Calclin vs Thoughtree

A calculator memo app with history that keeps your calculation process visible like a paper roll. Switch between calculator input and formula input to handle everything from everyday math to calculations you want to keep as records. ■ Calculator mode and Formula mode Calculator mode evaluates left to right (5+5×2=20). Formula mode respects operator precedence (5+5×2=15) and supports parentheses and roots. Switch anytime from the input row, changing the calculation style without leaving the active input area. ■ Paper-roll style history Expressions and answers stay on the roll from the top, so you can see the flow of your calculation at a glance. Subtle side lines and top shading keep each frame easy to distinguish, even with multiple rolls. In calculator mode, a running total can be shown while you type. ■ Edit rows and add notes In calculator mode, tap any roll row to edit and recalculate. Add a note to any history entry. Swipe left to delete; swipe right to add a memo, copy the expression, or copy the answer. ■ PDF export Export a calculation roll as a PDF whenever you want to keep it. ■ Use multiple calculators side by side Up to a triple deck. Add or remove panels with the [+][−] header buttons, swipe or tap to switch, and double-tap to toggle between 1-panel and 2-panel views. ■ Unit-aware calculations Calculate with units of length, area, volume, and weight. Press a different unit key to change only the unit, or press the same unit key again to convert the number. Tap an underlined unit to pick from the conversion list. ■ TAX+ and TAX− keys Add tax to, or remove tax from, the value you are entering or the answer you just calculated. Set up to three tax rates; each key shows its rate. ■ Customizable keyboard Long-press any key to define it, and merge keys vertically or horizontally to create larger keys. Switch between 5 layouts (30 keys each), and export or import your arrangement. ■ Flexible display settings Choose the decimal point and grouping symbols, the grouping style (every 3 or 4 digits, Indian style), the number of decimal digits, and the rounding mode (including round half to even). Answers are kept at full precision; rounded answers are marked with "≒", and tapping one shows every digit. Pick Auto, Light, or Dark appearance, and enlarge or reduce text size. Your settings are restored on next launch. ■ Beginner and Expert modes Beginner mode shows labels and tips for each button. Once you are comfortable, Expert mode unlocks advanced operations such as long-press key editing. The calculation engine uses C/C++ fixed-point decimal, stored internally in BCD arrays. Note: Data is not encrypted. Please do not store personal or confidential information.

The native mind map for Mac, iPhone, and iPad that opens your .itmz files as they are. Thoughtree is built in Swift for Apple devices. Get your thoughts out, shape them into branches, and pick up the same map on any device. CAPTURE Add child and sibling topics in a keystroke and keep typing. Start a title with an emoji and it becomes the topic's icon. ORGANIZE Drag branches into place, reorder in the outline, and collapse a whole map to a display level (1–9). Add Markdown notes, relationship lines, boundaries, callouts, images, and tasks. BRING YOUR MAPS WITH YOU Open your .itmz files and keep working on them, topics, notes, and images included. Also imports OPML, Markdown, FreeMind, XMind, CSV, plain text, and browser bookmarks. ANY DEVICE Maps sync through your own iCloud Drive across Mac, iPhone, and iPad. No account, no sign-in. SHARE Export PNG, PDF, and plain text, or print (with a small watermark in Lite). FREE IN THOUGHTREE LITE Unlimited maps, all editing, iCloud sync, every import format, the built-in library of 313 images, two themes (Sapling and Aurora), and the "Create Mind Map" and "Open Mind Map" shortcuts. MORE WITH THOUGHTREE PRO - All 12 themes - Search across every map, plus Spotlight and the "Search Mind Maps" shortcut - Watermark-free PNG / PDF export and printing, plus Markdown and OPML export - Quick Entry: paste an outline and expand it into branches in one step - Edit task attributes and conditional formatting - Home Screen widgets for your recent maps (iPhone and iPad) PURCHASING Choose a one-time Lifetime purchase or an auto-renewing yearly plan. There's no monthly plan. One purchase works on every iPhone, iPad, and Mac signed in with the same Apple ID. The yearly plan renews automatically unless canceled at least 24 hours before the end of the current period, and payment is charged to your Apple ID. Manage or cancel it in your App Store account settings. REQUIREMENTS - Mac: macOS 13 or later - iPhone / iPad: iOS 16 or later Terms of Use: https://thoughtree.nijizo.dev/terms-of-service Privacy Policy: https://thoughtree.nijizo.dev/privacy-policy