FlashAnzan 1.3.5 — iPhone Duo is here. FlashAnzan folds, opens and turns right along with it. Now optimized for iPhone Duo. Set it half-open like a laptop: the numbers flash on the top screen while the bottom screen shows which problem you're on and how far along you are. When it's time to answer, the bottom screen turns into a number pad — one screen to watch, one to type, so you can stay focused on the math. The day your Duo arrives, open FlashAnzan first.

Now optimized for iPhone Duo. Set it half-open like a laptop: the numbers flash on the top screen while the bottom screen shows which problem you're on and how far along you are. When it's time to answer, the bottom screen turns into a number pad — one screen to watch, one to type, so you can stay focused on the math.

Small improvements under the hood. Keep climbing from 10-kyu to 20-dan.

Family Sharing is here. Once you unlock every grade, up to five other family members in your Family Sharing group can use it too, at no extra cost.

Answering on Apple Watch is easier now: a built-in number pad, with voice input one tap away. Each flashed number, and every right or wrong answer, comes with sound and haptics.

Now on Apple Watch. Pick a grade and take the test on your wrist—answer by voice or by typing.

Now on the Mac. The same grades, the same records—one purchase covers iPhone, iPad and Mac. Nine languages: German, Spanish, French and Brazilian Portuguese join Japanese, English, Chinese (Simplified and Traditional) and Korean. Links from the App Store now open straight to the grade list or free practice.

New graded mode: climb 30 ranks from Kyu 10 to Dan 20 in the exam's total-time format—10 problems, 70 to pass. Answer by voice (recognition stays on device), and your best grade now syncs via iCloud. Also new: free practice, a startup tutorial, and a settings screen. Now available in Simplified Chinese, Traditional Chinese and Korean as well as Japanese and English. Open the grade list or free practice straight from Siri and Shortcuts. Refreshed panels on iOS 26 and later. Also fits the iPhone 18 Pro and iPhone 18 Pro Max displays.