This version has minor bug-fixes, ensuring that nothing stops you in your quest to conquer Calculus! In addition to your free problem allowance, we offer a 1-month, 4-month and 1-year purchase for unlimited Dogling.

We'd love to hear what you think of Dogl Calculus. You can now easily rate and review the app, either by responding to the prompt that appears when you've used the app for a while, or by pressing the "Rate This App" button on the settings page.