PGP HUB vs Formal Languages Basics
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PGP HUB
Read full descriptionHide full description
Get access to all content in Pritam Patil. Access pre-recorded courses, enrol for live workshops, get certified and a lot more! Be a part of the awesome community that you always wanted to be in!
Formal Languages Basics
Read full descriptionHide full description
Formal Languages Basics is an independent study app for building confidence with core theory and practical problem solving in formal languages. Designed for students, self-learners, interview prep, and anyone reviewing compiler and parsing concepts, the app includes 160 practice questions across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. Features: - FSRS spaced-repetition intervals to review at the right time - Weak-point heatmap to spot topics that need work - Daily challenge for steady practice - Mock exams for timed review - Clear explanation with every question - Offline practice for focused study anywhere - No login required Use it to review automata, grammars, regular languages, context-free languages, parsing ideas, and common reasoning traps. Independent study app for Formal Languages Basics practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners. Practice offline, no login required.
Screenshots
Verdict
The clearest difference is in-app purchases: Formal Languages Basics at none against PGP HUB's 2. Formal Languages Basics also leads on device support (3 vs 1). On price, ads and iOS requirement 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
Both are free to download. PGP HUB sells 2 one-off in-app purchases. Formal Languages Basics asks for nothing beyond the download.
| Parameter | PGP HUB | Formal Languages Basics |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | โ |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone | iPhone, iPad, iPod โ better |
| Requires iOS | 16.4 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 85 MB | 38 MB |
| Age rating | 17+ | 4+ |
| Developer | TagMango Inc | AFTW LLC |
In-app purchases
PGP HUB
- Silver Membership$59.99
- Gold Membership$249.99
Formal Languages Basics
No in-app purchases
Questions
Is PGP HUB free?
Is Formal Languages Basics free?
Do PGP HUB or Formal Languages Basics have ads?
Other comparisons















