Filter Studio: Photo FX

Pro Photo Editing Tools

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Built on Core Image and PencilKit. 15 hand-tuned filters, real-time RGB adjustments, layered text and stickers, lossless export. 100% on-device. No subscription, no ads. FilterStudio is a professional, on-device photo editor engineered for speed, control and privacy. Built on Apple Core Image and PencilKit, it delivers studio-grade output without a server round trip and without a single subscription prompt. ENGINE • 15 hand-tuned filters mapped to native CIFilter primitives — Mono, Noir, Fade, Chrome, Process, Transfer, Instant, Sepia, Vivid, Dramatic, Silvertone, Posterize, Bloom, Vignette, Original. • Real-time GPU pipeline — every slider rebuilds the preview at native resolution. • Lossless export — output written back to Photos at the full input pixel size, no recompression artifacts beyond standard PNG/JPEG. ADJUSTMENTS • Brightness — linear exposure offset. • Contrast — perceptual contrast curve. • Saturation — chroma scaling, clamped against banding. • Live preview, no commit step. LAYER SYSTEM • Text layer — UTF-8, dynamic font sizing, color and bold control, free positioning. • Sticker layer — vector-style emoji and shapes, scale and rotate. • Drawing layer — Apple Pencil first, finger fallback, multi-color. • Layers composited at export time, original photo never overwritten in place. WORKFLOW 1. Pick a photo via the system PhotosUI picker. 2. Apply filter, adjust, add text/stickers, doodle. 3. Crop and rotate if needed. 4. Tap Save — written to Photos with library write authorization only. PRIVACY & SECURITY • Strict on-device processing. No analytics, no telemetry, no third-party SDKs. • Photos library access is request-once, write-only by default. • No user account, no email collection, no IDFA usage. LOCALIZATION English and Simplified Chinese, switchable from in-app settings. REQUIREMENTS iOS 17.0 or later. iPhone only. PRICING Free. No tier, no consumable, no in-app purchase. FilterStudio is for users who want professional control without subscription friction. Install once, edit forever.

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The developer, 应龙 张, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    • 应龙 张
    Size
    • 1.3 MB
    Category
    • Graphics & Design
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Simplified Chinese
    Age Rating
    4+
    Copyright
    • © 2026. zhangYinglong # 版权信息
  • Privacy Policy

    • More by 应龙 张

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