CalcCanvas vs EchoLeaf

Change a number. See the whole picture. CalcCanvas is a visual calculator for iPhone and iPad. Keep your numbers, formulas, notes, and graphs together on a canvas, then connect them so your answers update when an input changes. CALCULATIONS THAT STAY CONNECTED Enter an expression, reuse its result, and edit a number or part of a formula directly. Name your inputs, work with supported units, and see how a result is calculated. Scientific functions, radians or degrees, and configurable number formatting are available when you need them. EXPLORE THE WHAT-IFS Adjust inputs with sliders, plot live curves, and save independent scenarios. Compare alternatives with your base numbers before choosing which values to apply. ROOM TO THINK Pan and zoom around your work. Use sections, an outline, and arrangement tools to keep larger canvases organized. Start from an empty canvas or an editable recipe, bill split, trip budget, paint estimate, or graph template. SAVE AND SHARE YOUR WORK Canvases save automatically on your device. Export PDF, images, or text, and share editable .calccanvas files to transfer your work. Local checkpoints let you restore an earlier version as a copy. PRIVATE BY DESIGN No account, ads, analytics, or tracking. Calculation and storage features work offline. Your work stays on your device unless you choose to export or share it. There is no automatic cross-device sync. Available in English, German, Japanese, French, Spanish, Simplified and Traditional Chinese, Korean, Brazilian Portuguese, and Czech. CalcCanvas uses finite-precision numbers and a selected set of units. Currency labels do not provide live exchange rates. Symbolic algebra and arbitrary-precision mathematics are not included.

EchoLeaf turns reading into listening. Open a PDF, TXT, Markdown, HTML, or RTF document, paste text from your clipboard, or write a quick note and let your device read it aloud. The app is designed for focused listening with local text-to-speech that works offline. Choose from multiple voices and listen in more than 30 languages. Scan a page with OCR when the words are only on paper, then review the extracted text before listening. Text highlighting helps you follow along while the document is read, and you can return to your library to continue where you left off. Use EchoLeaf for articles, study notes, saved documents, recipes, and any text you want to hear while your eyes are busy. Keep playback going in the background and make listening part of your everyday routine, at home or away from a connection. Your reading library stays close at hand, with documents, notes, and pasted passages organized for the next session. EchoLeaf keeps the experience simple: bring in text, choose a voice, press play, and follow along at your own pace. Privacy Policy: https://www.freeprivacypolicy.com/live/a598605b-3937-49f6-978d-52559d49ed53 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/