The 13-line Quran is distinct due to its large, bold, and clear script. Unlike the 15-line Madinah script, the 13-line version is often preferred in South Asian countries (India, Pakistan, Bangladesh) and South Africa because:
The spacing between lines allows the brain to "snapshot" the page more effectively, which is a critical technique in memorization.
Always lock your device in landscape mode to trigger the dual-page view.