SQL Practice vs BGNFK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SQL Practice
Master SQL with short, daily interactive sessions. Practice real-world queries and datasets on your phone to build confidence for career changes, professional development, or technical interviews. Learn database concepts and advanced techniques at your own pace.
- 15-minute daily learning sessions
- Interactive exercises with real-world datasets
- Progressive curriculum from beginner to advanced
- Instant feedback and mistake analysis
- Gamified progress tracking (streaks, XP, achievements)
- Master SELECT, JOINs, aggregations, and subqueries
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Learn SQL in 15-minute daily sessions — on your phone, anywhere. SQL Practice turns idle moments into practical data skills. With interactive exercises, realistic datasets, and instant feedback, you’ll build SQL confidence from beginner fundamentals to interview-ready skills. Who it’s for: - Career changers entering tech - Professionals adding SQL to their toolkit - Students preparing for technical interviews - Anyone curious about data and databases Why it’s different: - Learn by doing: write and run real SQL queries - SQL Patterns (Pro): understand reusable approaches instead of memorizing answers - Database Bits (Pro): build intuition with short, visual lessons - Smarter feedback (Pro): see why your result differs from the expected output - Progressive curriculum: start with the fundamentals and advance at your own pace - Mobile-first design: practice whenever you have a few spare minutes When you get stuck: With Pro, SQL Practice helps you move forward without immediately giving away the answer. Use progressive hints, compare your results with the expected output, and explore SQL X-Ray explanations that break queries into understandable steps. What you’ll learn: - SELECT, WHERE, ORDER BY, and filtering - JOINs and relationships between tables - COUNT, SUM, AVG, GROUP BY, and HAVING - Subqueries and advanced query techniques - Reusable SQL patterns (Pro) - Core database concepts, indexes, and data design (Pro) Practice your way: - Guided SQL lessons - Easy, medium, and hard exercises - Quick drills - Short visual database lessons (Pro) - Daily practice challenges - Streaks, XP, achievements, and progress tracking - Hardcore mode: turn off the advanced SQL keyboard and solve the toughest challenges without assistance—the highest level of SQL practice. Free and Pro: Core SQL lessons, exercises, drills, streaks, and basic progress tracking are free. An optional auto-renewing Pro subscription unlocks SQL Patterns, Database Bits, progressive hints, detailed result comparisons, and SQL X-Ray step-by-step explanations. Available plans, billing periods, trial eligibility, and localized prices are shown before purchase. No purchase is required to use the core learning and practice features. Start your data journey today — no prior coding experience required, just 15 minutes of curiosity. Privacy Policy: https://martongreber.github.io/mvp/privacy.html Terms of Use: https://martongreber.github.io/mvp/terms.html
BGNFK
Learn about the technical principles, regulations, and responsible use of electric bicycles. This app helps you understand how to best utilize this efficient and eco-friendly urban transportation method.
- Electric bicycle technical principles
- Local regulation compliance
- Responsible usage guidelines
- Maintenance tips
- Urban travel efficiency
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Electric bicycles are a revolutionary tool for short-distance urban travel, perfectly blending human and electric power to achieve an exceptional balance between efficiency, environmental friendliness, and convenience. Understanding their technical principles, complying with local regulations, and using and maintaining them responsibly are key to enjoying the benefits of this transportation mode
Screenshots
Verdict
The clearest difference is review sentiment: SQL Practice at 86% against BGNFK's 0%. SQL Practice also leads on rating (4.7 vs 1.3) and ratings volume (150 vs 9). BGNFK's advantage is in-app purchases (none vs 2) and update cadence (every 5 weeks vs every 6 months). On price, ads, monetization model 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
Both are free to download. SQL Practice sells 2 in-app purchases, starting at $3.99 per 7 days. BGNFK asks for nothing beyond the download.
SQL Practice holds the better App Store score, 4.7 against 1.3. That said, the two scores are not equally well evidenced: SQL Practice has 150 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 86% of SQL Practice's written reviews are positive against 0% of BGNFK's.
SQL Practice ships an update every 6 months, BGNFK every 5 weeks. The most recent releases landed on October 28, 2026 and October 12, 2026 respectively.
| Parameter | SQL Practice | BGNFK |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (150 ratings) — better | 1.3 (9 ratings) |
| Positive reviews | 86.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 150 — better | 9 |
| Update frequency | Every 6 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Best chart rank | #100 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 48 MB | 149 MB |
| Age rating | 4+ | 17+ |
| Developer | Marton Greber | Southstar Media LLC |
Customer experience
SQL Practice
BGNFK
In-app purchases
SQL Practice
- Pro Access3 Days trial$3.997 Days
- Pro Access$19.991 Year
BGNFK
No in-app purchases









