LocalViewer vs Vellum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LocalViewer
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LocalViewer brings local documents, web files, ebooks, code, images, audio and video into one viewer for iPhone and iPad. Open content from Files, the Share Sheet, web folders or linked folders, then organize, read and play it on your device. No account is required. Supported content • Web and data: HTML, HTM, Markdown, TXT, JSON, CSV, TSV, SVG and limited TSX/JSX component previews • Documents: PDF, Word, Excel, PowerPoint and RTF • Ebooks: DRM-free EPUB 2 and EPUB 3, including reflowable and fixed layouts • Images: JPG, PNG, WebP, HEIC, TIFF, BMP, GIF, PSD and other supported variants • Media: MP3, M4A, AAC, WAV, FLAC, plus MP4, MOV and M4V with system-supported codecs • Code and configuration: Swift, Python, JavaScript, TypeScript, CSS, C/C++, Java, Kotlin, Shell, SQL, XML, YAML, TOML, INI, CONF and plist Read and play • EPUB contents, in-book search, themes and position recovery; adjust text size in reflowable books while preserving fixed layouts • Video seeking, playback speed and full screen; audio and video play in the foreground, with one active playback source • Read-only code with line numbers, basic highlighting, wrapping, find and copy; binary plist is displayed as XML • RTF formatting where supported, text search, copying and reading-position recovery • Outlines, in-document search, image zoom and format-specific exports where available Organize and import • Filename search, type filters, grouping, favorites, move and rename • Import from Files, Share Extension, complete web folders or linked folders • Undo deletion within 3 seconds • Control web scripts, external resources, zoom and back/forward navigation No account, ads or analytics SDKs. LocalViewer does not actively collect personal data; imported content stays on your device by default. Publication scripts and automatic remote resources are disabled for EPUB. Video compatibility depends on the actual codec supported by the system.
Vellum
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Some HTML documents and statements just won't open in Mail or Safari on your iPhone—leaving you stuck, or reaching for a Windows PC. Vellum is the simple, fast viewer that opens them right where you are. Wherever the file arrived—Mail, a messenger, Files, or a browser—just tap "Open in Vellum" and it opens instantly, rendered cleanly and completely. Opens right from any app See a document in Mail or Files? Tap "Open in Vellum" and it's there at once. No setup, no sign-up. A built-in guide walks you through it the first time. Opens what others can't HTML files and statements that won't display elsewhere open perfectly here—nothing broken, nothing missing. Read it your way Search for any word inside a document, pinch to zoom in as close as you like, and export an HTML statement as a clean PDF to keep or share. Auto-saved and organized Files you open are saved automatically and grouped by month. Pin the ones you reach for, sort by date or name, and find anything again in seconds. Yours alone No account, no servers, no ads. Lock the app with Face ID, hide its contents when you switch apps, and let old files clean themselves up. Everything stays on your device. Open any document, right from your hand.
Screenshots
Verdict
The clearest difference is update cadence: Vellum at daily against LocalViewer's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
LocalViewer costs $1.99 and Vellum $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LocalViewer ships an update every 3 weeks, Vellum daily. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.
| Parameter | LocalViewer | Vellum |
|---|---|---|
| Price | $1.99 | $1.99 |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 明罡 蒋 | HAEDUN KIM |
In-app purchases
LocalViewer
No in-app purchases
Vellum
No in-app purchases









