Thank you for using aio Calculator. It's regularly improved and modernized to better serve you. Recent changes include: • Paste to Calculator is back in the Unit Converter's unit menu. • In degree mode, cos(90°) now shows 0 instead of a tiny number like 6.1e-17, and other right angles are exact too. • tan(0) and tan(180°) no longer show an error. • RPN: after swiping a stack row to Clear or Delete it, the row can be swiped again right away. • Programmer: pasting an expression such as 123 + 321 = into a row now enters its result. • The Unit Converter grid no longer flickers when the device is rotated. • The Unit Converter's Feet Inch unit shows its value again, such as 8 ft 2.4 in. • Touching and holding a measurement in the Unit Converter's list shows its menu again. • Speed / Velocity adds Inch/Minute (in/min) and Millimeter/Minute (mm/min). • Unit Converter favorites now sync through iCloud across your iPhone and iPad, and with the Converter of Units app. Sync is on when you're signed in to iCloud; turn it off with Sync via iCloud under Converter Favorites in the app's settings. • History iCloud sync no longer stops after moving to a new iPhone or iPad. If sync is ever paused because the iCloud account changed, the app now says so and offers to resume it. • Accessibility: History comments have a VoiceOver label and grow with larger text, the root keys read as a single button, the sidebar's secondary text and the currency update time are easier to read, and each unit's actions button is easier to tap. • General fixes and improvements.

Thank you for using aio Calculator. This is a big modernization release. • Expressions now resemble more the way they are written mathematically • Enter a function before its value: touch sin and it opens sin(, with the closing paren dimmed until you close it. The whole value can be typed inside, operators included — sin(20 + 30) • The nth root takes its radicand first and its index after the closing paren; permutations and combinations take the population, then the number drawn • Permutations and combinations are written P(8,3) and C(8,3), and the population is now entered first: 8 P 3. Expressions entered the previous way answer differently • History can be shared across your devices through iCloud — off until you turn it on in Settings • Unit Converter results are now saved in History, listed with your calculations in date order. Settings in History shows calculations only, conversions only, or both • A saved conversion can be sent back to the converter with Paste to Converter, which works it out again at today's rates • The converter can show a comment field above the units, kept with the conversion saved in History • Each currency in the converter now shows its country's flag, making the one you want quicker to spot • Button style and number pad location moved to the app's page in Settings, leaving the calculator's settings menu to the things you change while calculating • Refreshed, translucent Liquid Glass toolbars across the app • The calculator's toolbar now matches the rest of the app on iPad — the same size, spacing and grouping as History, the Unit Converter and Information • Toolbar buttons grow with the system text size, so they stay readable at larger accessibility settings • Improved VoiceOver and Voice Control: clearer names for buttons and menus, and numbers read naturally • Hold the Function Group button to choose a group by name — trigonometry, hyperbolic or statistics — with the current one marked. A tap still steps to the next • Calculator, History, and search rebuilt for a faster, smoother experience • The Information guide is refreshed: current pictures, sized to fit the screen in either orientation and following Light and Dark appearance. Rotate the device to see any of them larger • General fixes and improvements

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Updated for iOS and iPadOS 26, and new iPhone 17 (all models) • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Updated for iOS and iPadOS 26, and new iPhone 17 (all models) • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Updated for iOS and iPadOS 26, and new iPhone 17 (all models) • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Updated for iOS and iPadOS 26, and new iPhone 17 (all models) • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected problem where it was not possible to scroll to the start of a long expression when editing it • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected problem in RPN calculator with use of +/- after Enter • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Removed alert if user not signed into iCloud • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected problem where selected measurement would not highlight on iPhone in landscape • Corrected problem where sometimes tab bar would now show on iPhone • Corrected problem where navigation bar would not show on larger iPhone when using calculator in landscape • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Improvements for use in iOS/iPadOS 18.x • Converter now has conversions for Concentration - Glucose • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Improvements in iOS/iPadOS 18.x • Conversion for Concentration - Glucose • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected problem with Electric Vehicle Efficiency converter • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Added Microliter (µl) to Volume - Liquid Capacity • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected occasional crash • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected occasional crash • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Added Feet Inch to Length measurement in Unit Converter • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Updated for iOS/iPadOS 17.x • Corrected crash when using AppIntents in Shortcuts • Added App Intent for finding results on given date • Added App Intent for finding results with some text • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Updated for iOS/iPadOS 17 • Corrected crash in History when all items are deleted • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected problem with enable/disable of numeric pad buttons in programmer mode when base is changed • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected occasional crash when deleting history item from sidebar • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Corrected problem that was preventing widget data from updating • Corrected crash in iOS 14 related to introduction of widget • General improvements and corrections

Thank you for using our app. It's regularly improved and modernized to better serve you. Recent changes include: • Added Electric Vehicle Efficiency to Measurements • General improvements and corrections