PDF Viewer by Nutrient vs Ptable

PDF Viewer is a fast and beautiful app, allowing you to view, search, and annotate PDF documents with ease on your iPhone and iPad. Access your files from iCloud, Dropbox, Box, OneDrive, Google Drive or any other cloud solution via Apple's familiar Document Browser interface. +++ Listed as “Productivity lifesaver” on the App Store +++ "A streamlined interface packed with powerful features - it’s like having a desktop-quality PDF toolkit wherever we go" – App Store Editor Notes “I'm impressed by how the folks at PSPDFKit have been able to fine-tune the document browser to the app's needs.” – MacStories.net "If you want a PDF viewer that is designed for reading PDF books, this is it." – App Review VIEW DOCUMENTS ON THE GO • Easily import a PDF from your favorite cloud service provider, email, or directly off a website. • Supports Open In Place, Drag & Drop and features the familiar Apple Document Browser interface from the Files app. • Search for the exact text you are looking for within the document. • Double tap on the screen to Smart Zoom directly to the text you want to read. • Annotate images (JPEG, PNG) non-destructive, just like PDF documents. (PRO) ANNOTATE WITH EASE • While reviewing a document, use your finger or Apple Pencil to highlight and markup text. • Leave comments by adding a note, text, or drawing directly on the PDF. • Add images or audio. • Reply to notes. (PRO) SIGN DOCUMENTS ANYWHERE • Add your signature to any document using your finger or Apple Pencil. • Move and resize your signature as needed. • Flatten a document to ensure the signature doesn’t change. CREATE AND EDIT PDFs • Create new documents from existing documents by moving, rotating, deleting, or adding new pages. • Combine multiple documents into a single one. (PRO) • Add bookmarks to easily return to certain pages in large documents. FILL OUT FORMS • Quickly fill out PDF Forms by adding text to the fields. • Flatten and secure the form once you’re done to ensure the document doesn’t change. • Add a signature to any Form. STORE, ORGANIZE AND SHARE • Store documents, create folders and organize your documents. • Share documents by printing, emailing or saving your edits back any cloud service. PASSWORD PROTECT DOCUMENTS • Read document metadata, title and keywords. • Protect documents with user and owner passwords and limit permissions. (PRO) AND SO MUCH MORE • Conveniently switch to night mode when viewing your documents at night. • Present on external screens without the distraction of toolbars. (PRO) • Have the text from a PDF read out loud to you with text-to-speech. • PDF Viewer remembers where you were down to the page/position where you left off - even across devices. PRICING PDF Viewer comes with a large feature set, completely free. Some advanced features require the purchase of PDF Viewer Pro, available as a subscription. We offer 3-monthly and yearly subscription plans. There’s also a fully functional 7-day trial, so you can test PDF Viewer Pro (including document merging and password editing) before you commit. All plans unlock the app on iPhone and iPad. TRUSTED BY COMPANIES YOU KNOW PDF Viewer is built on top of and powered by PSPDFKit, the same PDF engine trusted around the world by companies like Dropbox, Box, IBM, Atlassian, SAP, and Lufthansa. BE PART OF THE PDF VIEWER COMMUNITY pdfviewer.io twitter.com/pdfviewerapp LEGAL Duration and price of each subscription are displayed in PDF Viewers’ storefront, updated at the time of purchase. Payment will be charged to iTunes account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off no later than 24 hours before the end of the current period. Subscriptions and auto-renewal can be managed/turned off in the iTunes account settings. Any unused portion of a free trial period is forfeited as soon as a subscription is purchased. Terms of Use: https://pdfviewer.io/terms Privacy Policy: https://pdfviewer.io/privacy

Future Style Periodic Table is a native iOS periodic table app for iPhone and iPad. Unlike traditional static charts, this app features a dark Cyberpunk aesthetic with neon glow effects, Glassmorphism, and fluid native animations — redefining how chemical elements are visualized. The app covers all 118 elements with comprehensive data including atomic number, relative atomic mass, electron configuration, isotopes, and valence. It also supports multi-dimensional heatmap visualization and 3D atomic structure simulation — the perfect tool for learning chemistry and exploring the elements. Highlight: Tap any element to enter an immersive detail view. Drag and rotate the 3D atomic model with touch gestures to experience the beauty of electron orbitals. Multi-language support available for users worldwide. Features Immersive Visual Experience * Cyberpunk Aesthetics: Dark background with dynamic particle effects rendered via Metal, creating a deeply atmospheric, high-tech vibe. * Neon Category Highlights: 10 element categories each with a unique color scheme — borders glow and flow on touch, fully optimized for ProMotion displays. * Universal Device Support: From iPad Pro to iPhone SE, elegant adaptive layouts with free portrait/landscape switching. * Multi-language Support: Switch interface language with one tap, deeply integrated with system language settings. Multi-Dimensional Data Visualization * Heatmap Mode: Instantly switch between atomic radius, electronegativity, ionization energy, melting point, and boiling point distributions — rendered natively with Swift Charts. * Category Filter: Tap any legend item to highlight a specific category (alkali metals, noble gases, lanthanides/actinides, and more). * Live Search: Quickly locate elements by symbol, name, or atomic number — with Spotlight Search integration. 3D Atomic Structure Simulation * SceneKit 3D Orbital Model: Real-time rendering of electron shells and rotating electrons based on electron configuration algorithms, fully GPU-accelerated. * Native Gesture Interaction: Pinch to zoom, two-finger rotate — observe atomic structure from any angle at a silky-smooth 120fps. * Full-Screen Immersive Mode: Tap the model to enter full-screen view; pinch to zoom in on electron shell details. * Detailed Data Cards: Electron configuration notation, shell electron counts, isotope stability, common valences, physical & chemical properties, element history, and visual gallery. Who Is It For? * Middle School Students: New to the periodic table? Neon color coding and category highlights make it easy to distinguish metals, nonmetals, and more. 3D atomic models bring abstract structures to life — making memorization actually fun. * High School Students: The ultimate study companion. Heatmap mode visualizes periodic trends at a glance — electronegativity, ionization energy, valence patterns — so you understand instead of memorize. * University Students & Researchers: Look up atomic mass, electron configurations, isotope data, and more on the go. A pocket-sized replacement for bulky chemistry references — ready in the lab or library. * Educators: Demonstrate periodic trends in class with live category filtering and heatmap switching — turning abstract concepts into something students can actually see. * Chemistry Enthusiasts: Curious about any element? Just search and dive in. The immersive experience makes exploring the periodic table a pleasure in itself.