PDF Squeeze vs Prism Tape Calculator

PDF Squeeze makes big PDFs small without making them ugly — and it also scans, reads, signs, converts and answers questions about them, without a single byte leaving your iPhone. SCAN PAPER INTO PDF Point the camera at a page and PDF Squeeze finds the edges, squares it up and cleans it: shadows lifted, paper turned white, ink made sharp. Choose Auto, Grayscale or Black & White, then save. Every scan is searchable — the words are read on device, so you can find, copy and ask about them. SEND TO ANY COMPUTER AirDrop doesn't reach a Windows laptop or a Chromebook. Send to Computer does: type the short address it shows into any browser on the same Wi-Fi and download. No cable, no account, nothing uploaded. Sharing stops when you close the screen. ASK YOUR PDF ANYTHING Open a contract, a lease, a manual or a research paper and just ask. "What's the cancellation policy?" "When does this renew?" "What did they agree to pay?" Answers come with page citations you can tap to jump to the source, so you can check the wording yourself. It all runs on your device: iPhones with Apple Intelligence use the system model, and other iPhones can add an optional on-device model. Scanned and photographed pages are read with on-device OCR in more than twenty languages. SIGN WITHOUT PRINTING Sign with your finger, or type your name and pick a handwriting style. Your signature is stored as strokes, never a photo, so it stays crisp at any zoom — and it's baked into the page, so it survives compression and email and nobody can drag it off. MARK UP LIKE PAPER Highlight, draw freehand and add text boxes you can stretch to any shape. Undo anything, all the way back. TEXT STAYS SHARP Most compressors re-encode every page and hand you a blurry file. PDF Squeeze tries a vector-preserving pass first, keeping text crisp and selectable. Pages are only re-rendered when that actually saves space, and your file never comes out larger than it went in. Filled-in forms keep their answers. HIT AN EXACT SIZE Email limit? Upload cap? Pick 1, 2, 5, 10 or 25 MB and PDF Squeeze finds the best quality that fits just under it — or tells you honestly when it can't. SEE THE DIFFERENCE Drag the Before & After slider across any page to compare the original with the compressed version. CONVERT WITHOUT LEAVING THE APP • PDF to Text, with OCR for scanned pages • PDF to Images, in PNG, JPEG, HEIC or TIFF • Images to PDF • Change Image Format between PNG, JPEG, HEIC and TIFF ALSO IN THE BOX • Compress a whole group of documents at once • Four presets: Light, Balanced, Strong, Extreme • Automatic grayscale detection for extra savings on scans • Rearrange, rotate and delete pages by dragging thumbnails • Extract pages into a new PDF, or merge several PDFs into one • Turn photos into a PDF • Full-text search • Compress from the Share sheet in any app • A library that stays where you left it, and a history of everything you've compressed • Built for iPad too: library on the left, document beside it, Apple Pencil for signing PRIVATE BY DESIGN Scanning, compression, conversion, OCR, signatures and AI answers all happen on your iPhone. Your documents are never uploaded to a server. No accounts, no tracking, no ads. PAY ONCE, KEEP FOREVER Your first compression and five questions are free, and scanning, signing, markup, merging, page editing and converting are free for good. One purchase unlocks everything else for life. No subscription, ever.

Prism Tape Calculator is a calculator with a paper tape. Every line you enter is printed above the keys, the answer updates as you type, and you can tap any earlier result to use it again — with no ads, no tracking and no subscription. THE TAPE • Every calculation you commit is printed to the tape, newest at the bottom, like an adding machine. • The last few lines stay visible above the display, so you always have context. • Tap any line to drop its result into what you are typing now. • Open the full tape to scroll back through everything, swipe to delete a line, or clear it all. • The tape is stored on your device and is there when you come back. SEE THE WHOLE EXPRESSION • The full expression stays on screen — 1,250 × (1 + 8.25%) — not one number at a time. • The result previews live under it before you press equals, so typos are caught before they cost you. • Backspace removes one key at a time (a whole function like sin( in one go). • Press an operator after equals to keep going from the last answer; ans is always a key away. MATH YOU CAN TRUST • Decimal arithmetic: 0.1 + 0.2 = 0.3, exactly. Money math without floating-point surprises. • Percent that behaves the way people mean it: 200 + 15% = 230, 50 − 10% = 45, 20 × 5% = 1. • Thousands separators, sensible rounding, and scientific notation only when a number really needs it. • Clear error messages instead of a mystery “Error”: divide by zero, unbalanced parentheses, invalid input. SCIENTIFIC WHEN YOU NEED IT • Tap sci (or rotate to landscape) for parentheses, powers, roots, sin, cos, tan, ln, log, factorial, π and e. • Degrees or radians. Implicit multiplication works: 2π and 3(4 + 1) mean what you expect. DESIGNED FOR THE PHONE IN YOUR HAND • Big rounded keys sized to your screen, haptic feedback, light and dark mode. • The whole app is a few megabytes and opens instantly. Works completely offline. • VoiceOver reads the expression and every tape line. Supports Dynamic Type. PRIVATE BY DESIGN • No ads. Ever. • No account, nothing to sign in to. • No analytics, no advertising SDKs, no third-party code. • Nothing leaves your device. Prism Tape Calculator is free and fully unlocked, made by Prism Data Group. — Support: https://prismdatagroup.com/prismtapecalculator/support Privacy Policy: https://prismdatagroup.com/prismtapecalculator/privacy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/