{"appstoreID":1580519521,"title":"Mental Math Practice: 1x1","subtitle":"Quick Division & Arithmetic","developerName":"Florian Schweizer","description":"What's 7 x 8? If you had to pause, this app is for you.\n\n1x1 is a fast, focused way to sharpen your mental math. Practice multiplication tables, addition, subtraction, and division at your own pace. Pick your number range, start solving, and watch your speed improve day by day.\n\nWHY 1x1 WORKS\n\n• Covers all four operations: addition, subtraction, multiplication, and division\n• Three difficulty levels: 1–10, 11–100, and 101–1,000\n• Clean interface with zero distractions\n• Quick sessions that fit into any schedule\n• Built for every skill level, from 1st grade math facts to adult brain training\n\nQUICK QUESTION WIDGET\n\nAdd the OneAndOne widget to your home screen and get a simple math question once per hour. It takes two seconds to answer and keeps your skills sharp without opening the app. Think of it as a mini math drill that runs in the background of your day.\n\nFOR STUDENTS, PARENTS & LIFELONG LEARNERS\n\nWhether you're helping your kid study multiplication tables for 3rd grade, brushing up on arithmetic for a GRE prep course, or just want to calculate tips faster at dinner, 1x1 has you covered. The app works great alongside school homework, tutoring sessions, or self-study.\n\nPractice number facts, build speed, and gain confidence with every session. No ads interrupting your flow. No complicated menus. Just math.\n\nHOW TO GET STARTED\n\n1. Choose your operation (add, subtract, multiply, or divide)\n2. Select a number range\n3. Start solving and track your progress\n\nMake mental math second nature. Download 1x1 and start your first math quiz today.","bundleID":"fschweizer.OneAndOne","appiconURL":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b9/f6/50/b9f65009-064c-ecd3-3ecb-33242521406c/Placeholder.mill/1024x1024w.webp","formattedPrice":"Free","appUpdated":"2026-05-13T19:51:28.000Z","appReleased":"2021-08-15T07:00:00.000Z","version":"1.8.1","platforms":["iphone"],"minOS":{"iphone":"Requires iOS 16.0 or later.","mac":"Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.","vision":"Requires visionOS 1.0 or later."},"topIAPs":[{"name":"Pro (Weekly)","price":"$2.99"},{"name":"All Operators","price":"$2.99"},{"name":"Pro (Yearly)","price":"$19.99"},{"name":"Percent Operator","price":"$0.99"},{"name":"Logarithm Operator","price":"$0.99"},{"name":"Cosine Operator","price":"$0.99"},{"name":"Sine Operator","price":"$0.99"},{"name":"Numbers up to 1000","price":"$0.99"},{"name":"Division Operator","price":"$0.99"}],"languages":["EN","DE"],"size":"28.7 MB","category":"Education","developerWebsite":"","screenshots":[{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/85/41/78/85417815-cc07-4224-a232-ba2010dd101a/iPhone_6.5_U0027_U0027.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/7d/62/f5/7d62f571-c30d-c929-d364-fc1e732fbe0a/iPhone_6.5_U0027_U0027-1.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/30/2d/23/302d2377-c79d-1fc7-a12c-b3c2e71b1ef6/iPhone_6.5_U0027_U0027-2.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/13/74/63/137463e9-3948-86b2-a3b3-01a6a3817b62/iPhone_6.5_U0027_U0027-3.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2f/96/ba/2f96babb-e3af-a56d-b34d-b8499840956c/iPhone_6.5_U0027_U0027-4.png/1242x2688w.webp"}]}