Comparison

PP+ Image Formation vs Learn jQuery Offline

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

Head to head
About

PP+ Image Formation

Features
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The Image Formation Using Lenses lab uses an optical bench to determine the focal length of a converging lens and to investigate the relationship between the object distance and the image distance. It is part of Polyhedron Physics Plus, a set of 24 iPad apps for use in the classroom. To see how they work, try the FREE PP+ Newton’s 2nd Law lab. For those who’d prefer to develop their own experiments, the PP Optical Bench & Lenses app features a similar apparatus without lab procedures and other supporting materials. In addition to a 3D simulation that produces realistic data, each lab includes introductory videos, background theory, experimental procedure, analysis and reporting tools, pre-lab quiz, post-lab questions, and teacher support materials. The experimental data produced by the simulations are realistic, including random and systematic errors. These features allow students to use standard data analysis and error analysis techniques to report on their own unique data, just as if the experiment had been performed using hands-on equipment. These labs can serve as replacements for hands-on labs, especially when equipment is not available, or as supplements to hands-on labs. They are also a suitable option for students in distance learning and home school situations. Formative and summative evaluations showed no significant difference in learning between students using the virtual labs and those using hands-on labs. Preliminary results suggest increased learning by students using the virtual labs as supplements to hands-on. Polyhedron Physics was developed by Polyhedron Learning Media, Inc. with partial funding provided under contract numbers ED-07-CO-0040 and ED-IES-11-C-0029 from the Institute of Education Sciences in the U.S. Department of Education through the Small Business Innovation Research (SBIR) program.

About

Learn jQuery Offline

Features
Read full description

jQuery learning app for beginners and professionals provides deep knowledge of jQuery technology. Our jQuery tutorials will help you to learn jQuery fundamentals, example, selectors, events, effects, traversing, CSS and attributes. - What is jQuery jQuery is a fast, small, cross-platform and feature-rich JavaScript library. It is designed to simplify the client-side scripting of HTML. It makes things like HTML document traversal and manipulation, animation, event handling, and AJAX very simple with an easy-to-use API that works on a lot of different type of browsers. The main purpose of jQuery is to provide an easy way to use JavaScript on your website to make it more interactive and attractive. It is also used to add animation. - What should you know before starting to learn jQuery? It is always advised to a fresher to learn the basics of web designing before starting to learn jQuery. He should learn HTML, CSS and JavaScript first. But, if you belong to a technical background, it is up to you. If you are a fresher and want to study these subjects first.

Screenshots

Learn jQuery Offline4 screens

Verdict

The call

The clearest difference is update cadence: PP+ Image Formation at every 3 months against Learn jQuery Offline's every 25 months. Learn jQuery Offline's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

PP+ Image Formation costs $1.99 and Learn jQuery Offline $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PP+ Image Formation ships an update every 3 months, Learn jQuery Offline every 25 months. The most recent releases landed on February 1, 2026 and September 20, 2026 respectively.

Scorecard3 real differences Β· 3 level
PP+ Image Formation versus Learn jQuery Offline: the parameters behind the verdict, then further details
ParameterPP+ Image FormationLearn jQuery Offline
Price$1.99$1.99
Update frequencyEvery 3 months β€” betterEvery 25 months
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPhone, iPad, iPod β€” better
Requires iOS18.013.0 β€” better
Further details β€” not scored
Size91 MB61 MB
Age rating4+4+
DeveloperPolyhedron Learning Media, Inc.Muhammad Mubeen

In-app purchases

None

PP+ Image Formation

No in-app purchases

None

Learn jQuery Offline

No in-app purchases

Questions

Is PP+ Image Formation free?
PP+ Image Formation costs $1.99, with no in-app purchases.
Is Learn jQuery Offline free?
Learn jQuery Offline costs $1.99, with no in-app purchases.
Do PP+ Image Formation or Learn jQuery Offline have ads?
Neither PP+ Image Formation nor Learn jQuery Offline shows ads.
Which is updated more often, PP+ Image Formation or Learn jQuery Offline?
PP+ Image Formation ships an update every 3 months, and Learn jQuery Offline every 25 months. Most recently, PP+ Image Formation was updated on February 1, 2026 and Learn jQuery Offline on September 20, 2026.

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