CtrlF Pro vs Drilling Calculator for Rigs

CtrlF brings the power of Ctrl+F to the real world. Point your iPhone at any book, document, or printed material, type the word or phrase you are looking for, and watch matches highlight on screen in real time. No more scanning page after page for that one quote or keyword. CtrlF uses advanced on-device OCR to recognize text and highlight every match instantly - with pixel-perfect precision around the exact characters you searched for. LIVE CAMERA SCANNER Point your camera at any printed text and type to search. Matches appear instantly with bright highlights so you can spot what you need at a glance. Works in real time - no photo required. The camera preview displays in the correct portrait orientation, and highlights follow the text precisely even as you move. PRECISE CHARACTER-LEVEL HIGHLIGHTING Unlike other apps that highlight entire lines, CtrlF pinpoints the exact characters you searched for. Search for "quantum" in a line that says "quantum mechanics" and only "quantum" gets highlighted - not the whole line. Multiple matches on the same line? Each one gets its own precise highlight. FAR-DISTANCE RECOGNITION Enhanced text detection recognizes words even from across the room. No need to hold your phone right up to the page - as long as the text is clearly visible on screen, CtrlF can find it. PHOTO LIBRARY SEARCH Already have a photo of the page? Import images from your photo library and search for text in them. Select any photo and find words instantly with the same precise highlighting. MULTI-WORD PHRASE MATCHING Search for exact phrases, not just single words. Find "quantum mechanics" or "United States" as complete phrases across any page. INSTANT MODE SWITCHING Switch seamlessly between Live Camera and Photo Library. Tap the mode you need and start searching right away - no loading, no waiting. 25+ OCR LANGUAGES Supports text recognition in over 25 languages including English, Spanish, French, German, Chinese, Japanese, and Korean. 100% ON-DEVICE AND PRIVATE All text recognition happens on your device. No internet required. No data sent to servers. Your privacy is fully protected. FLASHLIGHT SUPPORT Working in a dim library or cafe? Toggle the built-in flashlight to illuminate the page without leaving the app. SEARCH HISTORY Quickly revisit your recent searches. Your search history is stored locally and always just one tap away. FREE TO START - Live camera search: 5 searches per day - Photo library search: 5 searches per day - No sign-up required. Download and start searching immediately PRO UPGRADE - ONE-TIME $4.99 - Unlimited searches - search as many times as you want - Search history - quickly revisit past searches - Screenshot capture - save what you found - Custom highlight colors - personalize your experience - Audio feedback - hear when matches are found - Auto flashlight - automatically illuminates in low light WHO IS IT FOR Students scanning textbooks for key terms and definitions. Researchers locating specific passages in reference books. Readers finding quotes to share or revisit. Professionals searching through printed reports and documents. Anyone who has ever wished they could Ctrl+F in real life. HOW IT WORKS 1. Open CtrlF and choose Live Camera or Photo Library 2. Point your camera at any printed text, or import a photo 3. Type the word or phrase you want to find 4. See every match highlighted precisely on screen in real time 5. Tap to capture, save, or continue searching Download CtrlF today and never lose track of a word again. SUBSCRIPTION INFORMATION: - Payment will be charged to your Apple ID account at confirmation of purchase. - This is a one-time purchase, not a subscription. You pay once and own Pro forever. - You can restore your purchase on any device linked to your Apple ID. - For support, visit https://asunnyboy861.github.io/CtrlF/support.html

DERRICK is a fast, accurate drilling and well-control calculator for the rig floor. Set up your well once and every calculator pre-fills from it, so you only change what is different today. Built for drilling engineers, toolpushers, company men, mud engineers, and students who need the right number under pressure. - Your active well pre-fills every calculation. Less typing, fewer mistakes. - Tap show your work on any result to see the formula with your exact numbers. - Works fully on device. No account, no sign-in, no tracking. - Field or SI units on every input and result. - iPhone and iPad, with a purpose-built two-pane layout on iPad. CALCULATORS - Pressure and gradient: hydrostatic pressure, equivalent mud weight, equivalent circulating density, bottomhole pressure. - Well control: kill mud weight, formation pressure, MAASP, LOT and FIT to EMW, kick tolerance, gas expansion. - Hydraulics: pump output, annular velocity, strokes and lag, bit hydraulics. - Volumes and capacities: pipe and hole capacity, annular capacity, pipe displacement, slug volumes. - Mud and tubulars: weight up with barite, buoyancy factor, trip margin, and more. MUD WEIGHT WINDOW - See pore pressure, mud weight, ECD and fracture across the whole hole. - Tap or drag the chart to read every value and your margins at any depth. KILL SHEET - Enter shut-in pressures and get kill mud weight, ICP, FCP and a step schedule. - Automatic gas influx indication from the casing to drillpipe differential. AI CO-PILOT - Ask questions grounded in your active well and get clear, field-ready answers. - Explain any calculation, interpret a kick, or draft an end of tour handover. - Decision support only. It always defers to written procedure and the on-site supervisor. HISTORY AND EXPORT - Save any result to your well log with a note, then filter and search the log. - See your activity heatmap and export clean reports. Unlimited wells, the full history, export and reports, unlimited AI, and specialist modules like casing design. PRIVACY - Your wells and calculations stay on your device. No analytics, no ads, no tracking. SAFETY - DERRICK assists calculation. It does not replace your company well-control procedures, the well program, or the judgment of the on-site supervisor. Always verify independently before acting. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/