OneOpen vs Sticky Notea

OneOpen is a multi-format file viewer for iPhone and iPad. Open documents, web pages, CAD drawings, 3D models and archives from Files, Mail and apps that support document sharing. HTML and Markdown Preview HTML, HTM and XHTML pages. Read Markdown / MD notes with headings, a table of contents, tables, code fences, task lists, footnotes and reference links. ZIP websites retain local images, styles and relative resources. Markdown in packages can display supported local images. Ordinary HTML allows restricted HTTPS/WSS networking by default, with offline and Safe Preview options. Markdown does not run scripts or load remote images. CAD drawings and 3D models (Advanced) • Pan, zoom and toggle layers in supported DWG/DXF 2D model-space drawings. • Rotate STEP/STP, IGES/IGS, BREP/BRP, STL, OBJ and PLY models, including PLY vertex colors and point clouds. • ZIP a complete OBJ model folder to load supported MTL materials, PNG/JPEG textures, normals, transparency and groups. A standalone OBJ shows geometry without reading private neighboring files. • Preview supported static GLB / glTF 2.0 geometry, nodes, basic materials and PNG/JPEG textures. Model ZIPs retain relative resources. JSON and model information have separate views. • USDZ starts in object view; choose AR when needed. • Included models and engineering drawings demonstrate supported features. Everyday viewing is free Read PDF, Office/iWork, images, audio/video, JSON, XML, YAML, CSV, code and text. PDF supports continuous reading, zoom, search and page controls that hide while scrolling. Edit supported text in an independent working copy. Archives and EPUB Browse supported ZIP/7Z/RAR/TAR, GZ/BZ2/XZ/Zstandard/LZ4/LZMA/Z, CAB/CPIO/AR/XAR/ISO9660/LHA and TAR combinations. Open/share entries; extract to Files. ZIP/EPUB are free; others need Advanced Access. EPUB follows the declared chapter order, with a table of contents, previous/next controls, current-chapter search and reading settings. Pages stay offline. A chapter error keeps navigation available. DRM, media overlays, annotations and whole-book search are unsupported. Email, certificates and information Decode EML headers, body text, common character encodings and attachment filenames. Open or share readable attachments independently. HTML email becomes text without loading remote content. Decryption, signature verification and TNEF extraction are not provided. Inspect public CER, DER, CRT and PEM certificate subjects, issuers, validity, algorithms, public keys, usages and SHA-256 fingerprints. Certificates are never installed and device trust is not evaluated. File Information includes PDF metadata, image/camera properties, media tracks, text encoding/line counts and archive summaries. Open from other apps Skippable onboarding uses real iOS screenshots to explain More, Edit and favorite ordering in the share sheet. Revisit it in Settings. Categories, Recents and widgets help you return to files. Advanced Access and compatibility An annual membership or a one-time lifetime purchase unlocks the same specialized features. Check format details before purchasing. DWG supports selected 2D model-space content; DXF supports text files. CAD editing, engineering measurement, native SolidWorks and full external references are unsupported. Compressed glTF geometry, skins and active morphs require conversion. Animation is static; advanced materials may be approximate. ZIP complete model folders, or use self-contained GLB for single-file sharing. Supported ZIP AES/ZipCrypto, 7z AES and RAR4/5 AES/solid archives can open; multipart, Deflate64, Implode and ARJ are unsupported. Native previews depend on iOS codecs/variants. Privacy No account, ads, analytics or document uploads. Non-HTML previews stay offline. HTML and ZIP websites may run JavaScript and connect over HTTPS/WSS in an isolated environment; offline and Safe Preview modes are available. Terms: https://oneapps.studio/terms Privacy: https://oneapps.studio/privacy

Sticky Notea is a lightweight, thoughtfully designed place for the words you want to keep close. When an idea arrives, you shouldn't have to build a system before writing it down. Open the app, start typing, and your thought becomes a note you can see, revisit, and arrange with ease. Use it for a quick reminder, today's to-do list, a coffee recipe, a travel plan, a line of writing, or any small detail worth keeping. Designed for everyday notes: • Multiple ways to view Move between Standard List, Compact List, and Card View. Scan many notes at once, or browse them like paper notes laid out in front of you. • Simple organization Keep things clear with groups, search, pinned notes, favorites, and colors—without turning your notes into a complicated filing system. • Beautiful note images Turn a note into a polished, paper-inspired image for sharing ideas, lists, announcements, and quote cards, or save it directly to Photos. • Make it feel like yours Choose from paper colors, themes, layouts, and display options, with full Dark Mode support. A clean interface, gentle colors, and subtle motion make writing and organizing feel calm and natural. • Rich text, kept simple Use headings, lists, checklists, quotes, and bold text when you need more structure. Capture one line in a moment, or shape a longer thought at your own pace. • Local backup Export and restore your notes manually whenever you want to keep a copy or move them to another device. • App lock Protect personal notes with your device passcode or biometrics. Sticky Notea stays focused on writing, arranging, and seeing your notes clearly. It is simply a small piece of paper, ready whenever an idea finds you.