Comparison

HTML5 Viewer Pro vs Algorithms

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

Head to head
About

HTML5 Viewer Pro

This app is a mobile text editor designed for web development. It offers features like syntax highlighting, auto-completion, and code execution to help developers write and test HTML, CSS, and JavaScript on their devices.

Highlights
  • Syntax highlighting
  • Auto indention
  • Code assist
  • Auto completion
  • Compilation and execution
  • Local HTML editing
Features
Read full description

HTML5 Viewer Pro is an optimized text editor focused on coding. It is a handy tool for development on iOs. It contains necessary features for coding, includes syntax highlighting, auto indention, code assist, auto completion, compilation and execution, et

About

Algorithms

Learn algorithm concepts through interactive animations and code explanations. Master complex problems with a step-by-step visual approach, ideal for interview preparation and efficient learning.

Highlights
  • Interactive algorithm animations
  • Code explanations with subtitles
  • Step-by-step learning process
  • Categorized algorithm problems
  • Visual debugging aid
  • Focus on understanding ideas and code
Features
Read full description

Did you pass the interview algorithm question? Learning algorithm questions takes too much time? Not your problem! Before this, no algorithmic learning method could be so simple and efficient. It only takes three steps to become an algorithm master: The first step is to read the question; The second step is to play the animation, refer to the subtitles, and understand the ideas and codes; The third step is to read, analyze and summarize; Why do you make an algorithm animation diagram app? Like many programmers, I have to prepare a lot of time to brush up the algorithm every time I change jobs. Very good, in the process of brushing the questions, you must first read the solution. I also read a lot of problem solutions from big guys on the Internet, and I especially like to read algorithm analysis with moving pictures or schematic diagrams, which is faster than reading text. In the process, several problems were also found, such as: the animation is not interactive and cannot be paused; the data is dead and cannot be changed; it is not convenient to study on the mobile phone, etc. I saw some good animations at the beginning, and I had a strong urge to implement them in the app with native code several times. This time I finally made up my mind and made 70 animations in one go. I understand that the positioning of this app is a tool that can help us quickly understand algorithm ideas and codes, help memory, and improve learning efficiency. But here you can't submit, you can't execute the code, and the code still needs to be typed on the computer to make it feel better. Why is it not arranged in the order of the leetcode number? At present, the algorithm questions are classified into three major blocks: - linked list, string, array, binary tree; - Backtracking, greedy, dynamic programming, divide and conquer; - Sort and classify separately. Under each category, the difficulty is divided into easy, medium and hard. First classify data structures and algorithms separately, and learn according to knowledge points. For example, you can concentrate on learning binary tree structures or dynamic programming algorithms, so that concentrated saturation training can help improve learning efficiency. The data structure comes first, and the algorithm follows, which is also arranged in the order in which we learn theoretical knowledge. In terms of algorithms, four types are currently arranged: backtracking, greedy, dynamic programming, and divide-and-conquer. When I learned data structures and algorithms many years ago, I first came into contact with various sorting algorithms. At that time, I felt that sorting was too difficult, and I was very impressed, so I made a separate sorting classification for beginners. Thinking on how to combine animation and code and other interactive issues - In the process of learning algorithms by myself, I often understand the ideas, but I can't understand the codes, and many codes in the text explanations have no comments. Seeing this is a big headache. Therefore, when thinking about App interaction, the code highlighting function is specially designed, which means that each line of code will be highlighted as the animation progresses. In this way, the animation is executing, the code is highlighted, and it looks cool. - Although the animation is easy to understand, it still needs some short explanations, so the "subtitle" function is designed below the animation. Every time the corresponding step is executed, the corresponding explanation will be displayed. - Animation playback and reset, each algorithm page has a playback function, so how to prepare test cases? To simplify the concept of test cases, a "reset" button is designed, which means that the test cases are random. When you want to change a set of data, just click reset.

Screenshots

HTML5 Viewer Pro4 screens
Algorithms4 screens

Verdict

The call

The clearest difference is rating: Algorithms at 4.5 against HTML5 Viewer Pro's 4.0. Algorithms also leads on ads (none vs shown) and chart position (#149 vs unranked). HTML5 Viewer Pro's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.6). On price, review sentiment 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. Algorithms sells 3 one-off in-app purchases. HTML5 Viewer Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Algorithms holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 75% of HTML5 Viewer Pro's written reviews are positive against 79% of Algorithms's.

UpkeepUpdate frequency

HTML5 Viewer Pro ships an update every 6 weeks, Algorithms every 3 weeks. Both last shipped on September 18, 2026.

Scorecard8 real differences · 3 level
HTML5 Viewer Pro versus Algorithms: the parameters behind the verdict, then further details
ParameterHTML5 Viewer ProAlgorithms
PriceFreeFree
Rating4.0 (2 ratings)4.5 (8 ratings) — better
Positive reviews75.0% of reviews78.6% of reviews — better
Number of ratings28 — better
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supportedFree — better
Best chart rank—#149 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size21 MB25 MB
Age rating4+4+
DeveloperDREAMER NETWORK CO., LTD森 林

Customer experience

HTML5 Viewer Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Algorithms

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews14 reviews
Positive78.6%
Neutral7.1%
Negative14.3%

In-app purchases

None

HTML5 Viewer Pro

No in-app purchases

3 purchases

Algorithms

One-time3
  • Unlock easy problems$2.99
  • Unlock medium & hard problems$3.99
  • Unlock all problems$5.99

Questions

Is HTML5 Viewer Pro free?
HTML5 Viewer Pro is free to download, with no in-app purchases.
Is Algorithms free?
Algorithms is free to download, with in-app purchases available.
Which has better reviews, HTML5 Viewer Pro or Algorithms?
Algorithms is rated higher. HTML5 Viewer Pro averages 4.0 out of 5 from 2 ratings, while Algorithms averages 4.5 from 8 ratings.
Do HTML5 Viewer Pro or Algorithms have ads?
HTML5 Viewer Pro shows ads; Algorithms does not.
Which is updated more often, HTML5 Viewer Pro or Algorithms?
HTML5 Viewer Pro ships an update every 6 weeks, and Algorithms every 3 weeks. Most recently, HTML5 Viewer Pro was updated on September 18, 2026 and Algorithms on September 18, 2026.

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