Binary Calculator vs PDF Merger

This Binary Calculator app was created in response to requests from visitors to our popular arithmetic.info Binary Calculator web application. The Binary Calculator app actually has four calculators in one. It can add binary numbers, subtract binary numbers, multiply binary numbers, and divide binary numbers. We also included three binary converters: Binary to Decimal, Binary to Hexadecimal, and Binary to Octal. The app is fast, intuitive, and easy to use. It is a standalone app, which means that it will work perfectly fine in places with little or no Internet access.

PDF Merger 2.0 is the fastest, most private way to combine, split, compress, scan, OCR, and sign PDFs on iPhone and iPad — now with built-in AI Chat powered by Gemini. — NEW IN 2.0 — • AI Chat (Gemini 2.5 Flash-Lite) — Ask any PDF anything. Summaries, lookups, totals, translations. Opt-in, with no chat history stored on our servers. 5 free questions/week. • OCR (on-device) — Recognise text on scanned PDFs in 30+ languages. Searchable, copyable, exportable. • Page Extraction — Pull any page into its own PDF in one tap. • Page Numbering — Add numbers to every page with custom format & position. • E-Signature — Stamp a saved signature image with date. • Cover Page Bundler — Auto-generate a cover with title + table of contents. • Insert Blank Page — Perfect for chapter breaks. • 40+ Languages — Fully localized UI and App Store keywords. • iPad Polished — Sidebar layout, drag-and-drop, Apple Pencil ready. — CORE FEATURES — • Merge PDFs — Drag, drop, and reorder unlimited files into one PDF. • Split PDFs — Extract page ranges or single pages with one tap. • Compress PDFs — Shrink size up to 80% while preserving readability. • Rotate Pages — Fix sideways scans, per-page or in batch. • Add Watermark — Text or image, adjustable opacity and position. • Password Lock — AES-128 encrypted PDFs. • Document Scanner — Camera-to-PDF with auto-crop and perspective correction. • JPG to PDF — Photos to PDF with auto-cropping. • PDF to Images — Each page as JPG or PNG. • Apple Intelligence — Smart Summary + Auto-Rename, fully on-device. — PRIVACY-FIRST — • PDF processing stays 100% on your device. • AI Chat is opt-in. When enabled, only the text of the PDF you're asking about is sent to Gemini, cached for 1 hour, and never stored beyond that. • No tracking, no analytics, no advertising. • Files live in your private app sandbox; deleted when you delete them. — PRO TIER (optional) — Unlock unlimited merges, larger batches, watermark removal, password protection, document scanner, OCR, e-signature, AI Chat, Apple Intelligence Smart Summary, and every new feature with a single subscription or one-time Lifetime purchase. • Weekly — try Pro for less than a coffee • Yearly — save 70% • Lifetime — pay once, own forever Subscriptions auto-renew unless cancelled at least 24 hours before the renewal date. Payment is charged to your Apple ID. Manage in Settings → Apple ID → Subscriptions. — DESIGNED FOR iOS — • Built natively with SwiftUI + PDFKit for iOS 17+. • Optimized for iPhone, iPad, and Apple Pencil. • Full Dark Mode support. • Dynamic Type accessibility throughout. • VoiceOver labels on every interactive control. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.freeprivacypolicy.com/live/dca821a0-9b8b-48a6-9565-d1c64344a313