Why do so many Android apps need a monthly subscription?
With one-time purchases almost becoming obsolete, is the subscription model for Android apps sustainable?

Over the years, I’ve noticed more Android apps now require monthly or yearly subscriptions instead of one-time purchases. Developers have started moving towards subscription-based pricing since it ensures a steady income stream. However, the recurring cost of membership has led to subscription fatigue. With nearly every Android phone packed with apps requiring a subscription, I wonder whether this mode is sustainable or just a way to extract more money from users.