Comparison

Learn PostgreSQL Offline vs Learning Transformer

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

Head to head
About

Learn PostgreSQL Offline

Features
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PostgreSQL is a popular relational database management system (RDBMS). Our PostgreSQL tutorial provides basic and advanced concepts of PostgreSQL. In this tutorial, we are going to learn all the topics of PostgreSQL language, such as create a database, drop a database, select database, select table, update a record, create a table, delete record, drop table, triggers, functions, insert the record, procedures, cursors, etc. - What is PostgreSQL Database? PostgreSQL is an ORDBMS [Open-Source Object-Relational Database Management System]. It is used to store data securely; supporting best practices, and allow recovering them when the request is processed. - History of PostgreSQL PostgreSQL was developed by the PostgreSQL Global Development Group, which is led by a computer science professor named Michael Stonebraker at the University of California, Berkeley [UCB]. The professor's stonebreaker started in 1986 as a follow-up project and a post-Ingres project to overcome the problems of the existing database system. Initially, it was called as Postgres, but in 1996, the project was renamed to PostgreSQL. Then again, in 2007, they did some analysis, and the development team decided to preserve the name as PostgreSQL. And now, it is the most innovative open-source database available in the market.

About

Learning Transformer

Features
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A Transformer, built by hand and shown one step at a time. Twenty-three screens follow "Attention Is All You Need" (Vaswani et al., 2017) in the paper's own order: a word becoming numbers, the three vectors, the scores, the softmax, four heads merged into one, the mask, the second attention, and the loop that writes one word at a time. What this is not: a trained model. Every weight here was set by hand, so that each one can be read in a single line. Nine numbers stand for a word instead of 512. One encoder layer and one decoder layer instead of six of each. Four heads, four words of vocabulary, one short sentence. What it is: the paper's arithmetic at a size you can check by hand. Every number on every screen is computed while you look at it โ€” no videos, no quizzes, no account, no network. Steps 1 to 10 are free. Steps 11 to 23 are one purchase, made once and kept.

Screenshots

Learn PostgreSQL Offline4 screens
Learning Transformer3 screens

Verdict

The call

The clearest difference is price: Learning Transformer at Free against Learn PostgreSQL Offline's $1.99. Learn PostgreSQL Offline's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 17.0). On ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Learning Transformer is free to download; Learn PostgreSQL Offline costs $1.99 up front. Learning Transformer sells 1 one-off in-app purchase. Learn PostgreSQL Offline asks for nothing beyond the download.

Scorecard3 real differences ยท 3 level
Learn PostgreSQL Offline versus Learning Transformer: the parameters behind the verdict, then further details
ParameterLearn PostgreSQL OfflineLearning Transformer
Price$1.99Free โ€” better
Update frequencyEvery 41 monthsโ€”
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better17.0
Further details โ€” not scored
Size39 MB1 MB
Age rating4+4+
DeveloperMuhammad MubeenSungjun Kim

In-app purchases

None

Learn PostgreSQL Offline

No in-app purchases

1 purchases

Learning Transformer

One-time1
  • the decoder$3.99

Questions

Is Learn PostgreSQL Offline free?
Learn PostgreSQL Offline costs $1.99, with no in-app purchases.
Is Learning Transformer free?
Learning Transformer is free to download, with in-app purchases available.
Do Learn PostgreSQL Offline or Learning Transformer have ads?
Neither Learn PostgreSQL Offline nor Learning Transformer shows ads.

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