Stillvaro

Memorize the digits of π. Four digits at a time. In Stillvaro, every group of four digits draws a glyph on a circular dial. Follow its shape, try the digits from memory, then connect them to the next group. Build a sequence through touch, repetition, and recall. FOUR DIGITS. ONE GLYPH. Start with 3141, including pi’s leading 3. Guide highlights the next digit as the shape forms. Switch to Memory to recall it yourself. Connect smaller groups into passages of eight and sixteen. SEE WHAT NEEDS ANOTHER LOOK Learning trends brings recall, guidance, and slips into focus. Compare saved snapshots, see how individual groups are going, and find the digit positions where you have made mistakes. Your practice has a history you can explore. WATCH THE PATTERN UNFOLD Let Watch draw the sequence for you. Choose your pace and repetitions, start from your current group or the beginning, and return to your saved practice whenever you are ready. MAKE THE NEXT CONNECTION Practice brings earlier groups back as you learn. Reviews respond to your recall, mistakes, and use of help. Explore pi in groups of four, eight, or sixteen, and choose where to practice. STEP BACK AND SEE THE SPIRAL Open the Memory Spiral to follow your journey or explore more of pi. Play the sequence, pause to pan and zoom, or fit the whole spiral into view. SEE HOW FAR YOU GET Take a memory test with no hints and no timer. Your uninterrupted score counts complete groups before the first mistake. Finish whenever you like and return to your saved practice place. MORE ROOM ON IPAD A native workspace brings the dial and sequence side by side when there is room. Rotate or resize one app window while keeping your entered digits in place. In wide landscape windows, choose whether the dial sits on the left or right. A QUIET CHALLENGE, AT YOUR PACE Tap a digit, or drag to it and pause. Undo your latest entry before the group is complete. Choose light or dark appearance and optional haptics. Your place and practice history save automatically on your device. Works offline. No account, ads, subscriptions, or in-app purchases. Designed for iPhone and iPad. Requires iOS 26 or iPadOS 26 or later.