Video & Image Converter vs VoltVault

Video & Image Converter is the all-in-one media toolkit for iPhone and iPad. Convert, compress, and edit files in seconds. — everything is processed locally on your device. Your files never leave your phone. IMAGE CONVERSION Convert JPG, PNG, HEIC, WebP, GIF, BMP, and TIFF. Batch convert up to 20 images at once with resize and quality controls. AUDIO CONVERSION Convert between M4A, WAV, AAC, AIFF, CAF, and MP3. Trim audio directly in the converter. Merge and split audio clips. VIDEO TOOLS • Convert between video formats (MP4, MOV, M4V) • Compress video while preserving quality • Smart Compress — set a target file size (1 MB, 25 MB, etc.) • Video to GIF • Trim video with frame-accurate timeline • Change speed (0.25x to 4x) • Reverse, rotate, and crop video • Merge multiple clips • Stabilize shaky footage • Extract, remove, or add audio tracks IMAGE TOOLS • Background remover — one tap • AI image upscaler with before/after preview • Resize image to exact dimensions • Edit image — crop, rotate, filters & adjustments • Add text or image watermark • Social media resize (Instagram, TikTok, Twitter) • QR code generator • OCR text extraction • Collage maker with custom layouts DOCUMENT TOOLS • Images to PDF • PDF to images • Document Scanner FILES APP INTEGRATION Converted files are saved directly to the Files app for easy access. WHY VIDEO & IMAGE CONVERTER? • All processing happens on-device — no uploads, no cloud • Works fully offline • No account required • Fast, clean interface

VoltVault 是一款纯本地存储的密码保险箱， 帮你安全地管理所有账号密码和 TOTP 验证码。 【核心功能】 • 密码管理 — 统一保存账号、密码、网址、备注 • TOTP 验证码 — 自动生成六位实时动态码，扫二维码一秒导入 • Steam Guard — 支持 Steam 平台特殊验证码 • 隐私优先 — 数据仅保存在本机，不上传任何服务器 • 快速解锁 — 支持 Face ID / Touch ID 验证，一键复制 【安全设计】 • 密码和验证码 Secret 独立存储于 iOS Keychain • 查看密码、验证码、编辑条目分别独立验证开关 • 可自定义 Face ID 认证复用时长（15秒～2分钟） • App 启动验证可选，安心保护你的数据 【多语言支持】 支持简体中文、繁体中文、英语、法语、西班牙语、日语、韩语、德语 【适合人群】 • 重视隐私、不希望密码上云的用户 • 需要统一管理工作与生活账号的技术型用户 • 已使用 TOTP 但不想切换多个 App 的人 数据永远属于你。VoltVault，本地安全，不止于此。