Doc Vault vs OpenViewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Doc Vault
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Doc Vault is a private, offline-first file manager that keeps everything on your device. No cloud, no accounts, no tracking. Your files never leave your phone. Import PDFs, documents, photos, videos, audio, and web links. Organize them into folders with custom colors and icons. Find anything instantly, even text inside PDFs, scanned documents, and photos. BUILT-IN TOOLS • Document Scanner: multi-page scans saved as images or PDF • Wi-Fi Transfer: move files wirelessly between your phone and computer • Image to PDF: combine photos into a single document • Extract Audio: pull the audio track from any video • Convert Media: HEIC to JPG, MOV to MP4, and more POWERFUL VIEWERS • PDFs, images (including HEIC and SVG), videos, audio, and 30+ text and code formats • Word, Excel, and PowerPoint preview • Background audio playback with lock screen controls • Fullscreen video and Picture-in-Picture • Inline image editor: crop, rotate, flip • Video and audio trimmer • Text and markdown editor SMART SEARCH Search filenames or the actual content of your files. Doc Vault indexes text inside PDFs, OCR from photos and scanned documents, and EXIF metadata. All on-device, so nothing is ever uploaded. FILE MANAGEMENT • Nested folders with custom colors and icons • Grid and list views, sort and filter • Multi-select to move, delete, zip, or share • Zip and unzip files and folders • Real thumbnails for images, videos, and PDFs • Browse by type: documents, images, video, audio • Export files and folders to your device or another app • Storage analyzer to see what's taking space • Recent files for quick access DESIGNED FOR EVERYONE • Full Arabic and English support • iPhone and iPad with landscape layouts • Light and dark mode with three color themes (Twilight, Ocean, Forest) • Share files into Doc Vault from any other app PRIVACY BY DEFAULT Doc Vault has no servers, no accounts, no analytics, and no network requests for your files. Everything runs on-device. That's the whole point.
OpenViewer
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OpenViewer is a lightweight viewer for all standard document formats. [Supported formats] PDF · HWP · DOCX · XLSX · PPTX · EPUB · TXT · Images [Key features] • Fast launch • Dark mode • Recent files + favorites • 100% on-device processing • Native HWP support for Korean documents [Why OpenViewer?] - No in-app purchases - No account required - Ad-supported (no ads inside viewer) - English, Korean, Japanese UI Contact: wowpia0127@gmail.com
Screenshots
Verdict
The clearest difference is ads: Doc Vault at none against OpenViewer's shown. Doc Vault also leads on update cadence (every 3 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Doc Vault ships an update every 3 weeks, OpenViewer every 2 months. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.
| Parameter | Doc Vault | OpenViewer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 43 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Ahmed Althobaiti | BongJun Park |
In-app purchases
Doc Vault
No in-app purchases
OpenViewer
No in-app purchases
