build highly available, scalable soft real-time systems. This app provides a solid understanding of Erlang's core concepts, including concurrency, distribution, and fault tolerance, essential for industries like telecoms and e-commerce.
- Understand Erlang programming language
- Build scalable soft real-time systems
- Learn about high availability
- Explore concurrency and distribution
- Grasp fault tolerance concepts
- Study functional programming principles
Read full descriptionHide full description
Learn Erlang Programming is a complete learning companion for students, developers, and anyone interested in building reliable, scalable, and fault tolerant applications. Whether you are starting Erlang for the first time or improving your existing programming skills, this app provides organized lessons, clear explanations, practical examples, quizzes, and essential programming concepts. Learn at your own pace and develop a strong understanding of Erlang without complicated explanations. Learn Erlang from the Basics Start with the fundamentals and gradually progress toward advanced Erlang development. Each topic is presented in a clear and structured format to help you understand how Erlang works. Topics include Introduction to Erlang Installing and setting up Erlang Erlang shell and basic syntax Variables and data types Atoms and tuples Lists and maps Pattern matching Operators and expressions Functions and modules Recursion Guards and conditions List comprehensions Higher order functions Error handling Processes and message passing Concurrency in Erlang Process monitoring and linking Fault tolerance Distributed programming OTP principles GenServer basics Supervisors and supervision trees File handling Database connectivity Erlang coding practices Practical Erlang Examples Improve your coding skills with practical examples that demonstrate important Erlang concepts. Study reusable examples and understand how each piece of code works. Programming examples help you learn Function creation List operations Recursive solutions Pattern matching Process communication Concurrent task execution Error management Module development Data processing Erlang is designed for developing concurrent, distributed, and fault tolerant systems. Learning Erlang can help you understand functional programming, process based concurrency, message passing, supervision strategies, and reliable backend architecture. Download Learn Erlang Programming and begin building your Erlang development skills today.
Screenshots
Verdict
The clearest difference is price: CloudLabs Converging Lens at Free against Learn Erlang Programming's $1.99. CloudLabs Converging Lens also leads on iOS requirement (9.0 vs 13.0). On update cadence, ads, in-app purchases 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
CloudLabs Converging Lens is free to download; Learn Erlang Programming costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CloudLabs Converging Lens ships an update every 21 months, Learn Erlang Programming every 24 months. The most recent releases landed on December 14, 2025 and September 23, 2026 respectively.
| Parameter | CloudLabs Converging Lens | Learn Erlang Programming |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | — | 4.5 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 21 months — better | Every 24 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 81 MB | 36 MB |
| Age rating | 17+ | 4+ |
| Developer | Jiovany Orozco | Muhammad Mubeen |
In-app purchases
CloudLabs Converging Lens
No in-app purchases
Learn Erlang Programming
No in-app purchases
Questions
Is CloudLabs Converging Lens free?
Is Learn Erlang Programming free?
Do CloudLabs Converging Lens or Learn Erlang Programming have ads?
Which is updated more often, CloudLabs Converging Lens or Learn Erlang Programming?
Other comparisons















